Gost random touch, device is like a crazy horse :( - ZTE Axon 7 Mini Questions & Answers

Ok I got the EU (by the plug) version of g&arbest, I found a way to install TWRP due to drivers of nother tablet for lenovo, but still qualcomm.
I flashed Lineage end AOKP and both give me a problem of ghost touch, it's like someone else is touching he screen, with lineage I can barely write my account.
Since it happens with both rom, I'm afraid it's a TWRP problem (could it be? I'm a little newbye, I alway being lucky).
I pasked for a flashable rom of B13 EU with no success, and in the stock rom thread link to original recovery were removed since they say it could brick flashing it, so I cant' install the official B13 stock by SD since It can be installed only by stock recovery.
Any suggestion on how to return to complete stock to see if is it a faulty (actually everything was fine before flashin TWRP) phone or is just a rom problem (all the rom are for USA phones, but every EU says that they works well on theyr phone! But I forgot to make a TWRP with the B13 before flashing lineage).
Thank you and sorry If I'm keeping asking, but is a very BEAUTIFUL phone with beautiful screen and would be a great backup phone, I bought for less than $100 I would like to use it, especially for NFC payment!
Thank you
Greetins (and happy easter)

Related

Soft-Bricked S4 by Flashing Different Version Rom

Hi everyone,
Before blasting away with comments as to why I would do this, here's my story,
I live in Canada and just brought home a i9508, a China variant of the S4. It belonged to my dad and he didn't want it so I just took it. The i9508 doesn't have Play Store, and it doesn't work on Canadian 3G network.
So to me, the phone is useless right off the start (don't intend on selling it either, who wants it?) So I had 2 options:
1) Leave the phone as it is, and probably use it once every 1-2 years when I visit HK
2) Flash custom roms on it fully aware of the risk it will have so that there's a possibility I can make it more usable
So in the end I went with option 2.
I followed a guide and flashed TWRP for i9505 using Odin onto the phone, and used TWRP to install chainfire SU, and it actually worked (but SU wouldn't open because some sort of security on the phone is blocking it)
Next step, I downloaded the CM version for i9505 and flashed onto the phone, and that worked too. Only problem I've encountered was that the phone would only boot after a fresh install. If I installed CM, turned the phone off after the initial start up, the phone wouldn't boot pass the Samsung logo.
Up until this point, I didn't make a backup, because of my arrogance, cause I have available a copy of the official firmware, in case anything happens.
So I figured at this point, maybe if I restore the original firmware, and try the whole process again, the custom rom would work. So I went into Odin, flash the firmware with PDA, and failed. It just wouldn't work. After retrying it a couple of times, and downloading different updates of the firmware, nothing worked. Only thing working right now is, I can get into Download mode, and I can get into TWRP recovery (but for some reason, I can't flash the zips that I've adb pushed onto the phone, zip can't open)
For me, if it can't be fixed, then it's really SOL. But if there's a way to fix it, I'm open to testing anything people have in mind, cause afterall, this phone is paper weight either way. I'm interested in seeing if I could enable 3G by flashing a i9505 radio, despite warnings, although, I've never actually came across a thread where someone had actually tried it before.
Either way, if someone has any idea on how to fix the phone, and wouldn't mind sharing it, that'll be greatly appreciated.
Working
I can get into Download mode, but Odin is failing (if you need the error please let me know and I'll post it)
I can get into TWRP recovery, but can't flash files
I can get into adb
This isnt the correct forum for your phone. XDA don't follow clones
Unfortunately a section for i9508 doesn't exist, so I figure the closest one would be i9505.
Anyhow, if someone has an idea of how to fix it, I'm more than happy to do testing on it, like flashing other roms or radios.

Can't return to stock in I8730 after installing cyanogen 11 (Galaxy Express)

Hello,
I'm from Brazil and own a Galaxy Express. Used szezso tutorial to install cyanogen 11 on it.
http://forum.xda-developers.com/showthread.php?t=2792157
Due to GPS instability, I was inclined to use warranty, so I had to return to stock rom.
And here begins the trouble. After goin back to the stock rom, my cellphone went mute (notification, ring, call, recording and media play), I can make calls, it has signal, but I cant hear the person on the other side. The cellphone will eventually hang when entering in standby mode, also. It hangs with the screen off and I have to remove battery.
The stock rom I'm trying to install is I8730UBAMC2_I8730ZVVAMC2_ZVV.zip (VIVO) which I obtained in sam mobile, I ve tried another brand rom (TIM) with almost the same result. It's weird because I could reinstall the same stock rom before, it's the second time I have to this.
Now I'm trying to go back to cyanogen but Framaroot is not able to instal SU, and now I dont know what to do I'm desperate.
Well, thanks for your help,
FYI I managed somehow to make framaroot work via Gandalf method and was able to reinstall Cyanogen.
The funny thing is, after I flashed I8730XWAMK1 using CP-button in ODIN (following Svennen tut) the sound was restaured, meaning that my phone got dependent on this baseband to work.
Does that mean I cant flash the stock rom anymore (the one I used to flash before), thus I cant have warranty back?

Need Instructions to avoid almost bricking again

Hi guys. I very narrowly (somehow) managed to recover from almost bricking my phone.
I successfully S-Off'd my phone, and previously successfully installed TWRP. I tried to install this ROM:
https://forum.xda-developers.com/ve...m-perfumewl-m60-dev-edition-unlocked-t3442969
When I tried the to flash the ZIP for firmware and for the ROM, the firmware wouldn't install. I tried some other stuff and basically almost bricked my phone. Some how got it to suddenly start being able to use the htc_fastboot commands (????????) and was able to start installing the zip for stock... but it ran an error, I ran it again and it froze... then I forced my phone to reboot and somehow I'm back to having a stock system. No clue what I did.
My question is, can I take a software update on my phone normally (to 7.0) , and then install just that ROM? Or so I need to flash the firmware separately with a command line command? I just don't want to give myself another heart attack tonight. Current firmware version is 1.82.605.6, not rooted, don't believe my recovery is TWRP right now (but I know how to install that one).
I'm just looking for root access and the ability to remove pre-installed Verizon crap (VZW Messager, My Verizon, etc). Thanks guys.
CritKlepka said:
Hi guys. I very narrowly (somehow) managed to recover from almost bricking my phone.
I successfully S-Off'd my phone, and previously successfully installed TWRP. I tried to install this ROM:
https://forum.xda-developers.com/ve...m-perfumewl-m60-dev-edition-unlocked-t3442969
When I tried the to flash the ZIP for firmware and for the ROM, the firmware wouldn't install. I tried some other stuff and basically almost bricked my phone. Some how got it to suddenly start being able to use the htc_fastboot commands (????????) and was able to start installing the zip for stock... but it ran an error, I ran it again and it froze... then I forced my phone to reboot and somehow I'm back to having a stock system. No clue what I did.
My question is, can I take a software update on my phone normally (to 7.0) , and then install just that ROM? Or so I need to flash the firmware separately with a command line command? I just don't want to give myself another heart attack tonight. Current firmware version is 1.82.605.6, not rooted, don't believe my recovery is TWRP right now (but I know how to install that one).
I'm just looking for root access and the ability to remove pre-installed Verizon crap (VZW Messager, My Verizon, etc). Thanks guys.
Click to expand...
Click to collapse
I recommend you install this one instead:
https://forum.xda-developers.com/ve...m-1-85-605-9-aroma-root-root-debloat-t3529732
Follow instructions in OP...or:
1)fastboot flash FW w/o Boot w/ TWRP (htc_fastboot oem rebootRUU, fastboot flash zip...)
2)htc_fastboot reboot-bootloader
3) Finally, go into recovery-- backup and flash ROM (choose root w/ Magisk and debloat)
Thanks, I figured out why it wasn't working before. Used official TWRP, thats why it wasn't working. Wouldn't have thought that'd made that much of a difference.
New problem though; something I really would like to use the Google versions of contacts and dialers. Trying to flash those just made my phone app unusable. So I turned to LineageOS but it REFUSES to boot. Hangs on their little vertical line with a moving circle. Found out AOSP roms don't like VZW firmware? Flashed global firmware, updated through WiFi as much as possible, and then ran into issues with radio, even though I flashed the VZW one. So I reverted those changes, am going through with what you said above to have a working phone (after not having one all day), but any advice on getting Google dialer and contacts? I'd like to use LineageOS but I couldn't get it work at all.
CritKlepka said:
Thanks, I figured out why it wasn't working before. Used official TWRP, thats why it wasn't working. Wouldn't have thought that'd made that much of a difference.
New problem though; something I really would like to use the Google versions of contacts and dialers. Trying to flash those just made my phone app unusable. So I turned to LineageOS but it REFUSES to boot. Hangs on their little vertical line with a moving circle. Found out AOSP roms don't like VZW firmware? Flashed global firmware, updated through WiFi as much as possible, and then ran into issues with radio, even though I flashed the VZW one. So I reverted those changes, am going through with what you said above to have a working phone (after not having one all day), but any advice on getting Google dialer and contacts? I'd like to use LineageOS but I couldn't get it work at all.
Click to expand...
Click to collapse
You've got to read OPs, search threads, etc. Some ROMs work w/ our phone, and some do not. Check out the latest versions of ice and leedroid. Your most likely want to grab the SVN versions is the official versions may not yet support Verizon N firmware
Antny6 said:
You've got to read OPs, search threads, etc. Some ROMs work w/ our phone, and some do not. Check out the latest versions of ice and leedroid. Your most likely want to grab the SVN versions is the official versions may not yet support Verizon N firmware
Click to expand...
Click to collapse
I have been doing a lot of searching, but I've found so many different, conflicting sources of information. For example, one website told me to install LineageOS, was to be on latest Verizon OTA and just normally flash it; that obviously didn't work.
So from what I can see, our choices are Viper, Ice, LeeDroid, NuSense and the one you linked. I'm going to try out LeeDroid... out of curiousity, is there any reason, for example, LeeDroid or Ice haven't posted in this Verizon section with links to their ROMs?
*Edit Two* Dialer wouldn't work out of the "box" so to speak, so I had to go to Phone settings at the bottom, there is a menu called Calling Accounts. Had to go there and tap Receive Incoming Calls... why is that disabled in the first place..? But that seems to be an issue going even as far back as the Nexus 5. But that's how you find the option in the HTC 10 for anyone who comes across this issue too...
Not sure why your having issues with the flashing. Are you doing a full wipe? Not just factory reset. Going from stock to lineage requires a complete format of internal SD card. On the stock roms, most will ask if you are still on marshmallow firmware & are working fine. Again, we need more info on what firmware version your on, version of twrp& how your wiping your device. Most AOSP roms work, but no advanced calling
LOS ROMs will work without issue IF you have flashed the US unlocked firmware at some point in time. This is the only information that we have found from a VzW device with LOS booting and VzW device without. We started a thread awhile ago and is the only known method we currently know of to get LOS booting. Also works for Sprint users.
https://forum.xda-developers.com/verizon-htc-10/how-to/how-to-cm-booting-vzw-vzw-firmware-t3500900

No Sim Detected

Hey all......I created a thread awhile back when I borked my phone trying out a new treble rom that was supposed to be so easy even a nOOb could flash it, and it ended up messing up my phone to the point where the only way for me to get it back was to follow the thread to disassemble the phone and short the chip out.
Then, the screen was not responsive on ANY rom I flash except for MM and it worked with any up to B29. I tried a few times to upgrade all in vain but I was always able to flash MM B29 and have it work again.
Flash forward to last night and my itchy trigger upgrade finger did it again and I attempted to flash the Oreo from ZTE. It flashed fine but, again, no responsive screen. I thought well, maybe I could try Nougat again and I flash many different versions and in different ways (used miFlash, EDL tool, MiFavor recovery, twrp) and all resulted in the screen not being responsive. Sigh, so I flashed MM B29 but now it will not detect any sim or even allow wifi to be turned on.
I have tried multiple times to reflash MM B29 using all the different ways above and even went back and forth between roms. I tried the original way most of us first unlocked the bootloader and flashed through all those stepped zip packages from B20 to B29 and still nothing. I finally used twrp to erase/format all data and made certain the partitions were formatted as ext4 and tried again, still no sim.
I realize that my imei is not showing and even tried a program to flash? that to the phone.
NOW, what needs to be said is during ALL of this flashing the phone signal/sim DID show......yes.......the sim DID WORK......when I flashed anything other than MM B29. LOL. Of course, the issue is none of those roms allow the screen to work.
Please, if anyone can help I would appreciate it very much. I'm thinking by flashing the Oreo from ZTE it may have changed something that the MM B29 rom is not changing to allow the phone to read the imei/sims.
I'm not sure but I think the DFU multitool posted by @raystef66 can fix the IMEI issue.
You have installed the correct modem for you device? EG: if you've flashed a U modem on a G device the sim and WiFi won't work.
If this is correct check APN and network setting in the phones software.
I hope this helps ?
Syberclone said:
I'm not sure but I think the DFU multitool posted by @raystef66 can fix the IMEI issue.
You have installed the correct modem for you device? EG: if you've flashed a U modem on a G device the sim and WiFi won't work.
If this is correct check APN and network setting in the phones software.
I hope this helps
Click to expand...
Click to collapse
I appreciate the suggestions. Unfortunately, the DFU tool doesn't seem to work for me as it remains listed as Disconnected even after choosing the correct port.
I have always flashed the MM B29 EDL rom (A2017U_B29_MARSHMALLOW_FULL_EDL) that contains the correct modem. As I said, it always worked before.
As far as checking APN/network settings, well, there are none to check because the sim is not detected so all of those choices are greyed out. The signal bars fr both sims are blank in the notification area and of course wifi does not turn on.
I just finished another round of trying different roms to flash including LOS 15. LOS came up to the welcome screen (just like all the others) AND the AT&T logo with LTE full signal bars showing. Again, the screen does not respond to touch so it's all useless. I am at a loss as to why flashing MM B29 is no longer working for me.
Stop using guides mentioned in Axon7 thread,or stop listening to other users.Only thing i see here are bricks.
Probably you have hardware fault
The Axon 7 has been the worst phone for being bricked.
I've flashed ROMs on HTC's, Motorola and Google phones all without problems.
There are way too many packages and bootstacks etc, etc that cause problems and confusion.
So I wouldn't say don't follow threads or users advice.
My advice is research, research and research some more.
Thanks for the suggestions.
Something to get clear.....
I can successfully flash the roms and get to the Welcome screen to begin setup.
MARSHMALLOW:
-screen does respond to touch
-sims are NOT detected
-no AT&T logo
-no phone signal
ANY OTHER VERSION (Nougat, Oreo):
-screen does NOT respond to touch
-sims are recognized
-AT&T logo appears
-phone signal strength meter shows full bars
So, it's not a hardware fault. The phone was working perfectly fine when I had Marshmallow flashed. It's only this last time I flashed the Oreo from ZTE's website and when that did not work I tried a few other roms and then went back to the Marshmallow B29 EDL that I had been using all along.
Isn't there a way to COMPLETELY wipe this phone and start from scratch? As in, when your Windows is so full of crap and running slow you can format the hard drive and reinstall Windows from scratch. I have tried TWRP and format data (have to type yes to format) etc........is there a way to format w=everything that might affect the sim from being detected in Marshmallow? Better yet, the screen from being responsive in other ROMS after marshmallow?
djprez said:
Thanks for the suggestions.
Something to get clear.....
I can successfully flash the roms and get to the Welcome screen to begin setup.
MARSHMALLOW:
-screen does respond to touch
-sims are NOT detected
-no AT&T logo
-no phone signal
ANY OTHER VERSION (Nougat, Oreo):
-screen does NOT respond to touch
-sims are recognized
-AT&T logo appears
-phone signal strength meter shows full bars
So, it's not a hardware fault. The phone was working perfectly fine when I had Marshmallow flashed. It's only this last time I flashed the Oreo from ZTE's website and when that did not work I tried a few other roms and then went back to the Marshmallow B29 EDL that I had been using all along.
Isn't there a way to COMPLETELY wipe this phone and start from scratch? As in, when your Windows is so full of crap and running slow you can format the hard drive and reinstall Windows from scratch. I have tried TWRP and format data (have to type yes to format) etc........is there a way to format w=everything that might affect the sim from being detected in Marshmallow? Better yet, the screen from being responsive in other ROMS after marshmallow?
Click to expand...
Click to collapse
Did you installed a vendor partition?
Predatorhaze said:
Did you installed a vendor partition?
Click to expand...
Click to collapse
I am not certain. If the Oreo update that I downloaded directly off the ZTE site has one, then yes. If that is the cause, how would I modify it?
@djprez: To my knowledge, ZTE's official B12/B20 do not have a vendor partition. ZTE will almost certainly never add Treble support for the A7, if they are going to do so then now is an ideal time, since the A7 is an end-of-life device and no longer being manufactured.

Comprehensive guide and resources for migrating to a custom ROM from stock OREO?

Okay, so I've been trying to get some answers regarding custom ROMs for the past few days but I haven't even got one...and it seems I'm not the only one looking for them. So...lay it in this thread maybe we can start something up.
I am on stock OREO B04, phone's software has never been tampered with anything, TWRP, BL unlock and so on.
This is the premise of the thread, not only for me but for other users who find themselves in the same situation.
Oreo seems to be a bit of a hassle right now for migrating to custom ROMs, and this is not helped by the fact guides in the A7 section are all over the place as well, some may be outdated and there's no clear "Don't use this on x.x version" warning.
I am not even going to attempt to unlock the BL until I clear answer on wether it's possible or not. So let's start with this:
-Is it possible to unlock the BL on OREO?
-If not, what stock official ROM should we install in order to successfuly attempt to unlock the bl?
-Which guide or method is the best for doing so? I've found 2, one from 2016 on MM ROMs and one provided by TurkDevs that seems to work on some Nougat ROMs.
Then comes the recovery section:
-What TWRP should we install on a freshly unlocked device, the official releases, or the Nfound custom ones?
-Also, what are the prerequisites for installing TWRP...I hear that fastboot commands are gone since Nougat and that some flashing methods don't work, then I hear somehow you can do it by bringing back fastboot. How? There's only replies saying "type that command in fastboot" but nobody says if they had it or reinstalled it somehow.
Then comes the ROMs section:
-All custom ROMs seem to require a vendor partition as most if not all of them are Treble based. How do we get that to work?
- I am aware of the fact that the ROM threads have a prerequisites section, but none of them redirect you to a guide on how to get those prerequisites working. I understand that it's not the dev's responsability, I am not bashing anyone here, but a little bit of info cleaning and structuring should be in order in this section.
What I want for me and others in my situation is a clear answer on how to proceed, not a "flash this flash that". There's no secret that the A7 still has life in it especially with the new PIE ROMs.
I've recently seen a reply in one of the threads, encouraging the dev of one of this ROMs to not be disappointed by the seemingly low interest in PIE ROMs. I don't think there's a low interest in them, I think there are users that don't want to risk a bricked phone because of outdated guides and unlcear steps.
There's a lot of confusion going around here so I hope this thread will become a source of updated info on what's possible and what not. Thanks in advance!
Hi, I'm not the best person to help you with this since i've unlocked my Axon 7 a long time ago and I can't remember everything but I will try to help you based on my experience and on what I can remember.
Let's go
Starting with the bootloader, I unlocked mine on stock Nougat B09 using EDL Tool (Oreo wasn't even out when I unlocked my bootloader so I don't know if you can do it while running Oreo but just to be safe you should downgrade to Nougat)
It should be quite easy to unlock the bootloader, here's a simple step by step (please anyone correct me if I'm wrong)
- Download the EDL tool from the link above
- Downgrade your phone to Nougat (Using the updater on the phone itself or an EDL Package with EDL Tool or MiFlash - you can find the stock ROMs on @raystef66 's Download Center
- Once running Stock Nougat, turn on USB Debugging and Allow OEM Unlocking on Developer Settings
- Plug the phone to your computer and open EDL Tool (that should reboot the phone into EDL mode automatically)
- Navigate through the EDL Tool using the number keys on the keyboard, and it should be easy to find the Unlock Bootloader option. Unlock it and you should be done.
Once again that's the way I did it, I don't know if this is the easiest one available. You have more methods available like this one
Now onto the recovery situation, I think each developer recommends a specific TWRP version for their ROM's, like for example
@raystef66 likes NFound's TWRP 3.2.1-8 as you can see on his ROM's posts (check the first line in the installation guide)
@OrdenKrieger likes the official TWRP as you can see on Lineage OS 16.0 post
Generally, official TWRP should work just fine with any ROM.
On a recently unlocked Nougat Stock ROM, I recommend maybe an older version of TWRP, like 3.2.1 for example and you can flash it also using EDL Tool.
But when moving to Pie I recommend you use the latest TWRP version or the version that the ROM developer recommends. You probably know this but you can update your TWRP version by flashing it over the current version you have.
Now about the ROM's, the new ones have a Vendor partition so you have to create it when you're coming from Stock (because our Axon 7 doesn't support Project Treble) and to do that you can use @Oki 's PARTY Tool and after that you can flash the ROM normally, using the proper Bootstack and Modem files.
You could also try GSI's but I can't help you with that because I never tried them.
And this should be all.
I tried to keep it simple for now but i can help you further
I'm not the best person to guide you but at least I tried Feel free to ask me something and good luck!
@joaocandeias Well, dang it worked. Everything you described:
-going back to Nougat
-unlocking the bootloader with the EDL tool
-flashing TWRP-
creating the Vendor partition, and installing the new ROMs.
There were a few hiccups on the road, mostly driver related from my previous attempt, but nothing severe or something that would cause the device to brick.
I just installed @raystef66 's ResRemix ROM and it works fine. I'll start testing more of them in daily use and see which suits my needs best.
Thanks for the assistance!
TorqueSsS said:
@joaocandeias Well, dang it worked. Everything you described:
-going back to Nougat
-unlocking the bootloader with the EDL tool
-flashing TWRP-
creating the Vendor partition, and installing the new ROMs.
There were a few hiccups on the road, mostly driver related from my previous attempt, but nothing severe or something that would cause the device to brick.
I just installed @raystef66 's ResRemix ROM and it works fine. I'll start testing more of them in daily use and see which suits my needs best.
Thanks for the assistance!
Click to expand...
Click to collapse
I'm glad I could help
Since you're not the only person with questions on how to migrate from stock to custom, I'm thinking about writing a full post so more people can see it.
Btw what method did you use to downgrade to nougat?
@joaocandeias Sorry for the delayed response, I've got a really f'd up sleeping schedule these days. I'll write the exact steps I've done.
1. So, I first downloaded the B09 Nougat full stock ROM from the download center and tried to downgrade using the normal software updater in the phone (OTA window, local option).
It didn't work at first, I received a compatibility error, saying that the update is for "ailsa_ii" devices, while the device is not(or to be more exact, my device was " " ), which I found odd.
But, I thought that maybe I need the linked versions(like the last Nougat ROM before Oreo) so I downloaded the B10 Nougat ROM, and used the same procedure.
2. I set up the phone as a dud(skip everything, no Google account), turned USB debugging and OEM unlocking on, installed the original ZTE drivers straight from the phone and rebooted it into EDL to proceed with unlocking the BL.
At this point, I had the QUSB_BULK driver stick from my previous use of Zadig, so one quick "uninstall device software" and relpuging the phone go me the Qualcom 9008 driver in order.
3. I started the EDL tool, navigated through it and started the BL unlock procedure.
Once the phone rebooted I was greeted by the password screen.
One factory reset later and repeating the procedure greeted me with the "Bootloader unlocked" message. Sucess!
4.Now for TWRP, Vendor and ROM, got all the files onto the SD card, I flashedTWRP 3.2.1-8 NFound, then, from TWRP, I used the party tool, then flashed the UBv2(at which point it reverted TWRP to 3.2.3, flashed the 3.2.1-8 again with EDL ), modem, ROM, GApps, rebooted, set it up, then flashed Magisk...and everything seems fine.
The only issue I have now seems to be the camera, both stock app and GCam.
Open camera works , has the correct photo and video res, 60FPS doesn't work and the flash seems a bit laggy, but for me it's ok.
The DAC however is there, alive and kicking, Neutron detected the Hi-Res codec at launch and switched to it. It sounds the same as stock OREO to me so it is great, as this was my greatest fear when migrating to PIE. The DAC-AMP combo is like 60% of the reason I bought this phone in the first place.
TorqueSsS said:
@joaocandeias Sorry for the delayed response, I've got a really f'd up sleeping schedule these days. I'll write the exact steps I've done.
1. So, I first downloaded the B09 Nougat full stock ROM from the download center and tried to downgrade using the normal software updater in the phone (OTA window, local option).
It didn't work at first, I received a compatibility error, saying that the update is for "ailsa_ii" devices, while the device is not(or to be more exact, my device was " " ), which I found odd.
But, I thought that maybe I need the linked versions(like the last Nougat ROM before Oreo) so I downloaded the B10 Nougat ROM, and used the same procedure.
2. I set up the phone as a dud(skip everything, no Google account), turned USB debugging and OEM unlocking on, installed the original ZTE drivers straight from the phone and rebooted it into EDL to proceed with unlocking the BL.
At this point, I had the QUSB_BULK driver stick from my previous use of Zadig, so one quick "uninstall device software" and relpuging the phone go me the Qualcom 9008 driver in order.
3. I started the EDL tool, navigated through it and started the BL unlock procedure.
Once the phone rebooted I was greeted by the password screen.
One factory reset later and repeating the procedure greeted me with the "Bootloader unlocked" message. Sucess!
4.Now for TWRP, Vendor and ROM, got all the files onto the SD card, I flashedTWRP 3.2.1-8 NFound, then, from TWRP, I used the party tool, then flashed the UBv2(at which point it reverted TWRP to 3.2.3, flashed the 3.2.1-8 again with EDL ), modem, ROM, GApps, rebooted, set it up, then flashed Magisk...and everything seems fine.
The only issue I have now seems to be the camera, both stock app and GCam.
Open camera works , has the correct photo and video res, 60FPS doesn't work and the flash seems a bit laggy, but for me it's ok.
The DAC however is there, alive and kicking, Neutron detected the Hi-Res codec at launch and switched to it. It sounds the same as stock OREO to me so it is great, as this was my greatest fear when migrating to PIE. The DAC-AMP combo is like 60% of the reason I bought this phone in the first place.
Click to expand...
Click to collapse
Thanks! That will help me a lot to write a full guide. You'll be credited, don't worry
And yeah, when you migrate to custom roms you'll have to sacrifice camera quality and functionality and also a bit of speakers sound quality (all dolby atmos ports I tried are quite buggy and don't work well ; i only use atmos with the speakers). Headphones sound quality is great though.
If you don't use camera that much (not my case) and you're okay with the speakers sound quality then custom roms are probably the best option out there.
@joaocandeias
I was fully aware of the camera issues I might encounter, this has been the case with my old Mediatek devices when going to custom as well, same camera issues, but at least...it works here. Yeah, I lost some functionality, but to me it's a good trade-off. It can still take snaps and film properly so it's enough for me.
I am kind of going to miss Dolby on speakers (never liked it on headphones though), as it did a really good job for podcast style videos on YT, but it still sounds way better than a lot of phones without it so it's fine. I just need to crank the volume up a little more than usual.
I've heard that treble Pie Roms require a oreo bootloader, is this true? I am still confused how to install on my A2017G. In which order would I install bootloader and vendor partition?

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