Flash TWRP boot.img -> reset device? Backup through PC instead? - ASUS ROG Phone II Questions & Answers

Hello,
I'm wondering if you flash TWRP boot.img through adb fastboot, does it reset the device in the same way as when flashing root through boot.img. I suspect the behavior is identical.
So I had TWRP and root both functionally flashed through adb fastboot when initiating my device. Now I'm somewhat happy with my setup and I were going to proceed with a complete system backup through TWRP.. Only to notice TWRP is gone, replaced by the standard recovery! Now I do not dare to reflash TWRP since I suspect all my devices changes will reset..
Is there any corresponding full system backup I could execute through fastboot adb (I've read about inconsistent results regarding adb backups) or other PC-tools?
Emancipating myself from TWRP would be desirable since this isn't my first time, or device from where it has simply 'disappeared'. Additionally, from what I've grasped, you will have to reflash TWRP every system update anyway on the ROG 2.
thanks in advance

Related

[Q] Nexus 6 stuck at set up screen

Hello, I was previously on 5.1 and was following this guide to sideload the OTA for 5.1.1 on Tmobile:
Installation
Your bootloader MUST be unlocked already, if not, these instructions do not apply to you so don't do them, it won't work.
No guarantees that these steps will work for you, or if it wipes or bricks your phone.
Basically, you're downgrading your phone to 5.0.1 then running the OTA. NO WIPE!!!
Turn off all security code/pattern lock/pin, set it to None. Set OEM Unlock in Developer Options on just in case.
Reboot phone to bootloader (adb reboot-bootloader), or Power+Vol Down while the phone is off.
Extract all the LRX22C system Image zips.
Run the following fastboot commands:
fastboot flash boot boot.img
fastboot flash cache cache.img
fastboot flash recovery recovery.img
fastboot flash radio radio.img
fastboot flash system system.img
Restart bootloader (Not sure if it's necessary?)
Go to Recovery Mode from the bootloader.
Sideload the LMY47M OTA from the stock Recovery.
Look at your phone and command window on pc, make sure everything is 100% or Success/Finish. If no Errors, then you should be on LMY47M.
Reboot into LMY47M.
Reboot phone to the bootloader.
Enter Recovery Mode
Sideload the LYZ28E OTA from the stock Recovery.
Look at your phone and command window on pc, make sure everything is 100% or Success/Finish. If no Errors, then you should be on LYZ28E.
Boot into LYZ28E.
When I got to the (Sideload the LMY47M OTA from the stock Recovery.) step on that guide, I got stuck. My phone was not being detected when in stock recovery and trying to adb sideload. I didn't think I'd be able to troubleshoot my phone not being detected without actually starting my phone back up, so I tried to do that. It was stuck in the boot animation for quite a while, so I figured that was because I didn't delete userdata. I went back into stock recovery and performed factory reset as well as wipe cache partition. Now my phone will boot up to the initial set up screen, but I am constantly spammed with errors like "Unfortunately, Nfc service has stopped" and "Unfortunately, Phone has stopped", etc. I am at a loss on how to proceed from here. Any help would be greatly appreciated.
elementology said:
Hello, I was previously on 5.1 and was following this guide to sideload the OTA for 5.1.1 on Tmobile:
Installation
Your bootloader MUST be unlocked already, if not, these instructions do not apply to you so don't do them, it won't work.
No guarantees that these steps will work for you, or if it wipes or bricks your phone.
Basically, you're downgrading your phone to 5.0.1 then running the OTA. NO WIPE!!!
Turn off all security code/pattern lock/pin, set it to None. Set OEM Unlock in Developer Options on just in case.
Reboot phone to bootloader (adb reboot-bootloader), or Power+Vol Down while the phone is off.
Extract all the LRX22C system Image zips.
Run the following fastboot commands:
fastboot flash boot boot.img
fastboot flash cache cache.img
fastboot flash recovery recovery.img
fastboot flash radio radio.img
fastboot flash system system.img
Restart bootloader (Not sure if it's necessary?)
Go to Recovery Mode from the bootloader.
Sideload the LMY47M OTA from the stock Recovery.
Look at your phone and command window on pc, make sure everything is 100% or Success/Finish. If no Errors, then you should be on LMY47M.
Reboot into LMY47M.
Reboot phone to the bootloader.
Enter Recovery Mode
Sideload the LYZ28E OTA from the stock Recovery.
Look at your phone and command window on pc, make sure everything is 100% or Success/Finish. If no Errors, then you should be on LYZ28E.
Boot into LYZ28E.
When I got to the (Sideload the LMY47M OTA from the stock Recovery.) step on that guide, I got stuck. My phone was not being detected when in stock recovery and trying to adb sideload. I didn't think I'd be able to troubleshoot my phone not being detected without actually starting my phone back up, so I tried to do that. It was stuck in the boot animation for quite a while, so I figured that was because I didn't delete userdata. I went back into stock recovery and performed factory reset as well as wipe cache partition. Now my phone will boot up to the initial set up screen, but I am constantly spammed with errors like "Unfortunately, Nfc service has stopped" and "Unfortunately, Phone has stopped", etc. I am at a loss on how to proceed from here. Any help would be greatly appreciated.
Click to expand...
Click to collapse
Your bootloader is unlocked, yes? Good. Flash TWRP recovery, flash zip for lmy47m full stock from here:
http://forum.xda-developers.com/nexus-6/help/bootanimation-t3107211
Then continue to sideload the new OTA.
Boot to bootloader, fastboot flash TWRP, reboot to bootloader, select recovery mode, boot to TWRP, mount MTP to transfer file from PC (if needed), flash one time stock zip, sideload OTA.
You probably flashed something incorrectly. In order to manually upgrade to the 5.1.1 T-Mobile OTA (LYZ28E), you have to be on LMY47M (not I or D, or any of the others), since that is only an OTA and not a full factory image, you need to flash the 5.0.1 (LRX22C) manually with fastboot. I wanted to get on the newest OTA (even though I mostly use AOSP ROMs) and was already on 5.1.1 and the only way to do it was to go all the way back to 5.0.1
So download LRX22C from Google, extract the archive and then extract the archive within that archive that contains the system images (cache, boot, system, userdata, recovery), boot into the bootloader and flash each image manually, don't use the included batch or shell scripts as they don't work. Just to be on the safe side DO NOT FLASH THE BOOTLOADER IMAGE FROM ANY OF THESE, IT MAY BRICK YOUR PHONE (boot.img and the bootloader are separate files). One the flash is complete boot into Android, then reboot to the Android recovery, sideload the OTA to go from LRX22C to LMY47M, boot into Android and check to see if a system update is available (it was for me), if not reboot back into the android recovery and sideload LYZ28E.
Thanks to both of you. I successfully flashed and booted into 5.0.1, which then prompted a 5.1 OTA. Hopefully when this is done I'll be able to sideload the 5.1.1 OTA.

Can't access to TWRP anymore

Hello everyone,
so here is my configuration:
-latest TWRP (3.0.2) with F2S support
-bootloader unlocked
-the N6 is rooted
-ROM: AICP MM
2 days ago I tried to reboot to recovery to flash a more recent version of my AICP ROM. I just had the time to see the TWRP boot logo and then the phone rebooted to load the system. I can't access anymore to my recovery. I tried to rename the twrp directory on the internal SD but it does not change anything.
I reflashed TWRP with ADB and fastboot, but it didn't resolve the problem.
The only change I made recently was to flash a new radio to try to improve my connectivity.
I flashed 5.34 with the new bootloader in fastboot. Then I tried 5.32 without changing the bootloader and finally the 5.36 with the latest bootloader. So I don't know when the problem occured but now my phone even reboots randomly !
So if anyone has a solution you're welcome !
What happens when you connect the N6 to the PC and issue the fastboot boot recovery command?
Check your volume controls. They may be stuck.
Had this Problem on an other device . No recovery flash with fastboot . Dont no how , but Trwp manager APP from playstore did it .
you have to flash twrp right.. if you use a toolkit or flash the recovery with fastboot boot(instead of fastboot flash) then it will only boot into twrp 1 time, then you will need to flash it again if you want to use it again.
Strephon Alkhalikoi said:
What happens when you connect the N6 to the PC and issue the fastboot boot recovery command?
Check your volume controls. They may be stuck.
Click to expand...
Click to collapse
If I'm using "adb reboot recovery", the N6 is rebooting and load the recovery but I only see the TWRP boot logo. Then it's rebooting from the Google logo...
I've flashed the recovery with "fastboot flash recovery recovery.img", but I've also tried with flashify and still the same problem !
In fact I think that's a problem which is related to the upgrade of the bootloader or the radio. I'm with the 71.21 bootloader which came with the latest radio (from the Android N images). Even with the previous bootloader the problem occured. So until which bootloader can I downgrade without bricking my phone ?
Thanks in advance for your suggestions !
marcp39 said:
If I'm using "adb reboot recovery", the N6 is rebooting and load the recovery but I only see the TWRP boot logo. Then it's rebooting from the Google logo...
I've flashed the recovery with "fastboot flash recovery recovery.img", but I've also tried with flashify and still the same problem !
In fact I think that's a problem which is related to the upgrade of the bootloader or the radio. I'm with the 71.21 bootloader which came with the latest radio (from the Android N images). Even with the previous bootloader the problem occured. So until which bootloader can I downgrade without bricking my phone ?
Thanks in advance for your suggestions !
Click to expand...
Click to collapse
yea, you can downgrade, but why? and why are you doing adb reboot recovery? you know that you can use a terminal emulator app on your phone and then reboot recovery using it? every custom rom should also have a reboot recovery option when pressing the power button as well.
simms22 said:
yea, you can downgrade, but why? and why are you doing adb reboot recovery? you know that you can use a terminal emulator app on your phone and then reboot recovery using it? every custom rom should also have a reboot recovery option when pressing the power button as well.
Click to expand...
Click to collapse
I want to try to downgrade the bootloader because this problem occured just after changing it. I've not modified anything else.
I've tried with a terminal emulator, same symptoms.
If I'm using the reboot menu of AICP it's exactly the same behaviour. And that's the usual function I'm using to reboot to recovery. In fact all the commands are working, the N6 is rebooting to recovery but I just see the TWRP logo, then it reboots the phone to the google logo, then it starts the system...
Even if I'm launching recovery from the bootloader, I'm getting the same result.
marcp39 said:
I want to try to downgrade the bootloader because this problem occured just after changing it. I've not modified anything else.
I've tried with a terminal emulator, same symptoms.
If I'm using the reboot menu of AICP it's exactly the same behaviour. And that's the usual function I'm using to reboot to recovery. In fact all the commands are working, the N6 is rebooting to recovery but I just see the TWRP logo, then it reboots the phone to the google logo, then it starts the system...
Even if I'm launching recovery from the bootloader, I'm getting the same result.
Click to expand...
Click to collapse
sounds like you need to clear the recovery partition, then flash twrp again.
simms22 said:
sounds like you need to clear the recovery partition, then flash twrp again.
Click to expand...
Click to collapse
With "fastboot erase recovery" ?
marcp39 said:
With "fastboot erase recovery" ?
Click to expand...
Click to collapse
honestly, i dont remember how.
So here are my last attempts:
-I've tried to clean the cache with "fastboot erase cache", I thought it could be corrupted. BIG MISTAKE ! This time the phone is bootlooping when lauching the ROM...
And of course, I'm making some backups but they are on the "internal sd"... So I can't access my files anymore !
-I've also tried "fastboot erase recovery" and reflashed recovery. No improvement.
-I've downgraded the bootloader from 71.21 to 71.18. Nothing changed.
-I was asking myself if last time I didn't enter a wrong command in typing "fastboot flash boot bootloader.img" instead of "fastboot flash bootloader bootloader.img". So even if I've added benzocore on my AICP ROM, I decided to flash the boot.img from AICP zipfile on the boot partition (+ erase boot). So this time no more bootlooping of the ROM, because I'm stuck on the google logo :crying:...
I've never encounter such a desperate situation ! I don't even understand why I can't boot in recovery...
I could reflash a factory image on my phone, but this would erase all my datas !
Do you think I could reflash a factory image (except the data partition), just to be able to get a valid recovery, and access my files from the computer ? Then I could erase data partition, and reflash a new ROM ?
I don't want to precipitate the next actions because I don't have any joker... and with this stupid idea of not putting any µSD slot in most phones nowadays we're captive of the situation when the phone is bricked ! We can't recover data easily, even with adb pull (which does not work in my case of course).
So please share your ideas, they'll be welcome ! I've read A LOT of posts on XDA and others, but no solution until now....
TIBU to back up your data and then move the data on to PC. Use NRT WUG Fresh tool to flash MOB30M (stock, unroot) and then root/recovery and then start over. If you don't want encrypt then "format data" once in TWRP and then flash custom kernel like HellsCore to not force encrypt.
marcp39 said:
I could reflash a factory image on my phone, but this would erase all my datas !
Click to expand...
Click to collapse
Don't use FlashAll, it's usually broken, anyway. But rather unpack the zip, flash boot and system. And either flash cache or erase it. It does the same.
HueyT said:
TIBU to back up your data and then move the data on to PC. Use NRT WUG Fresh tool to flash MOB30M (stock, unroot) and then root/recovery and then start over. If you don't want encrypt then "format data" once in TWRP and then flash custom kernel like HellsCore to not force encrypt.
Click to expand...
Click to collapse
TIBU for Titanium Backup ? How do you want I use this app since I don't have access to android, only to the bootloader ? You want me to install MOB30M without wiping the datas from my current rom, export the result and then wipe everything to make a clean install ?
marcp39 said:
TIBU for Titanium Backup ? How do you want I use this app since I don't have access to android, only to the bootloader ? You want me to install MOB30M without wiping the datas from my current rom, export the result and then wipe everything to make a clean install ?
Click to expand...
Click to collapse
If you can't backup your data via an app, then you're stuck to flash back to stock losing your info. You can move stuff from your "internal sd" and "data" partitions to your laptop by using fastboot command but I don't remember the exact command
---------- Post added at 03:16 PM ---------- Previous post was at 03:12 PM ----------
HueyT said:
If you can't backup your data via an app, then you're stuck to flash back to stock losing your info. You can move stuff from your "internal sd" and "data" partitions to your laptop by using fastboot command but I don't remember the exact command
Click to expand...
Click to collapse
Just looked it up. You can't backup your data via fastboot but you can using "adb" command. The problem is getting "adb" to work requires "USB Debugging" to be on and android working Thus, you're likely stuck losing your data.
HueyT said:
If you can't backup your data via an app, then you're stuck to flash back to stock losing your info. You can move stuff from your "internal sd" and "data" partitions to your laptop by using fastboot command but I don't remember the exact command
---------- Post added at 03:16 PM ---------- Previous post was at 03:12 PM ----------
Just looked it up. You can't backup your data via fastboot but you can using "adb" command. The problem is getting "adb" to work requires "USB Debugging" to be on and android working Thus, you're likely stuck losing your data.
Click to expand...
Click to collapse
Yeah unfortunately we can do it with adb (like this http://stackoverflow.com/questions/8650407/how-to-copy-selected-files-from-android-with-adb-pull) but not with fastboot. Tomorrow I'll try to flash each *.img from MOB30M separately and see if I can recover a working recovery to access to my datas ! Thanks for your answer btw.
Hello everyone !
So here are the last news...
I've tried an older TWRP like 2.8.x.x same problem.
I've flashed all the *.img from MOB30M except data, but my recovery was still not accessible !!!
So I was resigned to format my data and flash the *.img on it.
This time it worked, my N6 was coming back to life !!! Then I had to root it, flash the recovery, remove encryption and format data with F2FS !
I still don't understand how a corrupted (?) data partition could block the running of recovery, that's strange !
So now I have to restore the data from a TWRP image dated 04-16 I had on my NAS...I can tell you that in the future I won't let my recent backups only on internal storage !
Will you believe me if I tell you that the same problem is occuring again :crying: ?
Several days ago, it started when the impossibility to enter the recovery but this time it does not reboot in bootloader, just stuck... Now I got random reboots and stange behaviour from applications !
I NEVER had a serious problem like that with my N6 before. So I don't understand how can I get data corruption like this ? Last time I was using Benzo kernel, now DeYuS kernel but with no exceptional settings, no overclocking.
I've just disabled "forceencrypt" and convert data to F2FS (no problem before).
So does anyone have a clue about this problem ?

Stucked in Encryption Unsuccesful help!

I need help, I was trying to root my Oneplus 3T, with stock OOS 4.0.2. After following all the steps, I flashed the dm-verity to keep with the steps, and that worked. But after formatting data, as it was suggested, it gave me an error. It showed like everything was encrypted which shouldn't due to the flash of the dm-verity and now I'm stucked in not a bootloop because the phone actually boots but I cant do anything because the encryption error takes me back to the recovery, which shows an error etc. Is there any tutorial to fully recover the phone from this point? Thank you very much in advance.
Did you try flashing SuperSU after flashing dm-verity? If the zip isn't on your phone at this point, you can go into bootloader mode and use adb to push the SuperSU zip on and flash it that way.
You can use the toolkit to push the files if you want, it'll be easier that way: https://forum.xda-developers.com/oneplus-3t/development/toolkit-oneplus-3t-toolkit-unlock-t3507729
If all else fails, flashing a clean rom always works.
Anova's Origin said:
Did you try flashing SuperSU after flashing dm-verity? If the zip isn't on your phone at this point, you can go into bootloader mode and use adb to push the SuperSU zip on and flash it that way.
You can use the toolkit to push the files if you want, it'll be easier that way: https://forum.xda-developers.com/oneplus-3t/development/toolkit-oneplus-3t-toolkit-unlock-t3507729
If all else fails, flashing a clean rom always works.
Click to expand...
Click to collapse
Now I'm stuck in a bootloop after reflashing stock recovery. If i reflash the boot.img via fastboot from the .zip of the official OOS 4.0.1, will it work? Thank you very much
Not sure why flashing recovery would cause a bootloop. Might be safer just to sideload a fresh ROM. If you're worried about losing files, you can use adb to pull whatever you need first from sdcard prior to flashing.
What I did in a similar situation was to reflash the stock recovery first using the unbrick-toolkit. When booting into recovery then, there is an option "forget password" when it asks you to enter the password. If you select that, it will simply wipe your phone completely and you can start over again.

Trying to install TWRP on my Nexus 6 - keeps reverting back to stock recover

I have tried a number of times to install TWRP (unrooted) on my Nexus 6. I am following the instructions from here
https://twrp.me/devices/motorolanexus6.html
I am noting the warnings here
Note many devices will replace your custom recovery automatically during first boot. To prevent this, use Google to find the proper key combo to enter recovery. After typing fastboot reboot, hold the key combo and boot to TWRP. Once TWRP is booted, TWRP will patch the stock ROM to prevent the stock ROM from replacing TWRP. If you don't follow this step, you will have to repeat the install.
Once I issue the fastboot reboot command before the Nexus 6 shows anything on the display I press power and vol down and get into TWRP. It seems to what it's supposed to do (presumably patch the stock ROM) and then I reboot to Android.
But the next time I boot to recovery I end up with stock recovery again. I have tried this a number of times and while I can get TWRP installed it always reverts to stock recovery after the next restart.
Is there something else I have missed here in the instructions? They seem fairly clear.
Not that I think it matters but I am running 7.1.1 (flashed with the OTA image since I was not getting OTA updates)
Thanks
Instead of using the fastboot command to reboot to recovery after you have flashed TWRP do it manually. Been a while but I believe that should work.
Dont use the fastboot reboot command, use the volume keys to enter twrp recovery after flashing twrp in fastboot mode
Once you are in twrp swipe to allow changes and if needed change twrp settings, after that reboot into rom.
TMG1961 said:
Dont use the fastboot reboot command, use the volume keys to enter twrp recovery after flashing twrp in fastboot mode
Once you are in twrp swipe to allow changes and if needed change twrp settings, after that reboot into rom.
Click to expand...
Click to collapse
I have done that several times. This is the screen I see when TWRP is loading for the first time.
Not sure if those red messages are fatal or not
When I am in TWRP I can reboot to recovery and it gets back to TWRP but if I reboot to system and then try to enter TWRP on a reboot (holding power and volume up/down it boots into the Fastboot and when I choose Recovery mode I send up with stock recovery again.
Am running 7.1.1 myself and flashed the latest TWRP 3.1.1-0
Were did you download the twrp img from? I download mine from https://dl.twrp.me/shamu/ Once i downloaaded it i rename it to recovery.img
I use cmd on laptop andhook up the phone, then run adb reboot bootloader followed by fastboot flash recovery recovery.img, then i use the volume keys to get into twrp, swipe to allow changes and make changes to settings. Then reboot into rom.
TMG1961 said:
Am running 7.1.1 myself and flashed the latest TWRP 3.1.1-0
Were did you download the twrp img from? I download mine from https://dl.twrp.me/shamu/ Once i downloaaded it i rename it to recovery.img
I use cmd on laptop andhook up the phone, then run adb reboot bootloader followed by fastboot flash recovery recovery.img, then i use the volume keys to get into twrp, swipe to allow changes and make changes to settings. Then reboot into rom.
Click to expand...
Click to collapse
That is pretty much what I have been doing. The only difference is, the first time I did this (before I realised it wasn't working), I rebooted from adb and I did see the swipe to allow changes. But since then if I boot from abd or boot from the bootloader, I don't see the TWRP option to swipe to allow changes anymore.
I wonder if it's because the data is encrypted (standard on a N6?)
I checked the box to not show the swipe to allow modification. I have never decrypted my phone and twrp sticks. So not sure why yours isnt sticking.
TMG1961 said:
I checked the box to not show the swipe to allow modification. I have never decrypted my phone and twrp sticks. So not sure why yours isnt sticking.
Click to expand...
Click to collapse
Well the first time I did it I saw that message about allow modification and I agreed. Never seen it again.
The point of installing TWRP was to install a custom ROM. I wonder if I load the ROM image into the phone first, install TWRP and get into the first time, which I can, then install the ROM would that work?
lchiu7 said:
Well the first time I did it I saw that message about allow modification and I agreed. Never seen it again.
The point of installing TWRP was to install a custom ROM. I wonder if I load the ROM image into the phone first, install TWRP and get into the first time, which I can, then install the ROM would that work?
Click to expand...
Click to collapse
After using fastboot to flash TWRP, use the volume and power buttons​ to boot into TWRP, and allow modifications, then make a backup and reboot system. Go back to recovery and if all is well, then flash your ROM. Make sure you've got your TWRP issue fixed first though.
The same thing keeps happening to me. I can't seem to make twrp stick. I'd really appreciate some help.
Depending on what your doing, typically you have to manually boot into recovery after flashing twrp (from fastboot), don't use fastboot reboot xxxx. Use the power/volume key combo to reboot. Then accept either system modification or flash a systemless root solution. This will enable custom recovery to "stick". Otherwise, stock android will overwrite recovery on boot.
The TWRP thread has discussions about this. Starting at post 1044 should help.
mrcreativity said:
The same thing keeps happening to me. I can't seem to make twrp stick. I'd really appreciate some help.
Click to expand...
Click to collapse
Is your device encrypted before you flash TWRP?
Yes it is encrypted.
Anyway, I tried all the various methods and combinations but ended up going back to stock recovery. What worked was flashing SU after TWRP.
I'm running pure nexus now and enjoying it.

Bootloop after twrp restore - twrp-3.2.3-1-payton.img

Summary:
1. Flash factory image onto phone successfully
2. Install twrp and make a backup
3. Restore backup after reboot and I'm stuck in a bootloop
I have a new fi Moto x4 running Android 8.1 that I'm attempting to set up. I've reset this phone a bunch of times so here is the standards process:
1. Flash factory firmware as shown in this thread:
https://forum.xda-developers.com/moto-x4/how-to/guide-how-to-flash-official-factory-t3808348
I'm using: PAYTON_FI_OPW28.46-13_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip
2. After flashing, start up the phone and it works fine.
3. Reboot into the bootloader and boot to twrp using: fastboot boot twrp-3.2.3-1-payton.img
4. Copy in the twrp install file using: adb push twrp-installer-payton-3.2.3-1.zip /sdcard
5. Install the zip via the twrp Install function
6. Reboot the phone into the bootloader then start recovery
7. Use the twrp Backup function to create a backup of the Boot, Data and System partitions on Internal Storage (plenty of space).
8. Reboot the phone into the bootloader then start recover
9. Use the twrp Restore function to restore the backup. Finishes fine.
10. Reboot phone to system but the load won't finish. Phone just alternates between the Android One and the Motorola splash screens. Left it for an hour at one point just to be sure. No love.
Things I have tried:
1. Using twrp via fastboot boot and a hard install
2. Making backups to the internal and external memory cards
3. Changing the partitions in the backup
4. Wiping everything except the external sim card before performing a restore
If anyone has any thoughts I would love to here them.
Thank you!
I'm having a similar problem and found this old thread. I am on stock pie rooted and made a twrp backup this morning so that I could try flashing some custom ROMs. After successfully installing a custom ROM I attempted to restore the backup and return to stock but just get bootloop. I am able to get back to to twrp and the phone will boot after a factory reset, but even if I just restore data I get bootloop. I'm wondering what I am doing wrong with restoring the backup. Any thoughts? Thanks.
I have the same problem as you are. After I finished install all applications, I made a backup with twrp-3.2.3-1-payton. Then next day I restore it from the backup, after finished backup, it goes to bootloop forever. My version is OPWS28.46.21.12, I download stock rom OPW28.46-13 but afraid to flash this rom since it is the lower version might be break the phone if not backward compatible. Then I search the web and found your message and follow this side fund a higher version of the stock rom OPWS28.46-21-14. I download it and flash it. After flashing complete and boot up, it saying new OTA update available, I don't want to update the rom since I want my phone rom version is same as the stock rom I have downloaded into my PC just in case in the future I accidentally doing something wrong I can flash back the stock rom without worrying the backward compatibility problem.
t-bob said:
I'm having a similar problem and found this old thread. I am on stock pie rooted and made a twrp backup this morning so that I could try flashing some custom ROMs. After successfully installing a custom ROM I attempted to restore the backup and return to stock but just get bootloop. I am able to get back to to twrp and the phone will boot after a factory reset, but even if I just restore data I get bootloop. I'm wondering what I am doing wrong with restoring the backup. Any thoughts? Thanks.
Click to expand...
Click to collapse
I'm a bit slow on the response - but my first thought is manually flash stock rom over your restore without wiping data
I'm able flash the latest stock rom of FI_9.0_PPWS29.69-26-4 and reinstall twrp-3.2.3-1-payton. Then I restore data only that backup from previous rom, I get bootloop again after restore the data only from TWRP. The I reflash FI_9.0_PPWS29.69-26-4 again, install twrp and root it with Magisk. Restore data from cloud google drive automatically. And this time is successfully without bootloop.

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