Database Users

[Guide] Install Lineage OS 17 and AOSiP (Android 10) GSI on Mi Max3

** Post updated on 01/10/19 to include AOSiP GSI **
After trying out a lot of Android 10 GSIs, I have managed to get Lineage OS 17 and AOSiP GSI builds by Erfan to run on Mi Max 3. Thanks to the Dev erfanoabdi and his team who have worked on these.
On Mi Max 3 they are very smooth when they are working. However, certain apps can trigger freezing episodes or forced reboots. AOSiP seems smoother and more stable for now. Both are almost stock with no customization. Over all they are still buggy, just usable, and not reliable.
I am not a developer! Try at your own risk!!
** PLEASE NOTE: You would need to be on one of the AOSP- or LOS-based custom Pie Roms with firmware version 9.9.3 (as base) before flashing this rom. Havoc and AEX have been confirmed to work**
Here are the steps
What you would need:
1. GSI Android 10 Rom:
a. Lineage 17 GSI by Erfan: lineage-17.0-Aonly-10-20190909-ErfanGSI.img.7z
b. AOSiP
2. Permissiver_v4.zip
3. FixZygote_v2.zip
4.open_gapps-arm64-10.0-nano-20190920-UNOFFICIAL.zip
5. Magisk 19.4
6. Any file extractor app. I used ZArchiver from Play store.
Installation Steps.:
1. Extract system image from Android 10 GSI zipped file using app of your choice (ZArchiver in my case)
2. Boot into your recovery (I used Nijel's TWRP 3.2.3-3 and 3.2.3-4)
3. Back up your current ROM
4. Wipe data, system, art/davlik and cache
5. Tap install. Then tap ''Image''. Then select the (extracted) Lineage-17 system image, then tap System. Swipe to install.
6. Install Permissiver_v4 zip file.
7. Install FixZygote_V2 zip file
8. Install Magisk 19.4 zip file.
9. Boot into system. Tap ''OK'' on the screen pop up.
10. Reboot into TWRP.
11. Install OpenGaps.
13. Reboot system and set up your phone.
14. Reboot phone and start using.
What works
1. Mobile data, Wifi and bluetooth
2. Phone calls and messaging including dual sim
3. Playstore
4. Rooting with Magisk
5. Finger print reader
6. Gestures are amazing. Dark mode great!
Bugs
1. Stock camera and torch light do not work.
2. Slider does not control brightness
3. Chrome browser freezes. . Firefox and Via browser running smoothly.
4. Camera and video apps force-close or cause random reboots

Where are the links to the packages and why you install two different gapps (Bitgapps&Opengapps)???

L_e_x_t_e_r said:
Where are the links to the packages and why you install two different gapps (Bitgapps&Opengapps)???
Click to expand...
Click to collapse
There are no links to the packages as I wasn't certain of the XDA rules on links to other websites. Just google them and they are easy to find.
I tried just open gapps or just BitGaps and didn't work. Flashing BitGaps first appeared to point the Open Gapps to the right partition, and that worked.

Thanks for posting but very confusing without links. I know what mean about the rules but you can link the page for the GSI not the download etc

shingers5 said:
Thanks for posting but very confusing without links. I know what mean about the rules but you can link the page for the GSI not the download etc
Click to expand...
Click to collapse
I understand.
Thanks to the Nesh Patel at Tweakguy for the links.
My thanks to the devs who have worked on these.
Here are the links:
For Lineage GSI: https://github.com/resk84/releases/...ineage-17.0-Aonly-10-20190909-ErfanGSI.img.7z
For permissive: https://androidfilehost.com/?fid=600693192411788649
For bitzygote:
https://androidfilehost.com/?fid=1395089523397961748

Permissive link not working

shingers5 said:
Permissive link not working
Click to expand...
Click to collapse
Missed one digit at the end.
Permissiver link:
https://androidfilehost.com/?fid=6006931924117886495

This won't boot on global mix max 3 boot loop with both Nigel mod and orangefox recoveries. No work for global 4gb 64gb ROM model

shingers5 said:
This won't boot on global mix max 3 boot loop with both Nigel mod and orangefox recoveries. No work for global 4gb 64gb ROM model
Click to expand...
Click to collapse
I was on the latest Havoc Rom for Mi Max 3. Also my hardware is 6GB 128GB.
I tried a lot of the Android 10 GSIs and this was the only one that booted. The sequence has to be exactly same as in my post to boot.
Also, I don't know if it may have to do with your vendor. I didn't wipe and then flash the device-specific vendor firmware as suggested in some GSI how-to's.

So you were on an android pie ROM and flashed android 10 over it without wipe? I was on miui 11 before flash on global device

shingers5 said:
So you were on an android pie ROM and flashed android 10 over it without wipe? I was on miui 11 before flash on global device
Click to expand...
Click to collapse
Yes Havoc Pie Rom. I wiped davlik/art, system, data and cache only. Then proceeded exactly as outlined in my post. I have just flashed the LOS 17 again with my steps and it boots.

stonesolouk said:
Yes Havoc Pie Rom. I wiped davlik/art, system, data and cache only. Then proceeded exactly as outlined in my post. I have just flashed the LOS 17 again with my steps and it boots.
Click to expand...
Click to collapse
first attempt
i had derpfest AOSIP so i flashed LOS 17 over that with no wipe then the permissive and fix zip and it booted with errors. gestures for home works but edges dont. also kept fail on system etc
2nd attempt
flashed derpfest AOSIP then reboot
back to recovery then wipe as you did flash LOS17 then permissive and fix zips then reboot. boots up but same as before home gesture works and dark mode etc but edges don't. the bitgapps dont flash and open gapps nano causes bootloop on its own
3rd attempt gonna try with firmware 9.9.3 and flash without wipe vendor like the old days to see what happens

Got it good as I can for now
Flashed and booted AEX 6.7
Back to recovery and wiped as you say and not vendor
Flashed LOS 17 image then permissive and fix zips and magisk
Reboot
Didn't need flash 2 gapps just open gapps nano and reboot
Seems good apart from obvious
Brightness doesn't work
Camera
Battery drain very high

shingers5 said:
Got it good as I can for now
Flashed and booted AEX 6.7
Back to recovery and wiped as you say and not vendor
Flashed LOS 17 image then permissive and fix zips and magisk
Reboot
Didn't need flash 2 gapps just open gapps nano and reboot
Seems good apart from obvious
Brightness doesn't work
Camera
Battery drain very high
Click to expand...
Click to collapse
That's great. It settles down after a few more boots. I will update my post with your findings.
Brightness and all edge gestures work for me though.

stonesolouk said:
That's great. It settles down after a few more boots. I will update my post with your findings.
Brightness and all edge gestures work for me though.
OK cool. Hopefully someone can get it working fully or at least stable enough for daily use
Click to expand...
Click to collapse

And what about the AOSIP-Aonly-10-20190924-ErfanGSI.7z? Do I flatten the Lineage-17.0-Aonly-10-20190909-ErfanGSI.img or do I have to decide between one of them?
Does not herfor from the instructions

rudiratlos57 said:
And what about the AOSIP-Aonly-10-20190924-ErfanGSI.7z? Do I flatten the Lineage-17.0-Aonly-10-20190909-ErfanGSI.img or do I have to decide between one of them?
Does not herfor from the instructions
Click to expand...
Click to collapse
Yes it is one or the other.
You could try each one separately, then decide the one you prefer. AOSiP seems more fluid and stable.

Thank you for your prompt reply

What's the report on AOSIP as I haven't tried it yet. Wish someone would take the gsi and get it stable

shingers5 said:
What's the report on AOSIP as I haven't tried it yet. Wish someone would take the gsi and get it stable
Click to expand...
Click to collapse
It is smoother and more stable compared to LOS 17 but brightness slider and camera still don't work.

Problems installing Gapps on GSI Roms

So currently I'm running AOSP Extended V6 on my 002. The rom itself runs great BUT I can't get Gapps to stick. Unlocked bootloader with TWRP 3.1.0. After I resize system Gapps will install and say Successful but when I clear cache and reboot I have no nothing installed. I'm new to this device so be easy if i'm missing something obvious.
EDIT: I've tried multiple version of Gapps from a few different places.

I have yet to have any GSI rom work, so I stopped trying and just ran a debloat script I wrote

It's weird how hit and miss GSI is on the exact same model. I may end up reverting back to stock and unlock/root and use your script and then just call it a day if I can't figure this out. I SO wanted AOSP Ext to work but kinda useless to me without Gapps.

razredge said:
It's weird how hit and miss GSI is on the exact same model. I may end up reverting back to stock and unlock/root and use your script and then just call it a day if I can't figure this out. I SO wanted AOSP Ext to work but kinda useless to me without Gapps.
Click to expand...
Click to collapse
I honestly even uninstalled gapps on my 10 inch because its one purpose is gonna be an in-car OBD II monitoring tablet with Torque Pro for my car.
GSI roms are so strange. I have 3 G7 Play's. 2 of them took the same GSI just fine, then the third just bricked and boot looped. I had to change the boot animation in TWRP to get it to boot. Even then, camera and bluetooth didn't work, but the other 2 were 100% functional. Reflashed quite a few times

razredge said:
It's weird how hit and miss GSI is on the exact same model. I may end up reverting back to stock and unlock/root and use your script and then just call it a day if I can't figure this out. I SO wanted AOSP Ext to work but kinda useless to me without Gapps.
Click to expand...
Click to collapse
I believe the hit and miss comes from the gsi's being developed on specific devices by different developers. They are supposed to work on any project treble enabled devices but it's just not so. This is just my thought from trying almost all available and a lot of time reading. The whole idea has slowly began a full circle movement to custom gsi's. The oxymoron of that last sentence kind of sums it up from my experience. Custom generics are what are being produced for the most part. If one looks at the different maintainers threads they will see what device it is supposed to work on. A.O.S.P should work a little better than most and the builds I have tried from ci.android.com have worked really well. Personally didn't see much point in the stock android gsi over debloated stock in this case. Much simpler to maintain device integrity by debloating the very few unwanted apps. All that said I am still running Beast ROM as I actually like it, the only issue I know of is device theme(takes forever+know-how) and I don't use gapps. So it works great on my tablet and I am not sure what options I will have in the future. All the changes have me sitting with a tablet that if flashed back to stock will not take ota's and a serial# of 0123456789ABCDEF. Happy Modding.
Don't know if you've seen them but there are a couple gsi's that have gapps installed with no other options, can't remember which they were, but may work better.

I appreciate the info and insight you always give. My 002 I actually went back to stock and just rooted and debloated it. I wanted it to be stable since it's my couch tablet lol. I picked up a 007 on Black Friday just for the hell of it. I'm gonna play with it and experience some different roms. BTW, they changed the model numbers on them. It's not with me right now but the model number is all numbers now. Looks more like the serial number.
Sent from my Pixel 2 using Tapatalk

razredge said:
I appreciate the info and insight you always give. My 002 I actually went back to stock and just rooted and debloated it. I wanted it to be stable since it's my couch tablet lol. I picked up a 007 on Black Friday just for the hell of it. I'm gonna play with it and experience some different roms. BTW, they changed the model numbers on them. It's not with me right now but the model number is all numbers now. Looks more like the serial number.
Click to expand...
Click to collapse
The model number I remember for the 8" was ONA19TB002 and 10" was ONA19TB003 and 007 was kboard model. Did they change to something other than that ? I remember a different number when looking at fccid page but it seemed shorter. When it's nearby give update if you don't mind, I'm curious it may help in search for firmware.

The new model number is 100005209. I took the back off of the new one and my old one and they are identical with the same part numbers. They're also all branded Surf now.
Sent from my Pixel 2 using Tapatalk

I am venturing to flash ohh aosp -10 v107.
Needed to flash the vanilla version, because the gapps version was too big.
All I get is stuck at the onn splash screen.
Do I need to flash anything to vbmeta to get this to boot a gsi?
Update:
Self test result
Yes. Even after unlocking bootloader, still need to flash vbmeta with --disable-verification before you can boot gsi.
Then there is a setprop that is needed to get the gsi to boot
While device is stuck on the"Android" logo bootanimation from aosp. Enter commands into ad shell.
Code:
adb shell setprop debug.stagefright.ccodec 0
This will get tablet to boot. But the setprop (which should become persistent) does not remain after a reboot. So the line needs to be added to the boot script built into phh gsi. "rw-sysyem.sh"
Code:
adb shell
su
mount -o rw,remount /
echo "setprop debug.stagefright.ccodec 0" >> /system/bin/rw-system.sh
These steps worked for me. And should work for you. But as with any modifications to your device , by you , are your responsibility to confirm are done correctly.

The main problem I've been having has not been with the ROM itself. I had a few vanillas that after resizing and installing GAPPS the actual apps don't show up. I'd go back into TWRP and reflash the GAPPS and it would respond with a success after seeing all the apps install but after a reboot none was there.

razredge said:
The main problem I've been having has not been with the ROM itself. I had a few vanillas that after resizing and installing GAPPS the actual apps don't show up. I'd go back into TWRP and reflash the GAPPS and it would respond with a success after seeing all the apps install but after a reboot none was there.
Click to expand...
Click to collapse
I just had that with gapps install I was trying. And in recovery after the gapps flash, before reboot I looked around with twrp file manager. I see all the apps installed. But they are not in the correct location.
They are getting installed in the /system-root/app folder rather than the /system-root/system/app folder.
I don't know the fix yet. I mentioned it in the twrp thread and diplomatic has said he does not know why it didn't go as it was supposed to .

mrmazak said:
I just had that with gapps install I was trying. And in recovery after the gapps flash, before reboot I looked around with twrp file manager. I see all the apps installed. But they are not in the correct location.
They are getting installed in the /system-root/app folder rather than the /system-root/system/app folder.
I don't know the fix yet. I mentioned it in the twrp thread and diplomatic has said he does not know why it didn't go as it was supposed to .
Click to expand...
Click to collapse
Interesting.... I'll have to keep an eye on that. I didn't even pay attention where they installed to. Thanks for the heads up!

mrmazak said:
I just had that with gapps install I was trying. And in recovery after the gapps flash, before reboot I looked around with twrp file manager. I see all the apps installed. But they are not in the correct location.
They are getting installed in the /system-root/app folder rather than the /system-root/system/app folder.
I don't know the fix yet. I mentioned it in the twrp thread and diplomatic has said he does not know why it didn't go as it was supposed to .
Click to expand...
Click to collapse
Are you sure that is not correct? Because I just checked on my Onn 8 with the stock rom and they are in /system/app/.
There system privileged apps in: /system/priv-app. Updates are in /data/app, I believe.

Has anyone had success in installing opengapps on one of these tablets? Also, has anyone tried installing it with System mounted in TWRP? Even if it doesn't work in TWRP, I believe the install script supports running on Android too.

How has anyone been able to flash a gsi. Ive even tried disabling avb but cant get it to boot. After reboot twrp dosent even recognize an os installed
Sent from my SM-G975U1 using XDA Labs

diplomatic said:
Has anyone had success in installing opengapps on one of these tablets? Also, has anyone tried installing it with System mounted in TWRP? Even if it doesn't work in TWRP, I believe the install script supports running on Android too.
Click to expand...
Click to collapse
I haven't so far. I'll try with mounting system and post the results.

razredge said:
I haven't so far. I'll try with mounting system and post the results.
Click to expand...
Click to collapse
Fast forward 20 days... any progress?

diplomatic said:
Fast forward 20 days... any progress?
Click to expand...
Click to collapse
Woops.... No it still doesn't work. Actually it made one of my 8's bootloop after.

I found this solution in another thread:
- Format data partition and reboot recovery.
- Open terminal in twrp without system, data, and cache mounted.
- Enter the following commands:
e2fsck -y /dev/block/by-name/system
e2fsck -f /dev/block/by-name/system
resize2fs /dev/block/by-name/system
- Then reboot twrp
- Flash system img reboot recovery
- After that flash pico gapps without system mounted
Thats how i was able to successfully flash gapps on aosp phh 10. You may need to try a couple times but it should work.
Sent from my SM-G975U1 using XDA Labs

jwarrior319 said:
I found this solution in another thread:
- Format data partition and reboot recovery.
- Open terminal in twrp without system, data, and cache mounted.
- Enter the following commands:
e2fsck -y /dev/block/by-name/system
e2fsck -f /dev/block/by-name/system
resize2fs /dev/block/by-name/system
- Then reboot twrp
- Flash system img reboot recovery
- After that flash pico gapps without system mounted
Thats how i was able to successfully flash gapps on aosp phh 10. You may need to try a couple times but it should work.
Click to expand...
Click to collapse
So you got phh 10 to boot? How does it run any major bugs? Thanks

[Guide] Easily Build and Install LineageOS 17.1 with or without Gapps replacement

I've put together a guide for building your own LineageOS 17.1 (android 10) using a docker build environment or on your own system. The guide includes environment setup, and installation instructions as well as some troubleshooting and debugging information.
The easy way is as simple as cloning two git repos, getting the docker image, and running build_sargo.sh
The hard way goes into more detail, requires more previous knowledge, and doesn't use the docker but is useful for getting more familiar with the process.
The docker image is one that already existed for building lineageos 16modified to supports lineagsos 17.
It also includes patches that haven't been merged upstream yet that fix bluetooth, a bootloop, and increase battery life.
With some small modifications, this could also be used for the Pixel 3a XL (bonito)
https://github.com/SolidHal/Build-lineageos-sargo

Thanks for this!
Stealth111

SolidHal said:
I've put together a guide for building your own LineageOS 17.1 (android 10) using a docker build environment or on your own system. The guide includes environment setup, and installation instructions as well as some troubleshooting and debugging information.
The easy way is as simple as cloning two git repos, getting the docker image, and running build_sargo.sh
The hard way goes into more detail, requires more previous knowledge, and doesn't use the docker but is useful for getting more familiar with the process.
The docker image is one that already existed for building lineageos 16modified to supports lineagsos 17.
It also includes patches that haven't been merged upstream yet that fix bluetooth, a bootloop, and increase battery life.
With some small modifications, this could also be used for the Pixel 3a XL (bonito)
https://github.com/SolidHal/Build-lineageos-sargo
Click to expand...
Click to collapse
There should be VERY little modification required from sargo to bonito as one is simply a different size than the other. (I'm actually surprised that nobody ever compared the two in terms of hardware (especially since their simultaneous release).

I have built pure lineageos 17 according to https://forum.xda-developers.com/pixel-3a/how-to/guide-easily-build-install-lineageos-17-t4048063
The esim manager has to be disabled or you have to stop enforcing SELinux.
Download:
https://drive.google.com/drive/folders/19MD_1CZrhejh29ui3Q12Ypqfp-mU3dlt?usp=sharing

anonym12 said:
I have built pure lineageos 17 according to https://forum.xda-developers.com/pixel-3a/how-to/guide-easily-build-install-lineageos-17-t4048063
The esim manager has to be disabled or you have to stop enforcing SELinux.
Download:
https://drive.google.com/drive/folders/19MD_1CZrhejh29ui3Q12Ypqfp-mU3dlt?usp=sharing
Click to expand...
Click to collapse
If you include gapps in your build, the esim manager should stop crashing. If running gappless, I remove esim and hotword enrollment from the proprietary files.

gee one said:
If you include gapps in your build, the esim manager should stop crashing. If running gappless, I remove esim and hotword enrollment from the proprietary files.
Click to expand...
Click to collapse
Hello!
I have also built & installed lineageos 17 according to the guide above, thanks!
Now i like to install Gapps, but how? Booting to linage-recovery and flash from internal storage wont work as it refuse to mount? And adb sideload'ing gapps-nano-zip gives a error message about to little space available? Any ideas?

spinxen said:
Hello!
I have also built & installed lineageos 17 according to the guide above, thanks!
Now i like to install Gapps, but how? Booting to linage-recovery and flash from internal storage wont work as it refuse to mount? And adb sideload'ing gapps-nano-zip gives a error message about to little space available? Any ideas?
Click to expand...
Click to collapse
The issue is the new dynamic partition scheme doesn't leave enough room to install any extra system apps. There is a patch on the Lineage Gerrit, but it hasn't been merged (https://review.lineageos.org/c/LineageOS/android_device_google_bonito/+/261941).

fireclaw722 said:
The issue is the new dynamic partition scheme doesn't leave enough room to install any extra system apps. There is a patch on the Lineage Gerrit, but it hasn't been merged (https://review.lineageos.org/c/LineageOS/android_device_google_bonito/+/261941).
Click to expand...
Click to collapse
Thanks for letting me know, so as of now there is no workaround to get GApps work with this branch after it has been installed?

spinxen said:
Thanks for letting me know, so as of now there is no workaround to get GApps work with this branch after it has been installed?
Click to expand...
Click to collapse
Not that I know of. You either have to create space for G-Apps, or bundle G-Apps with the ROM.

spinxen said:
Hello!
I have also built & installed lineageos 17 according to the guide above, thanks!
Now i like to install Gapps, but how? Booting to linage-recovery and flash from internal storage wont work as it refuse to mount? And adb sideload'ing gapps-nano-zip gives a error message about to little space available? Any ideas?
Click to expand...
Click to collapse
I include gapps when I build the ROM. I have a vendor tree that is based off of opengapps pico. I just unpacked this pico zip and mimic'ed what it installed, plus something like pixel migration tool.

gee one said:
I include gapps when I build the ROM. I have a vendor tree that is based off of opengapps pico. I just unpacked this pico zip and mimic'ed what it installed, plus something like pixel migration tool.
Click to expand...
Click to collapse
Would you mind to share your zip? Thanks!

spinxen said:
Would you mind to share your zip? Thanks!
Click to expand...
Click to collapse
https://opengapps.org/

anonym12 said:
I have built pure lineageos 17 according to https://forum.xda-developers.com/pixel-3a/how-to/guide-easily-build-install-lineageos-17-t4048063
The esim manager has to be disabled or you have to stop enforcing SELinux.
Download:
https://drive.google.com/drive/folders/19MD_1CZrhejh29ui3Q12Ypqfp-mU3dlt?usp=sharing
Click to expand...
Click to collapse
gee one said:
I include gapps when I build the ROM. I have a vendor tree that is based off of opengapps pico. I just unpacked this pico zip and mimic'ed what it installed, plus something like pixel migration tool.
Click to expand...
Click to collapse
This is somewhat above my level of knowledge, if you have a complete build zip with Gapps, do u mind sharing this with me?

How to install?

LioneageOS 17.1 for Poxel 3a: Notes from the front
gee one said:
I include gapps when I build the ROM. I have a vendor tree that is based off of opengapps pico. I just unpacked this pico zip and mimic'ed what it installed, plus something like pixel migration tool.
Click to expand...
Click to collapse
Because of the issues, I have stuck with those versions that include GApps (invisiblek's simple LineageOS 17.1 works a treat, and is cloneable for those looking to build their own). Until beta 3 of Android 11 drops, I'm running this. Still no TWRP, or root, or anything else. Other than Pixel Launcher, I'm basically running stock Lineage.

Hi guys,
Just built my own image according to the 'easy' method (using docker). Took about 5 hours, and seemed to have gone well, almost no errors
I started out by flashing the Pixel 3a with the lastest Android 10 Factory Image from Google (QQ2A.200305.002, Mar 2020) to be sure it's as clean as possible. Booted into Android 10 once, enabled Developer Settings et cetera.
Then followed the 'Install' steps from https://github.com/SolidHal/Build-lineageos-sargo:
- boot into bootloader (fastboot mode)
- run 'fastboot flash boot boot.img'
- reboot into recovery -> Apply update -> Apply from ADB -> run 'adb sideload lineage-17.1-20200404-UNOFFICIAL-sargo.zip' (in my case)
When entering recovery mode I noticed an error at the botton of the screen: 'E:[libfs_mgr]Failed to mount /data: Invalid argument'. Despite that I could continue and sideload/install my self built lineageos zip, which finished without error (status 0). After installation the phone went back to into recovery mode (as described on the Github guide). Unfortunately, when I continued and picked 'Reboot System Now' I got thrown into the bootloader with enter reason: 'error boot prepare'. Every time the phone boots I see this error now.
Does anybody have a clue what I could be doing wrong? Any help is appreciated, thanks!
Edit: Okay, seems my problem is solved. When flashing the self-built boot.img, in my case I also had to specify which boot part to flash to: boot_a or boot_b. After having done that, booting now works.
Thanks SolidHal for providing your docker file and making it easy to built your own LineageOS 17.1 image!

Working and Running Smoothly
Thanks for posting this.
I was also able to build and install this successfully using the easy method. Yes, it takes a long time and requires an ample amount of memory and storage.
The battery life is excellent compared to the other roms/kernels I've tested so far. Started with a factory flash of Android 10.0.0 (QQ2A.200305.002, Mar 2020) (https://developers.google.com/android/ota). Then I followed the instructions here.
I also had the E:[libfs_mgr] error but it still installed correctly after the second try. Specifying boot_a or boot_b may have been what got this to work for me. Thanks to P1x3l3d.
Rooted by patching the boot image with Magisk (https://forum.xda-developers.com/pixel-3a/how-to/how-to-root-pixel-3a-preferred-t3938783).

P1x3l3d said:
Hi guys,
Just built my own image according to the 'easy' method (using docker). Took about 5 hours, and seemed to have gone well, almost no errors
I started out by flashing the Pixel 3a with the lastest Android 10 Factory Image from Google (QQ2A.200305.002, Mar 2020) to be sure it's as clean as possible. Booted into Android 10 once, enabled Developer Settings et cetera.
Then followed the 'Install' steps from https://github.com/SolidHal/Build-lineageos-sargo:
- boot into bootloader (fastboot mode)
- run 'fastboot flash boot boot.img'
- reboot into recovery -> Apply update -> Apply from ADB -> run 'adb sideload lineage-17.1-20200404-UNOFFICIAL-sargo.zip' (in my case)
When entering recovery mode I noticed an error at the botton of the screen: 'E:[libfs_mgr]Failed to mount /data: Invalid argument'. Despite that I could continue and sideload/install my self built lineageos zip, which finished without error (status 0). After installation the phone went back to into recovery mode (as described on the Github guide). Unfortunately, when I continued and picked 'Reboot System Now' I got thrown into the bootloader with enter reason: 'error boot prepare'. Every time the phone boots I see this error now.
Does anybody have a clue what I could be doing wrong? Any help is appreciated, thanks!
Edit: Okay, seems my problem is solved. When flashing the self-built boot.img, in my case I also had to specify which boot part to flash to: boot_a or boot_b. After having done that, booting now works.
Thanks SolidHal for providing your docker file and making it easy to built your own LineageOS 17.1 image!
Click to expand...
Click to collapse
Did you build in Linux? If so, which version? (I'm not used to building Docker - and especially in Linux - and I'd rather do it right; therefore WHICH version of Linux has everything to do it right is critical.)

PGHammer, I don't think it's going to matter too much what distro you use because you're going to have to install the latest platform-tools and install docker from a repo anyways. Just use something recent. Ubuntu comes to mind if you're not a huge GNU/Linux guy.
I built using Debian Stretch and had no issues other than my ram got all used up so I had to create more swap and add
vm.swappiness=60 to /etc/sysctl.conf
You need 100+GB HDD, 16GB+ RAM, and a fat swap space (I used a 20GB Swap file)
Also someone (anon12?) already posted a ~700MB zip of their build in this thread and I can confirm it works.

barqs_root said:
Also someone (anon12?) already posted a ~700MB zip of their build in this thread and I can confirm it works.
Click to expand...
Click to collapse
How did you you get this to install, I get signature verification failed, error:21. Then abd aborts the installation. I confirmed the integrity of the images with the provided checksum files. I even downgraded back to February's update because I was on Aprils update and thought that maybe that was the issues.
The steps I did are as follows:
Unlock bootloader
Enable debugging
Booting into the boot loader- run ./fastboot flash boot_a boot.img( ./ before is required due to being stuck on windows while I work from home.) Successfully installs to boot_a in 2.5sec.
Booting to recovery
Wipe/factory reset
Apply update from ADB- ./adb sideload lineage-17.1-20200222-UNOFFICIAL-sargo.zip
This is the following errors
E: failed to verify whole-file signature
Update package verification took 35.0 s (result 1).
E: Signature verification failed
E: error: 21
Install from ADB completed with status 2.
Installation aborted.

Fresh 6T on Pie. Flashed Lineage 16 and TWRP; cannot get past encryption for GApps

Hello All,
I picked up a OP 6T from Amazon and would like to run Lineage 16.0 and load GApps, along with a number of other apps. I have TWRP Fajita (bluespark) installed and can boot to it. I also have Lineage 16 flashed as my ROM on Slot A, to which I can also successfully boot. I have Mind the GApps .zip ARM64 version on internal storage root.
Prior to flashing Lineage, I also loaded Magisk, which is still there as an app.
In trying to load MtheGApps, I cannot get past encryption in TWRP. TWRP prompts for a password, but I have no idea what that might be. I've read (somewhere) that the password is the pin I defined for my opening screen in Lineage, which I know. That does not work. I also have fingerprint enabled and have defined a print. The pin and finger get me into lineage without any trouble.
All of this is on slot A. Slot B seems to holds an older T-Mobile ROM, which I booted at some point. Not really interested in that, so eventually, I'll want to know what to do with that slot. I'll also want to root Lineage.
Maybe I should start from scratch? ( not sure how to get back there). Any guidance greatly appreciated!

It's like that because you didn't format data. Also you can't have OOS on one slot, and an AOSP ROM on another slot.
Here's the LOS install instructions I've been posting / using for clean / first installs.
Note the part in the begining about using 9.0.17 or 10.3.1 depending on which version of LOS you are using. Don't mix Android 10 and 9. Any questions ask.
Also note when Magisk is flashed those instructions. You're close, just missed a couple steps.

Next Steps...
OhioYJ said:
It's like that because you didn't format data. Also you can't have OOS on one slot, and an AOSP ROM on another slot.
Here's the LOS install instructions I've been posting / using for clean / first installs.
Note the part in the begining about using 9.0.17 or 10.3.1 depending on which version of LOS you are using. Don't mix Android 10 and 9. Any questions ask.
Also note when Magisk is flashed those instructions. You're close, just missed a couple steps.
Click to expand...
Click to collapse
OK, finally getting back to this...
I currently have LOS 16 and twrp fajita 3.2.3-2 onboard, as well as Magisk Manager (but not magisk - shows red question mark and "magisk not installed" in Magisk mgr.).
I want to go to LOS 17, load gapps and root to remove redundant apps.
First, I need to I need to get back to stock ROM before anything else, right? I've downloaded 10.0.1-OnePlus6TOxygen_34_OTA_041_all_1911142208_af338-FASTBOOT.zip
I'll also need LOS 17.X, correct? I have this: lineage-17.1-20200104_020517-UNOFFICIAL-fajita.zip
I'll need the Q version of TWRP, right? Still looking for that. Is this version of TWRP specific to the OP 6T, or specific to Android 10? Other?
I'll need the ARM64 , Android 10 version of mindthegapps (mindthegaps supports A/B architecture, right?). Still looking for that. I've found "GApps", but not "mindthegapps". There's also "bitgapps". Should I consider this?
I'll need magisk manager. magisk uninstaller and magisk, correct? I have MagiskManager-v7.5.1.apk, Magisk-v20.3.zip and Magisk-uninstaller-20200110.zip. Not sure if these are the right ones..
I think the main thing I need help with is getting back to the stock ROM. Guessing that would be OOS10. Once I get there, there are lots of instructions around on how to get to LOS 17.
Thank you!!

NoBodyUKnow said:
OK, finally getting back to this...
Click to expand...
Click to collapse
Your version of TWRP could be part of the problem. This is the thread for the official maintainer, use these builds of TWRP even though they say "unofficial." Q is for Android 10, Pie is for Android 9. For LOS 17, download the 3.3.1-32 versions. Remember you are booting the img files, the Q version, you use the same installer for both versions of Android.
To go to LOS 17 you need Android 10 on both slots. Doesn't matter how you get there. 10.3.1 is the latest version from OP, so there is technically a newer version than what you downloaded.
Fastboot ROM page.
You have a few options:
- You can also update using TWRP, and flashing the OTA full ZIP. Just be aware, you need to flash the OTA zip, flash the TWRP installer, reboot to recovery, flash the OTA zip again. Reboot. At this point the phone won't boot, it will just go to stock recovery, wipe data (factory reset), and it should boot up into OOS. Then boot your TWRP img, install TWRP, boot to recovery, start the LOS install I linked to above.
- Use the fastboot ROM. Again as above this will require TWRP installation, etc.
- My least favorite, the MSMTool. My opinion, is the MSMTool should always be a last resort as it locks your bootloader. You can unlocking afterwards again, but if something goes wrong, it could be a bad thing. I just always try every other option before jumping to this one.
As for Gapps, I just use OpenGapps. At this point you don't even have to mess with their test or beta folders anymore. You can just select it from their homepage, and download Android 10 gapps. OpenGapps page, the 6T is Arm64, LOS17 is Android 10, I always use Nano
As for Magisk, yes 20.3. The uninstaller you don't really need as this will essentially be a clean install. The 20.3 zip will also install the Magisk Manager app.
Hopefully that clears some things up?

NoBodyUKnow said:
OK, finally getting back to this...
I currently have LOS 16 and twrp fajita 3.2.3-2 onboard, as well as Magisk Manager (but not magisk - shows red question mark and "magisk not installed" in Magisk mgr.).
I want to go to LOS 17, load gapps and root to remove redundant apps.
First, I need to I need to get back to stock ROM before anything else, right? I've downloaded 10.0.1-OnePlus6TOxygen_34_OTA_041_all_1911142208_af338-FASTBOOT.zip
I'll also need LOS 17.X, correct? I have this: lineage-17.1-20200104_020517-UNOFFICIAL-fajita.zip
I'll need the Q version of TWRP, right? Still looking for that. Is this version of TWRP specific to the OP 6T, or specific to Android 10? Other?
I'll need the ARM64 , Android 10 version of mindthegapps (mindthegaps supports A/B architecture, right?). Still looking for that. I've found "GApps", but not "mindthegapps". There's also "bitgapps". Should I consider this?
I'll need magisk manager. magisk uninstaller and magisk, correct? I have MagiskManager-v7.5.1.apk, Magisk-v20.3.zip and Magisk-uninstaller-20200110.zip. Not sure if these are the right ones..
I think the main thing I need help with is getting back to the stock ROM. Guessing that would be OOS10. Once I get there, there are lots of instructions around on how to get to LOS 17.
Thank you!!
Click to expand...
Click to collapse
OhioYJ said:
It's like that because you didn't format data. Also you can't have OOS on one slot, and an AOSP ROM on another slot.
Here's the LOS install instructions I've been posting / using for clean / first installs.
Note the part in the begining about using 9.0.17 or 10.3.1 depending on which version of LOS you are using. Don't mix Android 10 and 9. Any questions ask.
Also note when Magisk is flashed those instructions. You're close, just missed a couple steps.
Click to expand...
Click to collapse
NoBodyUKnow said:
Hello All,
I picked up a OP 6T from Amazon and would like to run Lineage 16.0 and load GApps, along with a number of other apps. I have TWRP Fajita (bluespark) installed and can boot to it. I also have Lineage 16 flashed as my ROM on Slot A, to which I can also successfully boot. I have Mind the GApps .zip ARM64 version on internal storage root.
Prior to flashing Lineage, I also loaded Magisk, which is still there as an app.
In trying to load MtheGApps, I cannot get past encryption in TWRP. TWRP prompts for a password, but I have no idea what that might be. I've read (somewhere) that the password is the pin I defined for my opening screen in Lineage, which I know. That does not work. I also have fingerprint enabled and have defined a print. The pin and finger get me into lineage without any trouble.
All of this is on slot A. Slot B seems to holds an older T-Mobile ROM, which I booted at some point. Not really interested in that, so eventually, I'll want to know what to do with that slot. I'll also want to root Lineage.
Maybe I should start from scratch? ( not sure how to get back there). Any guidance greatly appreciated!
Click to expand...
Click to collapse
OhioYJ said:
Your version of TWRP could be part of the problem. This is the thread for the official maintainer, use these builds of TWRP even though they say "unofficial." Q is for Android 10, Pie is for Android 9. For LOS 17, download the 3.3.1-32 versions. Remember you are booting the img files, the Q version, you use the same installer for both versions of Android.
To go to LOS 17 you need Android 10 on both slots. Doesn't matter how you get there. 10.3.1 is the latest version from OP, so there is technically a newer version than what you downloaded.
Fastboot ROM page.
You have a few options:
- You can also update using TWRP, and flashing the OTA full ZIP. Just be aware, you need to flash the OTA zip, flash the TWRP installer, reboot to recovery, flash the OTA zip again. Reboot. At this point the phone won't boot, it will just go to stock recovery, wipe data (factory reset), and it should boot up into OOS. Then boot your TWRP img, install TWRP, boot to recovery, start the LOS install I linked to above.
- Use the fastboot ROM. Again as above this will require TWRP installation, etc.
- My least favorite, the MSMTool. My opinion, is the MSMTool should always be a last resort as it locks your bootloader. You can unlocking afterwards again, but if something goes wrong, it could be a bad thing. I just always try every other option before jumping to this one.
As for Gapps, I just use OpenGapps. At this point you don't even have to mess with their test or beta folders anymore. You can just select it from their homepage, and download Android 10 gapps. OpenGapps page, the 6T is Arm64, LOS17 is Android 10, I always use Nano
As for Magisk, yes 20.3. The uninstaller you don't really need as this will essentially be a clean install. The 20.3 zip will also install the Magisk Manager app.
Hopefully that clears some things up?
Click to expand...
Click to collapse
It did clear some things up, thank you. However, I still end up at the Qualcomm CrashDump Screen of Death. this happens at the very end of the process, after the second load of LOS 17 and TWRP Installer, while rebooting to recovery from the TWRP .img. I'm going to list every step I take and all of the files I use. There are a couple of places where I'm not sure I'm doing the right thing, and/or the outcome of that step is not as expected.
1. Download all of files:
TWRP Q .img
TWRP Installer
OP OS 10.3.1 Fastboot ROM
lineage-17.1-20200223_133843-UNOFFICIAL-fajita.zip
First step is to flash Oxygen 10 and TWRP Recovery to both slots. I unpack the OOS Fastboot ROM zip on my laptop, boot to my 6t's bootloader and connect that to my laptop. After making sure ADB/Fastboot sees the device, I run "flash-all.bat" by clicking on it. This seems to load OOS just fine. The phone boots to OOS and I turn the phone off.
(I've done all of this several times and there are variants: I've tried becoming a developer and turning on the advanced boot options in OOS 10, but I don't think that matters, as long as I can get back to the bootloader or recovery. Let me know if that is incorrect).
At this point, your instructions say
"reboot to recovery, flash the OTA zip again."
I've tried moving the OOS fastboot zip file to my phone and flashing from TWRP, but that doesn't work. I get an error complaining of wrong format. It seems to me, a Fastboot ROM can only be flashed from adb/flashboot. Is that correct?
Therefore, I have been going back to the bootloader and re-flashing OOS 10 from adb fastboot again. After this step, contrary to your guidance above, the phone does indeed boot directly to OOS.... A loooong, what seems to be initial boot. I then turn off the phone.
I reboot to recovery again - and it is now the stock recovery - so I follow your guidance to factory reset from there. It does boot into OOS, and it is another looonnng boot. I then turn off the phone, return to the bootloader, flash the TWRP .img, install the TWRP installer and move on to the LOS 17 process linked to above.
Though I'm not sure it's necessary, I follow these steps from the beginning of he process:
Install 10.3.0 fastboot ROM again to start over, boot it once. Just to make sure everything is good.
- Reboot to fastboot.
- Boot the Q image of TWRP.
- Run the TWRP installer, reboot to recovery
Everything seems to work well, so I follow these steps, all from TWRP:
- Factory reset (This is the slider at the bottom in the wipe menu).
- Format data. (This is the button that says Format data in the wipe menu)
- Do NOT wipe cache, do not Wipe system, do NOT Wipe Dalvik / ART, do not add anything else, Just Factory Reset and Format Data. After doing those two Reboot to Recovery one more time. You must do this after formatting data.
I do all of the steps below, with no problems:
- Now transfer Lineage and TWRP to your phone, Windows / Linux should see TWRP fine as a media device when plugged in.
- Install Lineage
Just a note at this point, to highlight that this is done from TWRP, as opposed to using adb fastboot as with OOS10. This is what I've done with ROM's in the past; the fastboot ROM thing is new to me.
Next, I
- Run the TWRP Installer.
- Reboot to Recovery.
- Install Lineage (You need Lineage on both slots, so yes run it again)
- Run the TWRP Installer (yes again).
- Reboot to Recovery
This is where things go bad. In this reboot to recovery, the TWRP splash screen sits there for a long time, and then the Qualcomm CrashDump Screen of Death (QCDSoD) appears. If I hold the power button down for long time, the QCDSoD disappears and the phone reboots and starts to load LOS. Then, it switches to TWRP splash screen, and as before, end with the QCCDSoD.
I've been through this entire process maybe three times. Always the same outcome (you know what they say, about doing the same things and expecting different results...)
I did note, that on the OS Fastboot ROM page, there was some discussion of "Branded" phones, specifically T-Mobile phones. When I first got this phone, after loading TWRP, I swapped active slots. On the new, active slot, I booted the phone, and it was to a T-Mobile ROM. Not sure if that plays any part in all of this.
Appreciate your hanging with me. I'm going to rest my fingers

Is this a TMobile 6T?

NoBodyUKnow said:
OK, finally getting back to this...
I currently have LOS 16 and twrp fajita 3.2.3-2 onboard, as well as Magisk Manager (but not magisk - shows red question mark and "magisk not installed" in Magisk mgr.).
I want to go to LOS 17, load gapps and root to remove redundant apps.
First, I need to I need to get back to stock ROM before anything else, right? I've downloaded 10.0.1-OnePlus6TOxygen_34_OTA_041_all_1911142208_af338-FASTBOOT.zip
I'll also need LOS 17.X, correct? I have this: lineage-17.1-20200104_020517-UNOFFICIAL-fajita.zip
I'll need the Q version of TWRP, right? Still looking for that. Is this version of TWRP specific to the OP 6T, or specific to Android 10? Other?
I'll need the ARM64 , Android 10 version of mindthegapps (mindthegaps supports A/B architecture, right?). Still looking for that. I've found "GApps", but not "mindthegapps". There's also "bitgapps". Should I consider this?
I'll need magisk manager. magisk uninstaller and magisk, correct? I have MagiskManager-v7.5.1.apk, Magisk-v20.3.zip and Magisk-uninstaller-20200110.zip. Not sure if these are the right ones..
I think the main thing I need help with is getting back to the stock ROM. Guessing that would be OOS10. Once I get there, there are lots of instructions around on how to get to LOS 17.
Thank you!!
Click to expand...
Click to collapse
OhioYJ said:
It's like that because you didn't format data. Also you can't have OOS on one slot, and an AOSP ROM on another slot.
Here's the LOS install instructions I've been posting / using for clean / first installs.
Note the part in the begining about using 9.0.17 or 10.3.1 depending on which version of LOS you are using. Don't mix Android 10 and 9. Any questions ask.
Also note when Magisk is flashed those instructions. You're close, just missed a couple steps.
Click to expand...
Click to collapse
NoBodyUKnow said:
Hello All,
I picked up a OP 6T from Amazon and would like to run Lineage 16.0 and load GApps, along with a number of other apps. I have TWRP Fajita (bluespark) installed and can boot to it. I also have Lineage 16 flashed as my ROM on Slot A, to which I can also successfully boot. I have Mind the GApps .zip ARM64 version on internal storage root.
Prior to flashing Lineage, I also loaded Magisk, which is still there as an app.
In trying to load MtheGApps, I cannot get past encryption in TWRP. TWRP prompts for a password, but I have no idea what that might be. I've read (somewhere) that the password is the pin I defined for my opening screen in Lineage, which I know. That does not work. I also have fingerprint enabled and have defined a print. The pin and finger get me into lineage without any trouble.
All of this is on slot A. Slot B seems to holds an older T-Mobile ROM, which I booted at some point. Not really interested in that, so eventually, I'll want to know what to do with that slot. I'll also want to root Lineage.
Maybe I should start from scratch? ( not sure how to get back there). Any guidance greatly appreciated!
Click to expand...
Click to collapse
OhioYJ said:
Is this a TMobile 6T?
Click to expand...
Click to collapse
After a little research, it appears that it is a T-Mobile variant: the A6013. And, well.... I guess this may be a clue...
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I'm guessing this is the source of my problem. Do you agree?
My research suggests the T-Mobile variant can be converted to "Global", but I'm wondering if it may just be more efficient to return this phone to Amazon with OOS 9 or 10 on it and buy the Global variant (A6010?)

NoBodyUKnow said:
I'm guessing this is the source of my problem. Do you agree?
My research suggests the T-Mobile variant can be converted to "Global", but I'm wondering if it may just be more efficient to return this phone to Amazon with OOS 9 or 10 on it and buy the Global variant (A6010?)
Click to expand...
Click to collapse
Yeap, you have a TMobile 6T. A TMobile 6T is not a Global 6T, and even a "converted" TMobile 6T is not a Global 6T. They still require special instructions at points, and do different things. The instructions above will work perfect for a Global 6T. They (TMobile 6Ts) tend to be cheaper, but tend to have some gotchas with them.

OhioYJ said:
Yeap, you have a TMobile 6T. A TMobile 6T is not a Global 6T, and even a "converted" TMobile 6T is not a Global 6T. They still require special instructions at points, and do different things. The instructions above will work perfect for a Global 6T. They (TMobile 6Ts) tend to be cheaper, but tend to have some gotchas with them.
Click to expand...
Click to collapse
Thanks! I like the 6T, so I guess I'm gonna get a Global. I'll get back to this, when I have that phone in-hand. Will slowly chug away on my Moto G6 until then. More to come...

Oh... Should I have any trouble putting an Oxygen 9 ROM ( or 10) on both slots without TWRP, before sending it back? Guess I'll need to re-lock the bootloader too.

NoBodyUKnow said:
Oh... Should I have any trouble putting an Oxygen 9 ROM ( or 10) on both slots without TWRP, before sending it back? Guess I'll need to re-lock the bootloader too.
Click to expand...
Click to collapse
You could always use a T-Mobile MSM Tool ?
Link
MSM Tools are usually my last resort as they relock the bootloader, but in this case, it's what you are after.

OhioYJ said:
Yeap, you have a TMobile 6T. A TMobile 6T is not a Global 6T, and even a "converted" TMobile 6T is not a Global 6T. They still require special instructions at points, and do different things. The instructions above will work perfect for a Global 6T. They (TMobile 6Ts) tend to be cheaper, but tend to have some gotchas with them.
Click to expand...
Click to collapse
NoBodyUKnow said:
Thanks! I like the 6T, so I guess I'm gonna get a Global. I'll get back to this, when I have that phone in-hand. Will slowly chug away on my Moto G6 until then. More to come...
Click to expand...
Click to collapse
OK... Back this this!
This is the what I ordered to replace the T-Mobile variant I had. It arrived yesterday. Is this the "global" model, or did I again purchase the wrong phone?
This phone is a dual sim, so it is definitely different from the one I had. Model number from System Info is A6010_41_200115.
Behavior is exactly as before. First, I'm loading the Android 10 version of the OP Oxygen Rom. After the second install of the OTA as advised below...
- You can also update using TWRP, and flashing the OTA full ZIP. Just be aware, you need to flash the OTA zip, flash the TWRP installer, reboot to recovery, flash the OTA zip again. Reboot. At this point the phone won't boot, it will just go to stock recovery, wipe data (factory reset), and it should boot up into OOS. Then boot your TWRP img, install TWRP, boot to recovery, start the LOS install I linked to above.
...rather than going directly to stock recovery, the phone DOES boot to OOS. To get to recovery, I go through the minimal necessary setup steps to access the settings, so I can activate developer mode, enable advanced reboot and enable USB debug. Then I reboot to recovery (stock), perform the wipe and reset. I then reboot to Fastboot and flash the TWRP .img using adb/fastboot on my PC. I then txfr the TWRP install .zip to root and install that. All of this SEEMS to go well, but again, there's that unexpected reboot to OOS as highlighted above.
Next, I move on to the LOS 17 load.
This goes well, until I complete the second load of TWRP Installer and reboot to recovery. When I execute that step, the TWRP splash screen appears and stays there for 30-45 seconds, and then turns to the QualComm CrashDump Mode Screen.
:crying:
I guess the first thing is to determine, If I have the correct phone ....

NoBodyUKnow said:
OK... Back this this!
This is the what I ordered to replace the T-Mobile variant I had. It arrived yesterday. Is this the "global" model, or did I again purchase the wrong phone?
This phone is a dual sim, so it is definitely different from the one I had. Model number from System Info is A6010_41_200115.
Behavior is exactly as before. First, I'm loading the Android 10 version of the OP Oxygen Rom. After the second install of the OTA as advised below...
- You can also update using TWRP, and flashing the OTA full ZIP. Just be aware, you need to flash the OTA zip, flash the TWRP installer, reboot to recovery, flash the OTA zip again. Reboot. At this point the phone won't boot, it will just go to stock recovery, wipe data (factory reset), and it should boot up into OOS. Then boot your TWRP img, install TWRP, boot to recovery, start the LOS install I linked to above.
...rather than going directly to stock recovery, the phone DOES boot to OOS. To get to recovery, I go through the minimal necessary setup steps to access the settings, so I can activate developer mode, enable advanced reboot and enable USB debug. Then I reboot to recovery (stock), perform the wipe and reset. I then reboot to Fastboot and flash the TWRP .img using adb/fastboot on my PC. I then txfr the TWRP install .zip to root and install that. All of this SEEMS to go well, but again, there's that unexpected reboot to OOS as highlighted above.
Next, I move on to the LOS 17 load.
This goes well, until I complete the second load of TWRP Installer and reboot to recovery. When I execute that step, the TWRP splash screen appears and stays there for 30-45 seconds, and then turns to the QualComm CrashDump Mode Screen.
:crying:
I guess the first thing is to determine, If I have the correct phone ....
Click to expand...
Click to collapse
So if I get this right, you're trying to install LOS 17 on your OnePlus 6T which is running OOS 10? Also you have the international variant.

DarthVader said:
So if I get this right, you're trying to install LOS 17 on your OnePlus 6T which is running OOS 10? Also you have the international variant.
Click to expand...
Click to collapse
He's got the China version this time, which I believe is minus a couple LTE bands (not a deal breaker necessarily, but not ideal). Does this change his install process since it would have originally had HOS on it?

Yes, but...
DarthVader said:
So if I get this right, you're trying to install LOS 17 on your OnePlus 6T which is running OOS 10? Also you have the international variant.
Click to expand...
Click to collapse
Yes, my goal is to have Lineage OS 17 (Android 10/Q) on a OnePlus 6T. Hopefully on the phone I have now, but on whatever 6T variant I need to get. I like the phone.
I tried before with a T-Mobile version of the A6013, and I could not get there. @OhioYJ offered some assistance and suggested the problem was the phone being a T-Mobile variant; that I needed a "Global" version. Therefore, I returned that phone and purchased an "International" A6010_41_200115. Is this the Global variant?
I've followed the processes detailed above on both phones and wound up at exactly the same place: The QUALCOMM CrashDump Mode screen. This happens after the second install of TWRP, when I reboot to Recovery.
In both cases, the phones came with OOS 9, and I'm updating to OOS10 via the Fastboot ROM before proceeding to LOS 17.
Is it possible to get to LOS 17 on the phone I have now?
Thanks!!!

OhioYJ said:
He's got the China version this time, which I believe is minus a couple LTE bands (not a deal breaker necessarily, but not ideal). Does this change his install process since it would have originally had HOS on it?
Click to expand...
Click to collapse
This would be the global variant, wouldn't it? An A6013 with both GSM and CDMA...?

Mine is an A6013, I checked the phone and original box. I bought mine straight from OnePlus. TMobile ones will only have a single IMEI. The "Real" 6T will be dual sim and have two separate, unique IMEI numbers.

NoBodyUKnow said:
This would be the global variant, wouldn't it? An A6013 with both GSM and CDMA...?
Click to expand...
Click to collapse
Do this. Download the latest OOS 10.3.2 from OnePlus's Website. As well as latest Unofficial TWRP Image and Installer. Grab the Q Image, not the Pie one. The latest TWRP version as of now is 3.3.1-32. Now Boot to TWRP. Flash the OOS ZIP File and then TWRP Installer. Reboot to Recovery and again flash the OOS ZIP and TWRP Installer. Once that's done, you can once again Reboot to Recovery. Now, flash the Latest LineageOS 17.1 ZIP file and TWRP Installer. Reboot to Recovery one last time and flash Gapps. After that Format Data and Reboot System. You should now hopefully boot into Android.

DarthVader said:
Do this. Download the latest OOS 10.3.2 from OnePlus's Website. As well as latest Unofficial TWRP Image and Installer. Grab the Q Image, not the Pie one. The latest TWRP version as of now is 3.3.1-32. Now Boot to TWRP. Flash the OOS ZIP File and then TWRP Installer. Reboot to Recovery and again flash the OOS ZIP and TWRP Installer. Once that's done, you can once again Reboot to Recovery. Now, flash the Latest LineageOS 17.1 ZIP file and TWRP Installer. Reboot to Recovery one last time and flash Gapps. After that Format Data and Reboot System. You should now hopefully boot into Android.
Click to expand...
Click to collapse
@OhioYJ
I did as you suggested. As with my first phone (a T-Mobile variant), when I perform the reboot to recovery after flashing LOS 17 and TWRP, the TWRP intro screen appears for a long time ( 30 seconds + ). When it finally disappears, the Qual. Crash Dump Screen appears. By holding the power button for about 10 seconds, the phone reboots to LOS. After booting, I can navigate within LOS, but a warning flashes for a few milliseconds, about every ten seconds. I was able to capture a screenshot of the warning from the video I just linked to:
This continues to occur: if I try to reboot to recovery, the TWRP screen appears, lingers and then changes to the Qual Crash Dump screen. At this point, when I hold the power button for about 10 seconds, the phone boots to LOS. When LOS is running, the warning continues to appear at regular intervals.
Thinking I may just go for another phone, preferably one that supports GSM and CDMA, but at least a US, non-T-mobile phone with all of the GSM Bands. They are a little pricey though.
Happy to try other things with this phone though, if it might help further understanding of these phones.

Looking for w Breakthrough...
@OhioYJ @DarthVader
Gentleman,
I hope this update finds you and your loved ones safe, in this scary time.
I am still trying to get LOS 17 on my OP 6T, and I Keep ending up at the same place.: Qualcomm CrashDump Screen. l'm using the fastboot ROM's, and using those does not completely align with this part of OhioYJ's instructions:
- You can also update using TWRP, and flashing the OTA full ZIP. Just be aware, you need to flash the OTA zip, flash the TWRP installer, reboot to recovery, flash the OTA zip again. Reboot. At this point the phone won't boot, it will just go to stock recovery, wipe data (factory reset), and it should boot up into OOS. Then boot your TWRP img, install TWRP, boot to recovery, start the LOS install I linked to above.
OhioYJ mentions "flashing the OTA Full .zip". The Fastboot ROM's have "OTA" in their labels and they are .zip files, but they will not flash in TWRP. They error out. They do run - and flash - from the bootloader, and this is what I've been doing. I'm guessing there are other, TWRP flasheable .zip files for the 6T. Maybe I should try those? Can't seem to find them. If so, can you point them out to me, please?
I humbly ask that you review this thread, looking closely at your guidance and my responses. I keep ending up at the same place - the Qualcom CrashDump Mode Screen.
Thanks!
NBUK

Help! PO6T stuck in fastboot mode after trying to flash TWRP

Hey everabody,
I tried to install TWRP on my OP6T, using the guide from lineage OS (https://wiki.lineageos.org/devices/fajita/install) but after the fifth Step in "Temporarily booting a custom recovery using fastboot", my device stuck into fastboot logo and after restarting the phone, i wasn´t able to reboot the OOS system or to get into TWRP, I could see only the warning, that the bootloader is unlocked or the fastboot mode. I tried several other guides to install TWRP on my phone, but the all lead to the same problem. I also tried to relock the bootloader to get rid of the warning screen, but that also didn´t work.
Than, I tried to flash stock ROM with the Tool All in one (https://forum.xda-developers.com/oneplus-6t/how-to/tool-tool-one-driversunlocktwrpfactory-t3860279) but I got an Error (something about personal data) now I am able to start the Phone, but it remains in the starting animation of OOS.
Now I just want my phone to work again, with OOS or Lineage OS. Please help me. Best reagards.
Update : phone restarts after flashing stock again, but play store does not download anything. I still want to get Lineage OS, twrp...

Wow... It's scary how wrong those instructions are. Those need to be changed. Don't follow those. They will not work for this device.
These instructions will help you get Lineage on your 6T if thats what you want to do. It's the same process LOS 17 or 16. Just make sure if you are doing LOS 16, start with OOS 9.0.17, if you are doing LOS 17, start with 10.3.2 (latest OOS). Don't mix Android 9 and 10. When booting TWRP from fastboot boot the correct TWRP img, Pie for Android 9, Q for Android 10. The installer works for either.
At this stage you will need to restore your phone. Replacing the boot partition would likely make it boot again. Some people have posted this. I would go this route if you need to get data off of it. If you don't care about data (hopefully you backed up already) I would use the fastboot ROM at this point to start over. OnePlus 6T Fastboot ROM thread.
Once you have that, install TWRP. Funk Wizard's guide's are always good for this stuff. It's basically boot the TWRP img from fastboot, then run the installer, reboot to recovery, install Magisk if running OOS (otherwise TWRP will be replaced on boot). Magisk Link
Any questions ask.

Thank you very much
OhioYJ said:
Wow... It's scary how wrong those instructions are. Those need to be changed. Don't follow those. They will not work for this device.
These instructions will help you get Lineage on your 6T if thats what you want to do. It's the same process LOS 17 or 16. Just make sure if you are doing LOS 16, start with OOS 9.0.17, if you are doing LOS 17, start with 10.3.2 (latest OOS). Don't mix Android 9 and 10. When booting TWRP from fastboot boot the correct TWRP img, Pie for Android 9, Q for Android 10. The installer works for either.
At this stage you will need to restore your phone. Replacing the boot partition would likely make it boot again. Some people have posted this. I would go this route if you need to get data off of it. If you don't care about data (hopefully you backed up already) I would use the fastboot ROM at this point to start over. OnePlus 6T Fastboot ROM thread.
Once you have that, install TWRP. Funk Wizard's guide's are always good for this stuff. It's basically boot the TWRP img from fastboot, then run the installer, reboot to recovery, install Magisk if running OOS (otherwise TWRP will be replaced on boot). Magisk Link
Any questions ask.
Click to expand...
Click to collapse
Dear OhioYJ, thank you very much.
Before starting the flashing process, I want to ask a few questions.
1. While running the adb& fastboot setup, the interface (the blue one) said that 0 files were copied. In a YT video I saw the same programm, but 4 files were copied in the video. Will adb and fastboot be disturbed by that?
2. after rebooting the phone (and editing my first post), I made a factory reset in the setting of OOS. Does this change anything?
3. in Funk Wizard´s source for downloading the TWRP image (official TWRP site) i can find only a few versions of the img and the Zip, but there are no specifications if they are made for Pie or Q, as OhioYJ mentioned in his answer. Is there any ploblem?
4. for installing Magisk, I visited the Thread and downloaded the latest stable version. Is that correct (no specific version for the device or something, I just want to make sure not to mix the whole thing up again)
thank you for your help

MedusaGnom said:
1. While running the adb& fastboot setup, the interface (the blue one) said that 0 files were copied. In a YT video I saw the same programm, but 4 files were copied in the video.
Click to expand...
Click to collapse
As long as the files are copied, I guess it doesn't matter. You can see the image below I did as an example just now for this post, but I'm used to a count as well. I use Linux though. As long as the files move, don't worry about it.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
MedusaGnom said:
2. after rebooting the phone (and editing my first post), I made a factory reset in the setting of OOS. Does this change anything?
Click to expand...
Click to collapse
No. In fact when going between AOSP, like LOS, and OOS you'll have to use OOSs recovery to to do a factory reset to get the phone to boot.
MedusaGnom said:
3. in Funk Wizard´s source for downloading the TWRP image (official TWRP site) i can find only a few versions of the img and the Zip, but there are no specifications if they are made for Pie or Q, as OhioYJ mentioned in his answer. Is there any ploblem?
Click to expand...
Click to collapse
Glad you asked. Don't use the official version. It's out of date and will cause problems. This is the official maintainers thread. Download the main versions there. The install guide talks about installing to recover ramdisk, which you can do, but it's still perfectly fine to boot the image, and run the installer like normal. Using the installer is what I always do as it's easier.
MedusaGnom said:
4. for installing Magisk, I visited the Thread and downloaded the latest stable version. Is that correct (no specific version for the device or something, I just want to make sure not to mix the whole thing up again)
Click to expand...
Click to collapse
You are correct. 20.3 is the latest stable version. That's all you need. 20.3 will also install Magisk Manager 7.5.1 the latest version of the Manager as well so you don't even need to download that. I will recommend two additional things:
MagiskHide Props Config
UPDATE-Busybox.Installer.v1.31.1-ALL-signed.zip (In the first post, required for the MagiskHide Props to work)
MagiskHide Props Config will make it so you pass safetynet and still come up certified in the play store. You will need a terminal emulator to activate the props module. You can use anyone you prefer, I personally use this one.

I need an advice
OhioYJ said:
As long as the files are copied, I guess it doesn't matter. You can see the image below I did as an example just now for this post, but I'm used to a count as well. I use Linux though. As long as the files move, don't worry about it.
No. In fact when going between AOSP, like LOS, and OOS you'll have to use OOSs recovery to to do a factory reset to get the phone to boot.
Glad you asked. Don't use the official version. It's out of date and will cause problems. This is the official maintainers thread. Download the main versions there. The install guide talks about installing to recover ramdisk, which you can do, but it's still perfectly fine to boot the image, and run the installer like normal. Using the installer is what I always do as it's easier.
You are correct. 20.3 is the latest stable version. That's all you need. 20.3 will also install Magisk Manager 7.5.1 the latest version of the Manager as well so you don't even need to download that. I will recommend two additional things:
MagiskHide Props Config
UPDATE-Busybox.Installer.v1.31.1-ALL-signed.zip (In the first post, required for the MagiskHide Props to work)
MagiskHide Props Config will make it so you pass safetynet and still come up certified in the play store. You will need a terminal emulator to activate the props module. You can use anyone you prefer, I personally use this one.
Click to expand...
Click to collapse
Dear OhioYJ,
thank you for your help.
Right now i´m looking for the files you recommended in your fourth answer, but i can´t find MagiskHide Props Config. (could you give me a download link?)
Since my device decided to work again and even the Playstore started downloading, I am not sure if I want to risk new problems , than´s why I need an advice: is Lineage OS worth the risk? What could go wrong and is there a possibility to brick the phone irretrievable?
Is there a way just to get twrp and Lineage without rooting the device permanently, installing magisk etc? I need to use some banking apps, so i would have to unroot the phone after installing Lineage.
Is it dangerous to lock the bootloader again?
I´m sorry for my questions, but i do not have much experiece with this stuff, I only installed Lineage OS on the oneplus 1 and 2, what was very easy. Thank you very much.

MedusaGnom said:
Right now i´m looking for the files you recommended in your fourth answer, but i can´t find MagiskHide Props Config. (could you give me a download link?)
Click to expand...
Click to collapse
It's at the bottom of his first post. It's attached to the post.
MedusaGnom said:
wrong and is there a possibility to brick the phone irretrievable?
Click to expand...
Click to collapse
Highly unlikely, but anything is possible I guess. With OnePlus devices you have the MSMTool, which while I've frequently on here said should be a last resort, works very well. This will work without recovery or fastboot. While you have a working phone though, make sure you use FunkWizard's guide to backup your modem. <-- This is key if you are going to play with your phone, and install ROMs and such. Odds are you are never going to need them, but its the one unique thing to your device and it will save you if you ever happen to actually mess that up. Back these up some where safe (not on the phone).
MedusaGnom said:
than´s why I need an advice: is Lineage OS worth the risk?
Click to expand...
Click to collapse
Everyone must form their own opinion, tolerance level. The OS is very stable. Personally I don't own or buy a device that doesn't have LOS support (Before LOS it was CM). I don't even give a device to my son that doesn't have LOS on it. It gives me much more control over my privacy, data, and information. Even my battery life has been great, typically averaging 7-8 hours of SOT over 48 hours.
MedusaGnom said:
Is there a way just to get twrp and Lineage without rooting the device permanently, installing magisk etc? I need to use some banking apps, so i would have to unroot the phone after installing Lineage.
Click to expand...
Click to collapse
You don't have to root to have Lineage. Depends on the banking app, but some won't work without hiding the fact your bootloader is unlocked anyways. So you may not be able to run your app just running Lineage unrooted anyways. Only one way to find out I guess. I generally have as few apps as possible. I do know the few times I've used my banking app, it's worked with Magisk and that Module I've linked to above.
MedusaGnom said:
Is it dangerous to lock the bootloader again?
Click to expand...
Click to collapse
If you phone isn't completely stock, yes. If you are absolutely sure everything is stock, then it's not a problem. MSM Tool will put everything back as it was out of the box and relock the bootloader for you. Relocking / Unlocking the bootloader wipes the phone. Back everything up.
MedusaGnom said:
I only installed Lineage OS on the oneplus 1 and 2, what was very easy.
Click to expand...
Click to collapse
It's not that bad once you get it down, and get it converted over. It's just not like the "old days" where many devices were similar wipe caches, it was ok to wipe system, flash ROM, etc. I have a new tablet and you can't flash the those modules above in TWRP otherwise it refuses to boot again. Every device has something different. Once you're running LOS, updating is pretty straight forward:
- Reboot to recovery
- Flash Lineage.
- Flash TWRP Installer
- Reboot to Recovery
- Flash Gapps. (Assuming you use them, if you installed them once you must continue to install them or do a clean instal)
- Flash Magisk. (If you use it)
- Reboot to system.
- No loss of data, or anything.

my plan
OhioYJ said:
It's at the bottom of his first post. It's attached to the post.
Highly unlikely, but anything is possible I guess. With OnePlus devices you have the MSMTool, which while I've frequently on here said should be a last resort, works very well. This will work without recovery or fastboot. While you have a working phone though, make sure you use FunkWizard's guide to backup your modem. <-- This is key if you are going to play with your phone, and install ROMs and such. Odds are you are never going to need them, but its the one unique thing to your device and it will save you if you ever happen to actually mess that up. Back these up some where safe (not on the phone).
Everyone must form their own opinion, tolerance level. The OS is very stable. Personally I don't own or buy a device that doesn't have LOS support (Before LOS it was CM). I don't even give a device to my son that doesn't have LOS on it. It gives me much more control over my privacy, data, and information. Even my battery life has been great, typically averaging 7-8 hours of SOT over 48 hours.
You don't have to root to have Lineage. Depends on the banking app, but some won't work without hiding the fact your bootloader is unlocked anyways. So you may not be able to run your app just running Lineage unrooted anyways. Only one way to find out I guess. I generally have as few apps as possible. I do know the few times I've used my banking app, it's worked with Magisk and that Module I've linked to above.
If you phone isn't completely stock, yes. If you are absolutely sure everything is stock, then it's not a problem. MSM Tool will put everything back as it was out of the box and relock the bootloader for you. Relocking / Unlocking the bootloader wipes the phone. Back everything up.
It's not that bad once you get it down, and get it converted over. It's just not like the "old days" where many devices were similar wipe caches, it was ok to wipe system, flash ROM, etc. I have a new tablet and you can't flash the those modules above in TWRP otherwise it refuses to boot again. Every device has something different. Once you're running LOS, updating is pretty straight forward:
- Reboot to recovery
- Flash Lineage.
- Flash TWRP Installer
- Reboot to Recovery
- Flash Gapps. (Assuming you use them, if you installed them once you must continue to install them or do a clean instal)
- Flash Magisk. (If you use it)
- Reboot to system.
- No loss of data, or anything.
Click to expand...
Click to collapse
Thank you very much!
I will write down what i´m going to do, would be great if you would give it a savety check.
Status:
- I unlocked the bootloader and enabled usb debugging and advanced reboot
-I installed the OP drivers and adb and fastboot on my pc
- I downloaded the the fajita twrp image and the twrp installer by mauronfrio, Magisk-v20.3 , UPDATE-Busybox.Installer.v1.31.1-ALL-signed.zip and MagiskHidePropsConf-v5.2.4 on my pc
- I downloaded the official Lineage Os 17 for fajita on my pc
next steps (assuming)
- download gapps
- set swipe to unlock the phone
- store the twrp image, installer, Magisk, magisk hide , UPDATE-Busybox.Installer.v1.31.1-ALL-signed.zip, gapps and the lineage zip on my internal storage
- boot into fastboot mode
- fastboot flash twrp image
- fastboot boot into recovery
- flash (now in twrp) twrp installer
- reboot recovery
- create nandroid backup
- flash magisk and the other 2 files relating to magisk
- gain root access
- reboot recovery
- wipe system partition
- flash lineage os 17
- flash twrp installer
- flash gapps
- create a backup
- reboot system
further targets: undo root
optional: clean install gapps
Thank you very much

OhioYJ said:
Wow... It's scary how wrong those instructions are. Those need to be changed. Don't follow those. They will not work for this device.
These instructions will help you get Lineage on your 6T if thats what you want to do. It's the same process LOS 17 or 16. Just make sure if you are doing LOS 16, start with OOS 9.0.17, if you are doing LOS 17, start with 10.3.2 (latest OOS). Don't mix Android 9 and 10. When booting TWRP from fastboot boot the correct TWRP img, Pie for Android 9, Q for Android 10. The installer works for either.
At this stage you will need to restore your phone. Replacing the boot partition would likely make it boot again. Some people have posted this. I would go this route if you need to get data off of it. If you don't care about data (hopefully you backed up already) I would use the fastboot ROM at this point to start over. OnePlus 6T Fastboot ROM thread.
Once you have that, install TWRP. Funk Wizard's guide's are always good for this stuff. It's basically boot the TWRP img from fastboot, then run the installer, reboot to recovery, install Magisk if running OOS (otherwise TWRP will be replaced on boot). Magisk Link
Any questions ask.
Click to expand...
Click to collapse
Thank you so much for covering this topic properly. I'm just now rejoining the Android world after having to use iPhone for over a year. Still had my 6t floating around, almost brand new and trying to quickly Google my way to getting TWRP and Lineage installed. The install instructions on the Lineage site are incredibly wrong. After going to that link and tweaking a bit it installed perfectly.