Hi,
I unlocked the bootloader of my H870, installed TWRP 3.1.1.0 and SUPERSU. Everything was working great untill I decided to restore my system defaults to make a fresh start with my G6. After choosing the option to restore system defaults, my phone rebooted and it booted into TWRP. I rebooted my phone and it kept doing this all the time.
I decided to look for a stock ROM and flash that ROM.
I succesfully flashed the "LG-H87010f-Flashable.COMPLETE.zip" ROM (from autoprime's post) trough TWRP. But this did not work. I even wiped all the data from my phone (even system) and flashed the ROM again; still nothing.
Before having this issue, I had the same Baseband version, Kernel version, Build number. Only the dates and the Software Version are different.
I had the V10b-EUR-XX Software Version installed on my phone. I see this is the 10f version. I guess this should not be a problem right?
After this I took these steps solve this issue:
1. Downloaded new LG Mobile Drivers (LGMobileDriver_WHQL_Ver_4.2.0)
2. Downloaded and installed LGUP. LGUP doesnt recognize my phone as a LG G6 and this method did not work for that reason.
Fastboot mode is working on my phone; I can reboot my phone trough the commandline on my PC and things like that . However, my PC is not recognizing my phone as a LG G6 device in Fastboot mode.
My PC recognices my phone as a H870 when in TWRP. In Fastboot mode it recognices my phone as Android Device.
3. Installed LG Bridge for more drivers; did not work either
4. Downloaded Uppercut, but it doenst work without LGUP.
4. Looked all over the internet to find a Stock ROM in .zip or .img format; found nothing
5. Downloaded WindowsLGFirmwareExtract-1.2.6.1 and tried to extract the H87010d_00_OPEN_EU_OP_0327.kdz file. I extracted it into .bin files, but they were not usable. After that, I combined these .bin files into a system.img file. But that .img file was bigger then 5 GB and for that reason it was not usable to flash trough Fastboot or TWRP.
7. Looked for other methods to obtain a H870 Stock Rom, including another extraction method, but I cant figure out how to do this.
I have spend countless hours on this problem, but I cant find an usable H870 stock rom to flash my phone with.
Is there someone that can help me out with this problem? Im willing to donate some € if someone helps me to get my phone working again.
Really hoping for a kind person to help me out and provide me solution for this issue.
Thanks in advance
Try formating data in TWRP(not factory reset) then flash the 10f complete zip. Trying to perform a factory reset from within Android could have possibly messed up your data (due to TWRP being installed instead of stock recovery) so a full data format is needed.
Lgup most likely doesn't detect the phone because you wiped system. But flashing the complete zip should have restored system.
In the future make backups in TWRP to restore later.. or flash a kdz with lg bridge or lgup without wiping system first.
autoprime said:
Try formating data in TWRP(not factory reset) then flash the 10f complete zip. Trying to perform a factory reset from within Android could have possibly messed up your data (due to TWRP being installed instead of stock recovery) so a full data format is needed.
Lgup most likely doesn't detect the phone because you wiped system. But flashing the complete zip should have restored system.
In the future make backups in TWRP to restore later.. or flash a kdz with lg bridge or lgup without wiping system first.
Click to expand...
Click to collapse
Thanks for your reply. I have already formatted data in TWRP, but im still having this problem . It seems like something is preventing my device from starting up. I have flashed several ROMS on other devices, but never experienced something like this. Is there something else I can try? Can I flash the stock recovery and flash the stock ROM? I got the feeling TWRP is causing this issue.
If its possible to flash stock recovery, where can I find it?
RoyalD said:
Thanks for your reply. I have already formatted data in TWRP, but im still having this problem . It seems like something is preventing my device from starting up. I have flashed several ROMS on other devices, but never experienced something like this. Is there something else I can try? Can I flash the stock recovery and flash the stock ROM? I got the feeling TWRP is causing this issue.
If its possible to flash stock recovery, where can I find it?
Click to expand...
Click to collapse
Flash the complete zip then boot into download mode and flash kdz. Lgup should see the device as a g6 now instead of unknown device. If lgup isn't seeing any device at all (including unknown device) then your setup is off.. missing drivers or something. If that doesn't work.. idk.
RoyalD said:
Thanks for your reply. I have already formatted data in TWRP, but im still having this problem . It seems like something is preventing my device from starting up. I have flashed several ROMS on other devices, but never experienced something like this. Is there something else I can try? Can I flash the stock recovery and flash the stock ROM? I got the feeling TWRP is causing this issue.
If its possible to flash stock recovery, where can I find it?
Click to expand...
Click to collapse
autoprime said:
Try formating data in TWRP(not factory reset) then flash the 10f complete zip. Trying to perform a factory reset from within Android could have possibly messed up your data (due to TWRP being installed instead of stock recovery) so a full data format is needed.
Lgup most likely doesn't detect the phone because you wiped system. But flashing the complete zip should have restored system.
In the future make backups in TWRP to restore later.. or flash a kdz with lg bridge or lgup without wiping system first.
Click to expand...
Click to collapse
Don't factory reset using the in phone option. You can only do this through twrp's option. To fix this you'll need to boot through the hard side, using power and volume down until the lg logo appears then release power for 1 sec and then repress keeping volume down pressed. Confirm yes twice on the white screens to get to twrp. Once in twrp then reset again and reflash the system. Then using twrps img installer flash your twrp img(make sure it is on ext sd) again. Then reboot.
Swizzle82 said:
Don't factory reset using the in phone option. You can only do this through twrp's option. To fix this you'll need to boot through the hard side, using power and volume down until the lg logo appears then release power for 1 sec and then repress keeping volume down pressed. Confirm yes twice on the white screens to get to twrp. Once in twrp then reset again and reflash the system. Then using twrps img installer flash your twrp img(make sure it is on ext sd) again. Then reboot.
Click to expand...
Click to collapse
Ohhh F*** YEAHH!!! :victory: Booting the "hard side" fixed the problem!! It was the first thing I tried this morning. I just booted this way and rebooted my phone without resetting or flashing anything. Im so damn happy lol. I still dont understand what happened and why my device was actling like this. But I learned a hard lesson; backup, backup and once again: BACKUP. And dont Factory reset in Android!
Thanks a lot for your help guys! I really apreciate it! :victory::victory:
autoprime said:
Flash the complete zip then boot into download mode and flash kdz. Lgup should see the device as a g6 now instead of unknown device. If lgup isn't seeing any device at all (including unknown device) then your setup is off.. missing drivers or something. If that doesn't work.. idk.
Click to expand...
Click to collapse
Thanks a lot for taking your time to help me out. The combination of your ROM/tips and Swizzle82's tip made me fix my phone. You're the man! :victory:
RoyalD said:
Thanks for your reply. I have already formatted data in TWRP, but im still having this problem . It seems like something is preventing my device from starting up. I have flashed several ROMS on other devices, but never experienced something like this. Is there something else I can try? Can I flash the stock recovery and flash the stock ROM? I got the feeling TWRP is causing this issue.
If its possible to flash stock recovery, where can I find it?
Click to expand...
Click to collapse
RoyalD said:
Ohhh F*** YEAHH!!! :victory: Booting the "hard side" fixed the problem!! It was the first thing I tried this morning. I just booted this way and rebooted my phone without resetting or flashing anything. Im so damn happy lol. I still dont understand what happened and why my device was actling like this. But I learned a hard lesson; backup, backup and once again: BACKUP. And dont Factory reset in Android!
Thanks a lot for your help guys! I really apreciate it! :victory::victory:
Click to expand...
Click to collapse
Probably because you already did all the flashing prior to. Glad it worked. This happened when I first got my V20 and was stoned not thinking. I reset using the in phone option and it caused twrp bootloop. I too learned the hard way.
Had the same issue, fixed it, thanks.
My phone kept doing this booting into recovery no mattery what ROM I installed.
I got into twrp by holding volume down and selecting yes on next 2 white screens....but now this message appears all the time.
please can someone help??
Here is message:
"Encryption Unsuccessful
The password you entered is correct, but unfortunately your data is corrupt.
To resume using your phone, you need to perform a factory reset. When you set up your phone after the reset , you'll have an opportunity to restore any data that was backed up to your Google Account."
Matt.
matthew33 said:
My phone kept doing this booting into recovery no mattery what ROM I installed.
I got into twrp by holding volume down and selecting yes on next 2 white screens....but now this message appears all the time.
please can someone help??
Here is message:
"Encryption Unsuccessful
The password you entered is correct, but unfortunately your data is corrupt.
To resume using your phone, you need to perform a factory reset. When you set up your phone after the reset , you'll have an opportunity to restore any data that was backed up to your Google Account."
Matt.
Click to expand...
Click to collapse
Flash a firmware trough LGUp, or flash again the last TWRP available trough fastboot.
RoyalD said:
Thanks a lot for taking your time to help me out. The combination of your ROM/tips and Swizzle82's tip made me fix my phone. You're the man! :victory:
Click to expand...
Click to collapse
Please help, i have the same problem and nothing, what exactly is a boot to the hard side? I ve tried to power off the phone, press vol down and power, realase power 1 sec, press again...but nothing...still boot on twrp...
Well, I finally solved it with lgup and uppercut... what a nightmare.
matthew33 said:
My phone kept doing this booting into recovery no mattery what ROM I installed.
I got into twrp by holding volume down and selecting yes on next 2 white screens....but now this message appears all the time.
please can someone help??
Here is message:
"Encryption Unsuccessful
The password you entered is correct, but unfortunately your data is corrupt.
To resume using your phone, you need to perform a factory reset. When you set up your phone after the reset , you'll have an opportunity to restore any data that was backed up to your Google Account."
Matt.
Click to expand...
Click to collapse
Flash stocl .kdz with uppercut and lg up
Saved my G6!
Swizzle82 said:
Don't factory reset using the in phone option. You can only do this through twrp's option. To fix this you'll need to boot through the hard side, using power and volume down until the lg logo appears then release power for 1 sec and then repress keeping volume down pressed. Confirm yes twice on the white screens to get to twrp. Once in twrp then reset again and reflash the system. Then using twrps img installer flash your twrp img(make sure it is on ext sd) again. Then reboot.
Click to expand...
Click to collapse
Great tip @Swizzle82! It allowed me to restore my LG G6 after bootloop. It had not been detected by PC, and this hardware reset helped!
Hi, all
If I understand, and to sum up :
I rooted my LG-G6 few weeks ago, and intall TWRP. When OTA wants to install official update, the reboot stops in TWRP mod, so ... failed :-/
Is the solution to flash through Uppercut/LGUP with a .kdz file, without risk of brick the phone ?
Thx
Related
Was having problems with Google play store so I factory reset from phone and not twrp and was stuck in twrp bootloop.
Then I flashed H918 deodex rom to fix it and now I'm stuck at LG Startup screen. Help please. I cannot afford another phone. Sucky military pay ((
Sent from my SM-T800 using Tapatalk
did you do a backup of the stock rom? go back into recovery and just load the backup.
Sent from my LG-US996 using Tapatalk
Did you re-run the Superuser zip after reflashing the rom? Some roms don't do that automatically and leaves it up to you. Also havent read up on it, but can you flash a rom from 918 to your model? If worse comes to worse im sure you can use LGs desktop tool to restore to factory and start over.
Yeah i know how you feel about the military pay ? im active duty army but not for much longer!
z3roshift said:
Was having problems with Google play store so I factory reset from phone and not twrp and was stuck in twrp bootloop.
Then I flashed H918 deodex rom to fix it and now I'm stuck at LG Startup screen. Help please. I cannot afford another phone. Sucky military pay ((
Sent from my SM-T800 using Tapatalk
Click to expand...
Click to collapse
You need to boot into twrp via hardware keys then factory reset. I did this a while back. It was frickin killing me. You need to power off or pull battery. Use the hardware keys(power plus volume down until lg logo appears then release power for one second repress it until you get the white reset screen) to boot into recovery. Hit yes twice. Factory reset. Restore your backup if you have one the reboot system..
Swizzle82 said:
You need to boot into twrp via hardware keys then factory reset. I did this a while back. It was frickin killing me. You need to power off or pull battery. Use the hardware keys(power plus volume down until lg logo appears then release power for one second repress it until you get the white reset screen) to boot into recovery. Hit yes twice. Factory reset. Restore your backup if you have one the reboot system..
Click to expand...
Click to collapse
I'm in same boat for same reason with my US996. Factory reset from withing system. The problem is TWRP intercepts the request, and does not complete it. Even if you do it (factory reset) with the button combination. I have tried to wipe all and restore my TWRP backup (all partitions except sd card), but it remains in the boot loop. I also tried to flash a H918 rom, but the installer errors with what amounts to "wrong device" error. So stuck until I can track down a stock US996 installable file.
flashed boot.img and system.img and now when im ready to reboot it says NO OS! are you sure you want to reboot?
papashex said:
I'm in same boat for same reason with my US996. Factory reset from withing system. The problem is TWRP intercepts the request, and does not complete it. Even if you do it (factory reset) with the button combination. I have tried to wipe all and restore my TWRP backup (all partitions except sd card), but it remains in the boot loop. I also tried to flash a H918 rom, but the installer errors with what amounts to "wrong device" error. So stuck until I can track down a stock US996 installable file.
Click to expand...
Click to collapse
My experience was I restored a backup and reboot. It kept booting to twrp no matter what. I could access download mode and fastboot but those did nothing. I reflashed recovery while in twrp restored backup and it still kept looping. I then at my wits end entered twrp by doing what I explained. I used the hardware side and rebooted system after that. You might try reflashing recovery img via twrp then try using the hardware keys to enter twrp and reboot from there..
---------- Post added at 11:27 PM ---------- Previous post was at 11:25 PM ----------
z3roshift said:
flashed boot.img and system.img and now when im ready to reboot it says NO OS! are you sure you want to reboot?
Click to expand...
Click to collapse
Pretty sure that's normal to say that after flashing a system img.. Could be wrong but I'd wait for a confirmation.
im stuck in TWRP loop as well accidently deleted my restore point US996 as well anyone have a spare restore point they can share?!?!
---------- Post added at 05:13 AM ---------- Previous post was at 05:09 AM ----------
Did this work?
Sent from my SM-G920V using Tapatalk
I kept at it (twrp restore of previous backup) and finally got back into workable state. After twrp restore I had to also immediately flash a super su.zip. The first reboot went back to recovery (twrp) but instead of panicking and messing about I simply had it reboot system again and it came back up normally.
I found that my twrp backup is not truly clean stock so I'm done messing about until a clean stock for us996 shows up.
Yeah i got mine booting but on the main screen notification bar says Android is upgrading when it finishes my phone reboots
Sent from my SM-G920V using Tapatalk
twrp bootloop
Swizzle82 said:
You need to boot into twrp via hardware keys then factory reset. I did this a while back. It was frickin killing me. You need to power off or pull battery. Use the hardware keys(power plus volume down until lg logo appears then release power for one second repress it until you get the white reset screen) to boot into recovery. Hit yes twice. Factory reset. Restore your backup if you have one the reboot system..
Click to expand...
Click to collapse
I'm in the same boat. Any tricks to this process? The timing is crazy in that a red triangle comes up almost right away after the LG screen. TIA for the help!
lg bootloop downlowd lg bridge
LouDogNation said:
Did you re-run the Superuser zip after reflashing the rom? Some roms don't do that automatically and leaves it up to you. Also havent read up on it, but can you flash a rom from 918 to your model? If worse comes to worse im sure you can use LGs desktop tool to restore to factory and start over.
Yeah i know how you feel about the military pay im active duty army but not for much longer![/QUOTE download lg bridge the connect your phone in download node then go to software update n on the right hand bottum u will see error recovery press that it will reload your firmware i hoppe this works for u n how t get to download mode take battery out n hold the up button n put your cable in to phone n computer it will go into download mode n thats it
Click to expand...
Click to collapse
So I installed TWRP recovery using tuliptool and all that, but didn't bother with bootloader unlocking since it said it's not needed. So I tried to install Magisk using the instructions on their thread but after booting it asks me to reset my phone because the data got corrupted.
Luckily I had backed everything up beforehand, so I restored boot image and everything works fine again. Just wanted to know what I did wrong here. Did I miss any steps?
auxillium said:
So I installed TWRP recovery using tuliptool and all that, but didn't bother with bootloader unlocking since it said it's not needed. So I tried to install Magisk using the instructions on their thread but after booting it asks me to reset my phone because the data got corrupted.
Luckily I had backed everything up beforehand, so I restored boot image and everything works fine again. Just wanted to know what I did wrong here. Did I miss any steps?
Click to expand...
Click to collapse
You probably didn't miss anything if it's the "Your device is corrupt. It can’t be trusted and may not work properly” error, I get the same thing. You messed with the files in the boot partition so ZTE's "safety" features in the stock ROM automatically call them corrupted. I simply hit the power button and continue to boot, my device works fine (actually much better than before being rooted with Magisk). I'm the one who "corrupted" the phone on purpose, so I'm comfortable it's fine. If you're getting another message, I'm not entirely sure why. Maybe try ADB sideloading Magisk in TWRP, it's what "worked" for me.
marvelljones said:
You probably didn't miss anything if it's the "Your device is corrupt. It can’t be trusted and may not work properly” error, I get the same thing. You messed with the files in the boot partition so ZTE's "safety" features in the stock ROM automatically call them corrupted. I simply hit the power button and continue to boot, my device works fine (actually much better than before being rooted with Magisk). I'm the one who "corrupted" the phone on purpose, so I'm comfortable it's fine. If you're getting another message, I'm not entirely sure why. Maybe try ADB sideloading Magisk in TWRP, it's what "worked" for me.
Click to expand...
Click to collapse
What do you mean by "hitting the power button and continue to boot"? When I hit the power button on the "Decryption unsuccessful" screen it just locks and unlocks like normal, but stays there.
Ok I managed to install Magisk after factory reset, but after that my sdcard is not being recognized anymore (but is recognizable in TWRP). So I decided to restore the backup i had, and rebooted. But now I'm stuck on the ZTE logo during boot. I can still open TWRP, though. I've tried wiping system, data, and cache, then restoring the backup, also no good. For now I'm downloading the stock firmware and will try that. Any ideas on how I can fix this before I flash the stock firmware?
EDIT: Ok I managed to fix it by installing the no verity boot image instead. Boots again. I'll probably refrain from trying to root for now. Thanks for the help.
auxillium said:
Ok I managed to install Magisk after factory reset, but after that my sdcard is not being recognized anymore (but is recognizable in TWRP). So I decided to restore the backup i had, and rebooted. But now I'm stuck on the ZTE logo during boot. I can still open TWRP, though. I've tried wiping system, data, and cache, then restoring the backup, also no good. For now I'm downloading the stock firmware and will try that. Any ideas on how I can fix this before I flash the stock firmware?
EDIT: Ok I managed to fix it by installing the no verity boot image instead. Boots again. I'll probably refrain from trying to root for now. Thanks for the help.
Click to expand...
Click to collapse
Well, I wasn't much help, but it sounds like your overall problem was different than mine. My only advice is if you attempt to root with Magisk again, is to connect to your PC/Mac/etc with a cable, use the Advanced menu in TWRP, choose ADB sideload, and sideload Magisk from your PC/Mac/etc. You can find a more advanced explanations on various websites how to use ADB if you don't already know how. For some reason that worked for me and gave me full Magisk and phone functionality when nothing else did.
marvelljones said:
Well, I wasn't much help, but it sounds like your overall problem was different than mine. My only advice is if you attempt to root with Magisk again, is to connect to your PC/Mac/etc with a cable, use the Advanced menu in TWRP, choose ADB sideload, and sideload Magisk from your PC/Mac/etc. You can find a more advanced explanations on various websites how to use ADB if you don't already know how. For some reason that worked for me and gave me full Magisk and phone functionality when nothing else did.
Click to expand...
Click to collapse
Will this allow me to install magisk without a factory reset?
auxillium said:
Will this allow me to install magisk without a factory reset?
Click to expand...
Click to collapse
I didn't have to, but I can't guarantee it will work for you. I had previously factory reset my phone but at the time I sideloaded Magisk I had been using the phone for at least a week. Just make a backup of everything first to be safe. *edit* I am using the beta version of Magisk (16.4), not sure if that's making a difference.
I have the H910 Version.
I flashed the SuperV20 rom and the phone got stuck on the LG Screen. I pulled the battery and manually flashed Magisk. The phone still as getting stuck. So I was going to reinstall the ROM. I read that I may need an updated TWRP. I wiped my phone and went to flash and updated TWRP and when i flashed the img file i hit reboot to recovery and when it was going into recovery, the system crashed. What did i do wrong?
H0L1D4Y said:
I have the H910 Version.
I flashed the SuperV20 rom and the phone got stuck on the LG Screen. I pulled the battery and manually flashed Magisk. The phone still as getting stuck. So I was going to reinstall the ROM. I read that I may need an updated TWRP. I wiped my phone and went to flash and updated TWRP and when i flashed the img file i hit reboot to recovery and when it was going into recovery, the system crashed. What did i do wrong?
Click to expand...
Click to collapse
For safety, don't flash recovery without a working rooted rom, to keep an easy fix working.. Now since you still have the engineering bootloader, you should be able to pull the battery to get it powered down, then hold volume down while connecting to a PC to enter fastboot mode. Grab a good copy of my latest twrp . Open up a command prompt and run
Code:
fastboot flash recovery path/to/TWRP.img
. Then since your rom is broken, pull the battery after it's completed and then you should be able to get back into recovery and reflash a rom.
Password
Phoenix591 said:
For safety, don't flash recovery without a working rooted rom, to keep an easy fix working.. Now since you still have the engineering bootloader, you should be able to pull the battery to get it powered down, then hold volume down while connecting to a PC to enter fastboot mode. Grab a good copy of my latest twrp . Open up a command prompt and run
Code:
fastboot flash recovery path/to/TWRP.img
. Then since your rom is broken, pull the battery after it's completed and then you should be able to get back into recovery and reflash a rom.
Click to expand...
Click to collapse
When I open TWRP, they asked for a password so i hit cancel and did a factory reset and that fixed it. I flashed Lineage 15.1 OS and when the LG Screen loads, the phone crashes.. Should i redo the LGUP and ROOT Process?
H0L1D4Y said:
When I open TWRP, they asked for a password so i hit cancel and did a factory reset and that fixed it. I flashed Lineage 15.1 OS and when the LG Screen loads, the phone crashes.. Should i redo the LGUP and ROOT Process?
Click to expand...
Click to collapse
Did you do the regular factory reset, or did you format data? You need to format data if it was encrypted (it was if it was asking for a password in TWRP) going from anything stock based to lineage or vise versa.
Phoenix591 said:
Did you do the regular factory reset, or did you format data? You need to format data if it was encrypted (it was if it was asking for a password in TWRP) going from anything stock based to lineage or vise versa.
Click to expand...
Click to collapse
Thanks I got everything working.. I wonder why superv20 didn't work tho
H0L1D4Y said:
Thanks I got everything working.. I wonder why superv20 didn't work tho
Click to expand...
Click to collapse
Perhaps it needed the new TWRP, or perhaps it was being finicky about having something wipe or not.
Hi,
i used LOS but the phone broke and i had to revert back to a stock image in order to get it fixed.
I restored laf/download-mode and flashed a kdz using LGUP with the appropriate dll. After the flash finishes, the phone reboots, but never finishes rebooting. I have to remove the battery to get it off again.
Is there anything i can try?
Thanks.
So you're stuck on the bootanimation? Did you wipe before restore?
crumbling9999 said:
So you're stuck on the bootanimation?
Click to expand...
Click to collapse
The boot looks as follows:
LG logo
Unlocked boot loader message
LG logo
A colourful circle with "Erasing" written underneath
The Phone seems to turn off and on again
LG logo
Unlocked boot loader Message.
LG logo
White T-Mobile-Screen
"Android is starting", "Don’t turn off your phone". With a loading bar reachting 100%
Repeat from step 9.
crumbling9999 said:
Did you wipe before restore?
Click to expand...
Click to collapse
I used LGUP to flash a kdz. I don’t think wiping is an option there.
You could wipe before flashing, or use the Refurbished option in LGUP (doesn't work for all KDZs). Pull the battery, use the recovery key combo to wipe, and see if it boots.
crumbling9999 said:
You could wipe before flashing.
Click to expand...
Click to collapse
You mean a twrp wipe? Because i don’t have twrp anymore. I only had it on laf, which i reflashed to download-mode.
crumbling9999 said:
or use the Refurbished option in LGUP (doesn't work for all KDZs)..
Click to expand...
Click to collapse
I might want to try that.
crumbling9999 said:
Pull the battery, use the recovery key combo to wipe, and see if it boots.
Click to expand...
Click to collapse
Again, are you assuming i have twrp on the recovery partition or are you talking about the stock recovery?
I mean like you could have wiped with TWRP before reflashing the KDZ. You can also wipe using the stock recovery
crumbling9999 said:
You can also wipe using the stock recovery
Click to expand...
Click to collapse
I did that just now but the boot behaviour looks the same.
There's another user on the v20 subreddit with similar problem to your as well (flashed KDZ from Lineage, bootloop), phone had issues before. Could be an issue with Lineage, could be the hardware issue causing it to not boot. If you're returning it to get fixed, I don't think the bootloop would be a problem, just tell the warranty guy it started bootlooping as well. Without logcat (and you can't get access to it without root), there's no diagnosing why its rebooting.
I haven't had the exact same problem, but I've experienced something similar. If the /persdata partition gets corrupted, US996 and US996-based ROM would no longer boot, because it writes log to the partition as part of the first boot process. F800 (korean) doesn't care about it because their ROM's partition table doesn't have that partition at all, while LS997 and VS995 have but don't write to it. Unfortunately, you can't crossflash to other device's KDZ due to the H918 having a different RSA key (and probably incremented ARB if you used lafsploit), so there's no diagnosing the exact problem, but I suspect LineageOS might have damaged a partition or something
There is still the Refurbished option in LGUP, which i haven’t tried yet. After this fails i either return it as is or get a new mainboard.
Thanks for all your help.
In the meantime, maybe someone else has a suggestion.
I am stuck at encryption failed when I flash stock oreo rom. I tried formatting data using twrp and flashed no encryption file as well but nothing works.:crying::crying::crying:
I just want to use the stock oreo rom again with root.
Pls help:crying:
Which ROM did you try and flash / install?
Try upgrading your TWRP to the latest version too.
jl10101 said:
Which ROM did you try and flash / install?
Try upgrading your TWRP to the latest version too.
Click to expand...
Click to collapse
I used partition dl mode to flash the stock oreo rom over 7.0 to keep the root. Then i flashed custom kernal for stock 8.0 but it didnt work. I have done the same procedure before and it has worked like a charm. But it keeps on giving the encrytion error when i try it now
Deadmeat03 said:
I used partition dl mode to flash the stock oreo rom over 7.0 to keep the root. Then i flashed custom kernal for stock 8.0 but it didnt work. I have done the same procedure before and it has worked like a charm. But it keeps on giving the encrytion error when i try it now
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Odd. If I had to guess anything, it would be that not all the partitions were flashed when going from Nougat to Oreo.
I once flash a Nougat ROM from an Oreo ROM and I had the same encryption issue and lost everything.
That was the last time I would trust myself again and not do a backup.
Flash stock recovery from KDZ through patched LGUP & do a factory reset .
After stock recovery completes the wipe do a battery pull, flash TWRP via fastboot, format data, flash Kernel & Magisk & you should be back on track...
Prowler_gr said:
Flash stock recovery from KDZ through patched LGUP & do a factory reset .
After stock recovery completes the wipe do a battery pull, flash TWRP via fastboot, format data, flash Kernel & Magisk & you should be back on track...
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I tried that as well. With stock recovery is says data is corrupted and doesn't do anything. I think it might be a problem with patched lg up because when i use normal lg up to flash oreo it works. But I cant root then.
I would try changing to 3.2.3-4 TWRP and then trying the procedure again. It seems that the 3.3.0 TWRP does not decrypt properly sometimes.
In the same boat as OP
scottyrick said:
I would try changing to 3.2.3-4 TWRP and then trying the procedure again. It seems that the 3.3.0 TWRP does not decrypt properly sometimes.
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Hi
Looking for a way to keep TWRP and root ... any help appreciated
I've got a US996 with the same issue as the op. I have the latest TWRP 3.3.1-0. The phone was working fine until I upgraded twrp but I might have done a mistake resetting phone outside of twrp.
I can still get back into twrp but I haven't been able to install zip files without getting that decryption unsuccessful message when booting to system.
When getting back into TWRP using hardware buttons sometimes there is a prompt asking "keep system read only?" which I never chose and swipe to allow modification. I think this happens after
I pull the battery after getting the decryption unsuccessful message. There is a reset system that I could chose under the decryption unsuccessful message but I'm assuming that will make me lose twrp
...but if my phone is a us996 and is still
unlocked, would it matter if I did select it? Wouldn't I be able to reinstall twrp using adb again on a computer after Oreo is reinstalled?
To do Prowler_gr's suggestion which guide do I follow (sounds like I should do the second option)
"Flash stock recovery from KDZ through patched LGUP & do a factory reset .
After stock recovery completes the wipe do a battery pull, flash TWRP via fastboot, format data, flash Kernel & Magisk & you should be back on track... "
1-[GUIDE][UNBRICK] Patch LGUP to unlock features & unbrick V20 (Variant mismatch fix) to use lgup
or this guide
2-Ultimate guide to unbrick LG V20(Only Variants with .KDZ)[No OS Firmware Update Loop]
Thank you for any guidance on this...
There is a reset system that I could chose under the decryption unsuccessful message but I'm assuming that will make me lose twrp
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Don't blame me if this goes wrong but I'm pretty much 100% certain that you mush press the rest button. This has happened to me a few times I'm sure. You won't loose twrp. Whatever resetting goes on in the background I don't think it's an actual Factory Reset.
Edit: Just to be clear you taking about a white screen with I think in dark blue or black text ENCRYPTION UNSUCCESSFUL and something like "reset phone" option directly under it, on the upper half of the screen?
Hi ezzony
Yes you are thinking of the right decryption unsuccessful page. I get it when booting to system
after installing Oreo and magisk 19 and having wiped everything (format data too). I will get the exact wording of it tonight
Thanks!
downgrade twrp i has same prob twrp 3.3.1 gives issues
ghet2rockuu said:
downgrade twrp i has same prob twrp 3.3.1 gives issues
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Hi ghet2rockuu
I downgraded twrp and that got it working Thank You! see also Phoenix591 thread [Recovery][Unofficial for the moment]TWRP 3.3.1-0 : 2019-05-17 #625
Thank You !