yashsingh1/xdaforums huggingface dataset:
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Jager:
remove the "10" folders from those directories. Those are from a second user on your device. The error clearly says that folder is the issue.

You could probably also do this command "pm remove-user 10" as stated in other posts that tell you how to deal with that error.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] anthony10126:
Download terminal emulator from play store..

Grant root permission

Open and type

Pm remove-user 999

Press enter

Close terminal

Reboot

Check to make sure files are removed after reboot but you should be good.

Worked for me. Very easy.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
Yes it was i'm thinking

Your error is saying you have a multi user with name 10, so you should remove that user
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] TomeG2kc:
Guys, thank you very much, it's working. I used pm remove-user 10 and now I made all partitions backup including DATA.

It's very nice to find help, thank to you guys.

Wysłane z mojego ONEPLUS A6013 przy użyciu Tapatalka
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
Not a problem, sorry if I have not been very specific, i was with the phone
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] kevk60:
Not sure if this will help. I think this is what you're looking for.

https://forums.oneplus.com/threads/fix-wrong-pin-pattern-when-restoring-twrp-nandroid-backup.452384/
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] tet-bundy:
Just wondering. Thi .img is basically a full boot .img pre-patched with twrp?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] ayed7809:
Thanks
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] lollyjay:
No. The img is meant to be booted temporarily using fastboot boot twrp.img. The installer zip is installed from the temporarily booted img
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] VenomTheCat:
I screwed something up on my McLaren Edition.

It seemed to go well until I installed the twrp-installer-fajita-3.2.3-1.zip. After that when browsing to install the Magisk, all the folders have weird names.

If I try to boot to the system it just comes back to TWRP

Not sure what to do to solve this.

Resolved this by doing the following

1. Flash the latest Full Oxygen OS Zip

2. Flash the TWRP installer Zip

3. Reboot to RECOVERY to make sure TWRP stays and continue to root.

4. Flash the latest Magisk to maintain root

5. Reboot System and Enjoy
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] TENlll423:
Try using 3.2.3-26 fastboot boot IMG. Then see if it's decrypted and install -26 installer. It won't boot to system until you get Magisk flashed.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] VenomTheCat:
Thank you for your help I had to wipe the data, internal storage and perform these steps

1. Flash the latest Full Oxygen OS Zip

2. Flash the TWRP installer Zip

3. Reboot to RECOVERY to make sure TWRP stays and continue to root.

4. Flash the latest Magisk to maintain root

5. Reboot System
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] david72262:
Finally put twrp to use backup almost 11gigs 111 seconds restored it in 247 seconds. Did not need to remove screen lock settings flashed a test build posp gaaps magicdisk all good no encryption issues or anything. Nice work latest works great.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Giansi:
Nice news. Another successfully restored backup.

Which partitions did you restore exactly?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] david72262:
All of them except for vendor and system I use their counterparts with the image extension.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] rob!n:
I was on stock 9.0.11

1. Unlocked bootloader

2. boot twrp version 26. And flashed installer, reboot twrp,flash magisk and booted to OOS.

3. Reboot twrp, swipe everything including system except internal storage.

4. Flash OOS 9.0.7 zip and flash the same zip again without rebooting.( I was not sure about this step).

5. Flash twrp installer and when I tried to reboot to twrp it stated no os is installed. I swiped and rebooted anyway . and BAMM

6. TWRP CANNOT DECRYPT ANY MORE. KINDA FELT STUCK. BUT THEN I HAD TO WIPE INTERNAL STORAGE, CONNECT IT TO PC AND COPIED CRDROID , TWRP FLASHER , MAGISK AND GAPPS. AND DID CR DROID.

IS .26 VERSION NOT compatible WITH 9.0.7 or what did I do wrong. Why twrp couldn't decrypt??
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] isoladisegnata:
the same for me

but strangely when I turned off and on again the cell phone OOS left
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] nostradomis:
No goodbye?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] lollyjay:
Lol
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] wickedesires:
Hello, I'm also getting error 255. I've been pouring over the forum for several hours to try and find my exact problem elsewhere. I waited a few days hoping the .11 update problems had been solved, and it seemed they were. I started by updating to latest twrp in this thread (.26) rebooted and took a backup, and all worked fine. Flashed the full .11 update then twrp again, rebooted recovery, then flashed magisk... Bootloop. I didnt uninstall magisk before starting and assume that's my problem there. I tried to restore the backup i just took and got the error 255 for the data partition. I attempted all the suggested fixes I've seen- Manually removing all instances of "999" in /data and pm remove-user 999 in terminal emulator after wiping and flashing .11 clean. None of them existed, I've never used parallel apps or a second user. The log file doesn't actually show "error 255' anywhere, but the last entry in it is in pic below. If helpful I can provide the entire log. I had maps disabled as I use waze and was trying to find a way to get google to open all maps links in it (though that's never been an issue before. I would like to be able to recover the previous setup even though I lost all my storage data. I didn't just come ask instead of searching myself but every solution I've found is null in my case. Any and all help is appreciated. Thank you.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] StykerB:
This doesn't work, after rebooting to twrp in step 3 you can no longer decrypt your internal storage due to not having magisk installed on the freshly flashed new room slot.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] lollyjay:
https://xdaforums.com/oneplus-6t/de...ial-twrp-touch-recovery-t3861482/post78582323
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] replica9000:
That's quick. My last backup took 1295 seconds.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] david72262:
Things went down hill today got locked out of phone deleting lock settings. db doesn't work like in the old days. Ended up back on stocked and locked again. Somehow wiping data wipes my whole phone. Left me with no backups no files no operating system very weird.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] :
Yeah i learned this recently as well
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] lord_danko:
Hi, I have installed 9.0.11 and twrp 3.2.3-26 and everything is fine, but when I install the magisk and the system starts, a message goes out that says "turning off" and returns to the recovery again. Help please, does anyone know what happens? Thanks
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] wickedesires:
If you'd read the whole post you'd have found I tried all that already. Thanks anyway.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] lollyjay:
Sorry I didn't see that. Then you should provide logs.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] wickedesires:
https://xdaforums.com/showpost.php?p=78594748&postcount=1721
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] lollyjay:
I'll have a look
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Nsane457:
When this happened to me, I reflashed all my magisk modules in TWRP and that fixed it.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] wickedesires:
I tried again using suggestions from elsewhere and while it hasn't yet worked I realized i didn't copy the whole log somehow. I'm going to delete the previous one and I'll link the newer one here. If you get a chance to look, cool. If not, no worries. From what I've gathered it may be because the phone was encrypted when i took the backup and got wiped before trying to restore. If I find a solution I'll post it in case anyone else has the same problem.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] stefr07:
I am on 9.11 and .26 twrp and my phone is secured with scheme and fp. Twrp did not decrypt my storage. I have to remove shema and fp to see it decrypted in recovery. I uninstall magisk, flash twrp installer, reapply magisk...but it remain in that state.. is it a feature or can i fix it ?

But this everything work fine
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
I would like to apologize to everyone for the lack of presence, but at this moment I do not even have time to read the messages, unfortunately my mother is in hospital and I have to prepare university exams, as soon as I can I will try to answer all

tar_extract_file(): failed to extract //data/system_de/0/persisted_taskIds.txt !!!

First time i saw this error, need a bit to check it.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Araa01:
Goo to chill. I hope soo your mom recovery health, i must get a free time. Now we have probably most stable OFFICIAL twrp. Get itself little vacation. We will be waiting for u :).
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] kevk60:
Good luck on your exams and hope all is well with your mother. Family comes first dude. We can wait. Have a good one.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] lord_danko:
Thank you very much, I have reinstalled the modules and it works. a greeting:D
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] iron@ss:
So sorry to learn that your mother is in hospital. Both she and your University exams must come first.

I think I can speak on behalf of the other members on this thread, when I say that we wish your mother a swift and speedy recovery.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] VenomTheCat:
It sure worked for me.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] tet-bundy:
Thanks but that wasn't exactly my question. I know how to use it etc but I'd like to have some technical insight here because i guess as it obiously can he booted it has to have some kind of kernel in it too hasn't it? More of an academic question u see. Not like i understood too much about these things but i'd like to :)
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] lollyjay:
There is no recovery partition on this device. The recovery is now part of the boot partition. That is why you cannot flash the twrp.img. The twrp installer injects the recovery files into the boot. The twrp.img has its own kernel.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] asfau:
Dude, you do you. Take care of your mother and your education. Both are far more important than anything on here. There are plenty of others who can help out.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] twinnfamous:
Have u tried the test twrp in my thread
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] wickedesires:
No need to apologise for anything. Take care of your priorities. Thank for responding at all, I have to say I probably wouldn't. Good luck on exams, and I sincerely hope your mother gets better.

---------- Post added at 01:49 PM ---------- Previous post was at 01:46 PM ----------

I don't believe so, but I did try with 3 different versions of twrp. The one I had before upgrading, the .26 "unofficial installer", and the .1 official. None made any difference and the same happens with 3 different backups I took at various times.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] dl200010:
I tried to ask this, but it was completely ignored. Can someone answer it?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
The only one difference is that the one on the official site have not the notch theme
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] raymund08:
Can I use the official builds on OOS 9.0.11?

---------- Post added at 05:25 PM ---------- Previous post was at 05:11 PM ----------

Can I use the official builds on OOS 9.0.11? Or the unofficial 3.2.3-26?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] ayed78:
how can i disable password on twrp l,because i cant use my password anymore,i use previous password still same cant unlock.it works before but after change rom it wont
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] tet-bundy:
Please refer to xda rules. In this case it boils down to: read the post right above yours

---------- Post added at 06:39 PM ---------- Previous post was at 06:37 PM ----------

Sounds like you can't decrypt data anymore. I understand u flashed the rom on both slots... Hence decryption is broken. Has nothing to do with your actual pw.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] ayed78:
[/COLOR]

Sounds like you can't decrypt data anymore. I understand u flashed the rom on both slots... Hence decryption is broken. Has nothing to do with your actual pw.[/QUOTE]

what default password? did you know,because message appear decryption by default password
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] tet-bundy:
I didn't say anything about a default password. I suspect your password is actually the right one but you flashed whatever custom rom to both slots. In this case twrp can not decrypt your data regardless if you pass the correct password or not. I don't know what you did but i suspect you did not follow the rom flashing instructions correctly. Hence i guess u need to start from scratch if you want to be able to decrypt data in twrp again. Anyway best refer to your rom's thread.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] ayed78:
anyway im follow instruction but that intsruction never works.....:D
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] tet-bundy:
I've seen people complaining about this in rom threads... Anyway the cause of your issues seems to be your custom rom/the way you flashed it. I don't know as you didn't mention what exactly you did and even then i'm not overly experienced in flashing a/b devices. Though it seems to me that Until you went back to stock you won't be able to decrypt. Twrp can not do anything about it (atm?)...
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] ayed7809:
Thanks for answer,anyway i know how to solve it.:cowboy:
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Texan1:
Just got this notification via the Oxygen Updater app, is this something we will be able to rectify in our TWRP version?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Striatum_bdr:
It's the point of guidelines present in the OTA thread in Guide News section. Manual update with TWRP is explained there. Takes 5 minutes to update.

And due to the fact that you need to flash again TWRP and Magisk after OTA I don't see the point of having an automated procedure that breaks custom recovery
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Texan1:
The notification made it sound as though you could only install via local upgrade method if you were not rooted. I installed the 9.0.11 update via this method and my phone is rooted, with no issue but was concerned this was no longer going to be possible?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] kantjer:
Also the app uses Open Recovey Script, and that doesn't support FBE (file based encryption) so even if the app was able to find the script it's still not going to work because it can't read it.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] paatha13:
Can someone who decrypted the device tell us the exact steps need to follow or a spesific link.

I used from 5T being always decrypted for easily doing whatever I want without nedded format data for whatever reason.

Does this guide works on 6T too?

https://xdaforums.com/oneplus-6/how-to/tutorial-decrypt-flash-rom-pie-oreo-roms-t3838643
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Striatum_bdr:
Please read first two posts and eventually other guides

https://xdaforums.com/oneplus-6t/how-to/official-oxygenos-9-0-4-ota-oneplus-6t-t3860953
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] d0e01:
Wish your mother a speedy recovery and good lucky with your exams
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Stogie87:
I have the same issue since i tried today to update my havoc OS build. I wiped system and flashed the rom on both partitions, flashed twrp, reboot, flashed Gapps on both parritions and magisk.

Now i also get error 255.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] rhodry999:
Thanks! I didn't do it just booted from other slot disabled the magisk modules and changed slots again and all good. many thanks for the suggestion!
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Stogie87:
Hi there,

i found a solution through my logs. The issue was caused by several corrupted files on my storage which twrp can not backup/copy.
You find the names of the corrupted files at the end of your log-files with the info "error".
Only problem is, that you maybe have to take several logfiles to find all corrupted files, because on every log only one issue occurs.

[MENTION=4712355]mauronofrio[/MENTION]

A solution for twrp could be to skip corrupted files during backup process!?

In my case the corrputed files were the folders:

1. /data/misc_ce/10

2. /data/system_ce/10

3. /data/vendor_ce/10

4. /data/user/10

I had to delete all these "10-folders" and the problem was fixed. Now i can make backups again.
Maybe in your case the 255-problem occurs because of the same folders.

You can check this, if you try to copying the folders to your internal download folder.
If it fails, then maybe you have the same issue. Try to delete them. But the better and more secure solution is to check the end of your logfile, which shows, which folder or file twrp can't backuo. After this, clean cash/dalvik.

Regards

Stogie
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] wickedesires:
I'll give it a try, thanks for the tip. I did the same a couple days ago for the first 2 errors it threw, but didn't take the process to it's conclusion. But just as you said after I deleted the first one, the second one came up in a different folder with the same name. Should've rode it out to the end but after many hours I was tired of messing with it. I'll give it a try tomorrow though, thanks again!:highfive:
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Honda21gg:
Same problem with encryption. It won't decrypt I've no security on what so ever and still have that problem .
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] nlua:
So... when's the next update?

Just kidding! No apologies needed. And as others have said take care of yourself and your family first. Hopefully all is well with your mother.

Not sure what your exams are on but I'm a pharmacist and if it's related I'd be happy to help out if possible as I'm sure others would be as well. All you got to do is just ask. We appreciate all you've done for the community. Best of luck! [emoji1360]
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] twinnfamous:
Have you tried a different twrp?

There's a test twrp in my thread try that.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Honda21gg:
Cheers I'll give it a bash . Thanks
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] cultofluna:
Where is this thread?

EDIT ..Nevermind..found it
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
Hi to all again, here there is a new 3.2.3-28 version:

Added Vendor Option in Wipe Menu

Improved decryption for more roms

TWRP 3.2.3-28 Unofficial by mauronofrio

TWRP 3.2.3-28 Unofficial Installer by mauronofrio

As laready said that error is for multiple users or double app, and there is a link in the first will help you to delete them fast. It's impossible to exclude that folders, it should be a too specific option.

New build comes now
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] reppi:
Backing up OOS without issues.

Flashing OOS no issues.

Wiping no issues.

Flashing havoc no issues.

Backing up havoc no issues.

Restoring OOS backup no issues.

All this without any pin or fingerprint set. I think it's the easiest way to remove all Lockscreen Security so you won't have decrypting issues.

But make sure your backup you want to restore is made without Lockscreen Security as well.

Thanks for your awesome work!
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] H4X0R46:
Backing up system and vendor as images right?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] kevk60:
Thank you for the update. No problems so far.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] STRUZZIN:
Yes I just did mine and used images and worked great.

Erased and did full backup.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] reppi:
Yes correct.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] rob!n:
Decryption working with new liquid and omni rom? Anyone tried it?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] ArlenCheng:
i boot the normal twrp not installer one, after installed and boot into twrp. i format and flash magisk and boot into system, i click the magisk app installed but it occur that magisk 18.0 is not installed, how to fix the problem???
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] TENlll423:
Boot twrp img. Flash twrp installer. Reboot to recovery. Flash Magisk v18. Reboot system. Done ?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] tasoskio:
can you tell us the correct steps??:D:D:D
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] reppi:
It's been said here and in other threads hundreds of times so I won't do it again.

What I can say though is that I flashed havoc on one partition only and before I made sure that in both partitions latest OOS is installed.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
On omni yes, i already tested it
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] blackphanter:
Have you had any locksceen security? Did you delete before making a backup?

Edit.

I have read the earlier post. Thanks.
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] dhoang:
Could you share the steps you flashed omni with twrp?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] Shponglized:
Did you get your 6t already!?
[OnePlus 6T  ROMs, Kernels, Recoveries, & Other Dev] mauronofrio:
Just wipe data and dalvik cache, than flashed the rom, eventually the gapps then twrp installer and magisk.

Yes sure, but i got some problems in family so i'm not a lot active in these days