Nandroid Restore gone wrong - OnePlus 6 Questions & Answers

Hi,
I have tested the liquidremix rom which is great, but I still wanted to go back to my stock OSS
So I started TWRP, hit restore, everything seem to work fine, but when I reboot the system I'm stuck at the boot animation.
When I reboot the device to TWRP and check the file manager or my backup folder there are only cryptic and weird letters...
How do I restore my backup properly ?

Try to go back to TWRP 3.2.1.0 i think that that works

everything is gone, you will have to restore with the brick tool, happened to me last week and still not sure why, apparently backing up with TWRP you only need to ticket DATA and that's it.

You need to do two things whenever you restore with TWRP. First is factory reset in TWRP before the restore (that will wipe data). Second is restore system, boot, and data ONLY.
The weird file names and cryptic letters is from the encryption from the old rom. I strongly recommend that you invest in an OTG flash drive so you can store TWRP backups on it. Then you can properly wipe the phone. On the plus side this has happened to me before and I never needed anything special like the unbrick tool to get my TWRP backup up and running smoothly.

and there is a better twrp than twrp. The official is by Dees Troy and the un-official one by Joe Moss Jr. is here. https://forum.xda-developers.com/oneplus-6/development/recovery-twrp-3-2-2-0-touch-recovery-t3813317
Joe's big improvement is a usable 'mtp', ie. access that thumb drive.
Also puts the vibration back in to the key press.

First if you r seeing weired letters in twrp like xdjdhdhdhd folders. Then go to fastboot mode flash newest twrp. Img then ij recovery first flash your liquid remix furst, then flash twrp installer zip niw reboot to recovery.
Now factory reset your phone.
Now if you have oos backup. Then restore everything except system.
And then restore system alone at last now reboot it will work.

your gonna need the flashable oos 5.1x which is one here
https://forum.xda-developers.com/oneplus-6/how-to/oneplus-6-mirrors-official-oxygen-os-t3792244
fastboot to twrp
abd push the stock.zip to the phone <-assuming you know this.
and flash it from twrp.
reboot
fastboot twrp again and flash twrp.

this is where decryption comes in handy

Restoring backups with twrp will fail almost all the time. I've yet to do a successful restore and I've tried every method. You're gonna have to flash back to stock OOS and start over.
If anyone has successfully restored more than one backup then I would start a new thread with the exact method you used.

That worked.
I still wonder why not to restore system.
If I take a nandroid backup should one backup
system or system image, data or data image ?

I was trying a new rom the Resurection Remix V6.2.0 Android 8.1.0. i wanted to go back to my TWRP Backup of OOS 5.11 . I wiped data/cache/System . Tried to restore rom . it restored successfully but i didnt do wipe data thing. when i tried to reboot twrp blu, the recovery was lost. then i had to fastboot boot reovery. and lot of wierd folders were created on my phone internal memory. All data lost.
i had to flash the full 5.11 stock zip via twrp. tried to reboot again lost in bootloop. Switched back to stock recovery and make a factory reset then it booted.
switched off the phone back to Blu spark TWRP. again wipe data cache and system. Then restore the TWRP Backup previously double saved on a usb drive. This Time it restored successfully and booted as well fine.
i think i should have made a factory reset or format data before restoring from A Lineage OS Rom OS to OOS TWRP Backup
thats what made the whole internal drive mess and to be formatted as well
My Question is it only important to format data and then restore twrp or also backup and make restore of system.img of OOS backup as well

Related

[Q] Can't boot after making backup

I saw that TWRP was updated to 2.3.3, so I first made a backup of boot and recovery partitions in TWRP and named the backup "recovery" with compression enabled. I then rebooted system to use Flash Image GUI and the device hung at the boot animation. I reflashed the kernel in fastboot, wiped cache and dalvik, and it still hangs. I can still boot into recovery (never actually updated). Do I need to reflash the ROM? Was running King Kang and b6.
Edit: Well ended up doing a full wipe restoring rom and tibu. Still no idea what happened though. Making a backup shouldn't mess anything up like this...

TWRP Restore Data and/or System = Bootloop

Something happened to my phone and I succeeded to flash it all new with Android 9.0 which I was on.
But when I try restore twrp backup (data and/or System) I always end up with bootloop.
Tried to reflash Magisk too but doesn't help.
Bootloops right back to TWRP after 2 minutes.
Anyone have any ideas on how I can get my data back from the twrp backup?
Tried to official twrp and bmu_sparks.
Thanks.
timebandi said:
Something happened to my phone and I succeeded to flash it all new with Android 9.0 which I was on.
But when I try restore twrp backup (data and/or System) I always end up with bootloop.
Tried to reflash Magisk too but doesn't help.
Bootloops right back to TWRP after 2 minutes.
Anyone have any ideas on how I can get my data back from the twrp backup?
Tried to official twrp and bmu_sparks.
Thanks.
Click to expand...
Click to collapse
Same thing happened to me yesterday. If you still have access to TWRP, enter it and wipe everything and install newest oxygen pie zip. TWRP is broken for our devie and backups cannot be trusted I'm afraid. Wish I knew this before.
timebandi said:
Something happened to my phone and I succeeded to flash it all new with Android 9.0 which I was on.
But when I try restore twrp backup (data and/or System) I always end up with bootloop.
Tried to reflash Magisk too but doesn't help.
Bootloops right back to TWRP after 2 minutes.
Anyone have any ideas on how I can get my data back from the twrp backup?
Tried to official twrp and bmu_sparks.
Thanks.
Click to expand...
Click to collapse
After restore is complete do not reboot, try the following, it might work,
1-Do not do any wipe,
2-Flash exactly the same ROM which is backed up,
3-Flash twrp,
4-Reboot twrp.
5-Flash Magisk,
8-Reboot system,
In case you are trying to go back from pie to oreo you have to flash roll back rom.
All the best, hope this helps., cheers.
Have tried all that with no luck. But if I do a Factory reset any time after the data restore the phone works but then I dont have any data
This sucks big time.
Have installed all from scratch. Luckly fastboot was working all the time
Some data I could restore with Titanium Backup but not so much I needed/wanted.
Too bad we cant rely on TWRP and its backup/restore feature.
timebandi said:
Have tried all that with no luck. But if I do a Factory reset any time after the data restore the phone works but then I dont have any data
This sucks big time.
Have installed all from scratch. Luckly fastboot was working all the time
Some data I could restore with Titanium Backup but not so much I needed/wanted.
Too bad we cant rely on TWRP and its backup/restore feature.
Click to expand...
Click to collapse
Its good only in the case if you are decrypted, since the time I'm decrypted no such problems, if you want you can try it,
https://forum.xda-developers.com/oneplus-6/how-to/tutorial-decrypt-flash-rom-pie-oreo-roms-t3838643
timebandi said:
Something happened to my phone and I succeeded to flash it all new with Android 9.0 which I was on.
But when I try restore twrp backup (data and/or System) I always end up with bootloop.
Tried to reflash Magisk too but doesn't help.
Bootloops right back to TWRP after 2 minutes.
Anyone have any ideas on how I can get my data back from the twrp backup?
Tried to official twrp and bmu_sparks.
Thanks.
Click to expand...
Click to collapse
Using TWRP backups on this phone is fun but not impossible. This process works for me.
1. Store backups on something other than the phone (I use an OTG card reader and 128 GB SD card)
2. Use a Fastboot Rom of THE EXACT SAME ROM as the backup and let it do it's thing flashing the phone (it will also wipe the phone in the process, which is why you need to store the backup elsewhere)
3. Boot up the phone and go through the whole process of setting it up. Don't worry about installing all your apps.
4. Install TWRP and Magisk if you used it on the backup.
5. Now restore your TWRP backups - just restore system, data, and boot.
I have done this at least 100 times and it has always worked.
I presume the fastboot rom is not only gonna wipe the internal drive but will also lock the bootloader, thats a lot of hassle to do every time you want to restore, but thanks for your suggestions, cheers.
vtec303 said:
I presume the fastboot rom is not only gonna wipe the internal drive but will also lock the bootloader, thats a lot of hassle to do every time you want to restore, but thanks for your suggestions, cheers.
Click to expand...
Click to collapse
The fastboot rom wipes the internal drive but DOES NOT lock the bootloader. Besides, I haven't seen or heard of another way to use TWRP backups without decrypting the phone, and I have security concerns with decrypting the phone.
tabletalker7 said:
The fastboot rom wipes the internal drive but DOES NOT lock the bootloader. Besides, I haven't seen or heard of another way to use TWRP backups without decrypting the phone, and I have security concerns with decrypting the phone.
Click to expand...
Click to collapse
ohh ok, I thought it locks it but thanks for the info, yes thats why I decrypted my device, lets hope in this thread we could find a easy way out to restore sucessfully while encrypted, have you tried just backing up boot, system and data and than restoring it ? cheers
vtec303 said:
ohh ok, I thought it locks it but thanks for the info, yes thats why I decrypted my device, lets hope in this thread we could find a easy way out to restore sucessfully while encrypted, have you tried just backing up boot, system and data and than restoring it ? cheers
Click to expand...
Click to collapse
Yes I tried. Without the fastboot rom to reset everything that stupid encryption bites you in the butt.
Yep. I just restored an entire nandbackup, and now my phone boots to a quailcomm dump screen only, can't fastboot into recovery or anything. Guess my new plans tonight involve fixing this thing.
I also got a bootloop after restoring 8.1 android with twrp 3.3.1 by nemo nemo on my leagoo xrover.
factory reset and wiping everything exept microsd card didnt help...
thanks for some help
vtec303 said:
After restore is complete do not reboot, try the following, it might work,
1-Do not do any wipe,
2-Flash exactly the same ROM which is backed up,
3-Flash twrp,
4-Reboot twrp.
5-Flash Magisk,
8-Reboot system,
In case you are trying to go back from pie to oreo you have to flash roll back rom.
All the best, hope this helps., cheers.
Click to expand...
Click to collapse
Thanks a lot, man. it worked for me

Need Help to restore backup with TWRP

Can anybody help?
My HTC U11 still run on Nougat.
Yesterday I want to update with the newer version of Nougat (Not Oreo)
I already make a data backup with TWRP, big backup 22Gb.
Then I update the new stock Rom from PC, it had no problem.
Go to download mode, and then install TWRP again with ADB from PC.
Go to TWRP Recovery, it still works.
The last thing I do is to try to restore the 22Gb data back to my phone.
And it always get error on 9% with "extractTarFork() process ended with ERROR: 255"
I already change with difference TWRP from 3.1.1.0 to 3.2.3.0, still the same.
Restore to previous version of Nougat with TWRP (system, system image, boot image, recovery). Try to restore backup data again with no luck.
Try to check MD5 with the backup data, and it said matched, no corrupt.
Already try searching in the web, but with no solution too.
Do anyone ever have the same problem and solved it?
A San said:
Can anybody help?
My HTC U11 still run on Nougat.
Yesterday I want to update with the newer version of Nougat (Not Oreo)
I already make a data backup with TWRP, big backup 22Gb.
Then I update the new stock Rom from PC, it had no problem.
Go to download mode, and then install TWRP again with ADB from PC.
Go to TWRP Recovery, it still works.
The last thing I do is to try to restore the 22Gb data back to my phone.
And it always get error on 9% with "extractTarFork() process ended with ERROR: 255"
I already change with difference TWRP from 3.1.1.0 to 3.2.3.0, still the same.
Restore to previous version of Nougat with TWRP (system, system image, boot image, recovery). Try to restore backup data again with no luck.
Try to check MD5 with the backup data, and it said matched, no corrupt.
Already try searching in the web, but with no solution too.
Do anyone ever have the same problem and solved it?
Click to expand...
Click to collapse
Did u try a format in twrp before installing the backup? Just thought
No, not format anything. Afraid did something would make the phone brick.
A San said:
Can anybody help?
My HTC U11 still run on Nougat.
Yesterday I want to update with the newer version of Nougat (Not Oreo)
I already make a data backup with TWRP, big backup 22Gb.
Then I update the new stock Rom from PC, it had no problem.
Go to download mode, and then install TWRP again with ADB from PC.
Go to TWRP Recovery, it still works.
The last thing I do is to try to restore the 22Gb data back to my phone.
And it always get error on 9% with "extractTarFork() process ended with ERROR: 255"
I already change with difference TWRP from 3.1.1.0 to 3.2.3.0, still the same.
Restore to previous version of Nougat with TWRP (system, system image, boot image, recovery). Try to restore backup data again with no luck.
Try to check MD5 with the backup data, and it said matched, no corrupt.
Already try searching in the web, but with no solution too.
Do anyone ever have the same problem and solved it?
Click to expand...
Click to collapse
Try to restore os without data , restart system, and if it works restore data
fabrizio b92 said:
Try to restore os without data , restart system, and if it works restore data
Click to expand...
Click to collapse
I have 2 backup. One is for system and one is data. I can restore system feom TWRP recovery, but can't restore data
After restore system,reboot to twrp and restore data
I had this problem and it took me two days to resolve it. I had a good backup and I know it was good because I had used it several times and it worked. But then after doing some system installs I got the error 255 when I tried to restore it. I tried several things to fix it and nothing worked and I really did not want to lose my backup. What did work for me was to use TWRP wipe function to FORMAT the phone. Wiping or factory reset did not work. I lost the contents of my internal SD card but I was able to transfer most to my external SD card. You could also connect the phone with a cable to a computer and use the pull command in ADB to backup the contents f the internal SD card. Given the choice between losing the SD card and the data files I come to lose some of the SD card. Anyway, a FORMAT worked when nothing else did. I read that this error is caused by a lack of space. When I checked the log it seemed that the restore was failing with a particular file which misled me to thinking I had to remove the corrupt file, but since after the format I was able to restore without any problem, it would seem that there was no corrupt data. Hope this helps someone.

TWRP backup and restore not working

Hi all,
I have A6000 with OOS 9.0.5. I installed magisk and TWRP with this guide. I did a full backup, however I cannot restore it. I get error 255 on tarExtractFork(). I use official TWRP 3.3.0. After failed restore I can still boot to (now freshly wiped after attempted restore) system. Even backups of this clean system cannot be restored.
For the record, I don't have a second profile, no "999" user id, I didn't change slots, I removed screen lock before making backup. I still have this problem even if I backup just data, with all other options unticked.
Any help? I come from a device, which didn't have any problems with backup/restore so this is a bummer for me. But I'm sure that users of OP6 can do backups and restores.
Thanks!
For anyone that also has the same problem:
This helped me. I have a feeling that flashing just data through fastboot could be enough, but I didn't have an occasion to check it, as even subsequent restores worked.
I used this to flash device in fastboot mode.

Problem restoring OOS nandroid backup after flashing a custom rom

I'm testing various custom rom so often I want to go back from the custom rom to OOS. I have a twrp backup of my OOS, the problem is that i cannot restore it properly. If, from the custom rom, I reboot to recovery and restore the backup, the phone bootloops. I've also tried to format data and rebooting to recovery before restoring the backup, but this doesn't work either.
The only way I've found to properly restore the backup is to completely reflash OOS via MSM tool (or fastboot), but this takes really a lot of time, because apart from the MSM tool installation itself, it relocks the bootloader so I have to wait for the system to boot up, toggle oem unlock, unlock again the bootloader, wait for the wipe and for another system boot up, boot in twrp using fastboot command, transfer 13GB of data to the phone and then FINALLY restore the backup.
Is there an easier, and most important, faster, way to restore the backup?
https://forum.xda-developers.com/on...nt/recovery-unofficial-twrp-recovery-t3932943
On this link scroll down and read the "tips", if you have backed up rom the way it says you shouldn't have any problems in restoring, hope this helps, cheers

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