yashsingh1/xdaforums huggingface dataset:
[OnePlus 8 / 8 Pro & 8T Cross Device Development] hammerhaigh:
https://android.googleapis.com/packages/ota-api/package/d364962a8d04452a3414e98a80816f10f30af11d.zip

First complete a factory reset, then flash the payload.bin (from the above OTA) using Fastboot Enhance. Install the latest upgrade after boot, then follow the instructions below.

Use Fastboot Enhance to extract the boot.img from payload.bin. From here, move the extracted file to your OnePlus 8 and patch it using Magisk.

You'll want to then move the patched file to your means of flashing. Run fastboot flash boot magisk_patched_boot.img and after it boots, select Magisk. Choose the first selection at the top right of the screen, “Lets go” and select “Direct Install (Recommended).” This will patch the current slots boot image.

Afterwards, reboot and you should be good to go.

You might have to continue to redo this if an upgrade is installed in the future and you failed to patch through Magisk before rebooting. If an OTA is rolled out, before rebooting, open Magisk and select “Install to Inactive Slot (After OTA).”
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Marcyvee:
Does this build work with the last OP8P firmware? Which decryprion method are using?

Edit: tried to boot from fastboot the erofs img on my OP8P running the last evoX rom, but it stucks on fastboot mode logo.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] deepongi:
fastbootd is not workig yet
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Marcyvee:
What do you mean?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] swazau:
Yeah the same happens to me on my op8p.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] deepongi:
i opened a new thread so theres no mix ups of the recoveries

https://xdaforums.com/t/recovery-orangefox-recovery-for-op8-unofficial-beta2-2030203.4548919/

Beta 2 addresses many issues, pls try and reports with logs.

regards.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] deepongi:
updated OP with links for beta 3.

Flashable zips:

https://devuploads.com/h6omb3dsxg5n -> twrp_op8_ext4-3.7.0-b3.zip - 34.8 MB

https://devuploads.com/d6j8gpbyfbzf -> twrp_op8_erofs-3.7.0-b3.zip - 34.8 MB

Flashable imgs

https://devuploads.com/gxv3t5onoapm -> twrp_op8_ext4-3.7.0-b3.img - 100.0 MB

https://devuploads.com/vg662syh8j7j -> twrp_op8_erofs-3.7.0-b3.img - 100.0 MB

donations are always welcomed.

regards.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Marcyvee:
Great! this one can decrypt data even with the last firmware on OP8P!

What's the situation now with A13? Does backup and restore work?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] deepongi:
Yes, it's working
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rodken:
You earlier posted that the earlier builds are for Android 13 and that folks on Android 11 should stay on the later builds.

--- Does that still hold true for any newer builds going forward?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] The Apostle:
I'm also on 11 (11.0.13.13). Have been debating going to F.13 or whatever it's called. Process makes my brain hurt.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] greatestandroidfan:
Ahh, wonderful!

Installed twrp_op8_ext4-3.7.0-b3.zip through Magisk, tested backup & restore - and it works!

On Oneplus 8 Pro EU, A13 crdroid 9.1, F.15 firmware.

Thank you @_infected @deepongi (y)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] The Apostle:
This is amazing. Can you share the steps you used or do the old OOS 11 steps below still work?

Boot to TWRP

Nandroid

Wipe Cache/Dalv

Flash full OOS

Flash TWRP

Reboot to recovery

Flash Magisk

Wipe Cache/Dalv

Reboot system
[OnePlus 8 / 8 Pro & 8T Cross Device Development] greatestandroidfan:
Already had a working device with crdroid 9.1. So just factory default and formatted /data to test restore from backup.

Worst case scenarios for some are to lose /data or device crash. Don't want to go through the hassle to reinstall all the apps and settings every time something goes wrong.

Haven't tested full new installation from scratch e.g. after MSM the thing.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] mednazim:
Please i have oneplus 8 ( in2015_11_f15) oxg os 13 unlocked bootloander i want Root it what i insall version ? Possibl do not wipe data After instal ?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] deepongi:
Install beta 3 erofs version
[OnePlus 8 / 8 Pro & 8T Cross Device Development] samhhmobil:
@deepongi ...: THANKS!!

I did boot via:

# fastboot boot twrp_op8_ext4-3.7.0-b3.img

The ext4 b3 version works great with LineageOS20 (latest build as of 02/18 2023), Android13, decrypting data - and everything else which I need - is working.

I did not test yet Nand-Backup and -Restore. Will do that later...

Thanks again, you're great!

samhhmobil
[OnePlus 8 / 8 Pro & 8T Cross Device Development] mednazim:
After instal b3 erofs wipe data
[OnePlus 8 / 8 Pro & 8T Cross Device Development] mednazim:
After install twrp b3 ... Failed to install magisk zip whyyy ?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rmedure:
I am able to boot twrp_op8_erofs-3.7.0-b3.img as well as flash and boot from recovery partition ... and decrypt data. Cheers!!

A weird thing happens with the backups. After reboot system, I find that the TWRP folder accessed via InternalStorage or device storage is empty (even while viewing in root explorer). I can only find the backups if I navigate to /data/media/0/TWRP/BACKUPS

Anyone know how to get the backups to be available in the system InternalStorage?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] greatestandroidfan:
Ehm, @_infected @deepongi some access rights issues...

After backup & reboot in crDroid 9.1, TWRP folder shows empty...

Has Gxxx A13 changed some folder access right in distribution things?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] tfae:
Have been so long without having TWRP on 8 Pro that I'm now outdated.

Which partitions to backup?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] MapzOr:
"

Instructions

Windows

Install oneplus usb driver, after disabling driver signature enforcement

Download and install platform tools, unzip and add the folder to Windows path,

"Settings > Advanced System Settings > Environment Variables > New"

Example -> http:///imgur.com/a/x8XOofQ

open command prompt, or powershell, and:

fastboot flash recovery_a twrpname.img

fastboot flash recovery_b twrpname.img"

I tried these steps and screwed my phone. I am a total noob at this and I took the steps too literally. Should have changed "fastboot flash recovery_a twrpname.img" to make it clearer for us noobs.

Anyway, my phone went into a loophole. I finally fix it and boot into twrp. But for some reason, I couldn't get into Android. I search online for a solution and I find out that I might have deleted my OS while trying to fix my mistake with twrp. Anyway, I can't get into twrp anymore, I tried to flash twrp again but it still doesn't work.

Right now, the phone is showing me "the current image(boot/recovery) have been destroyed".

What the hell should I do? I have been trying every solution for two days so far.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Incognit420:
Does this not work on a13 f13? I installed but getting bootloader/recovery is corrupted.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rodken:
For future reference

-- Try to avoid flashing recovery to alleviate any mishaps

fastboot boot twrpname.img
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Incognit420:
I tried all methods and none worked. fastboot flash recovery twrp.img, fastboot flash recovery_a and fastboot flash recovery_a then recovery_b. Also tried fastboot boot twrp.img but it gets stuck on bootloader and have to restart. I alsi tried erofs and ext4.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] MapzOr:
This is the first time I do such a thing and I followed the steps like a robot would.

I tried the command:

fastboot flash recovery_a twrp_op8_ext4-3.7.0-b3.img

and it worked, I was able to boot into twrp and then adb sideloaded (or something similar in the twrp menu) oxygenos using a method I found online:
[OnePlus 8 / 8 Pro & 8T Cross Device Development] mednazim:
Please what i do ?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rodken:
Try to 'disable signature verification' under TWRP settings.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] mednazim:
This does not work

Should bé wipe data ?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rodken:
Sometimes the error is because what you are trying to flash is not compatible, it's a safety measure to prevent flashing something that can harm your device.

You might be surprised what kinds of issues that updating/downgrading TWRP will fix.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] jon214m:
You must have flashed the wrong image , so the system doesn't have a record of that file. Go back to you original PATCH_boot.IMG file, there might be on your PC when you Magisk or make a new ones and flash it . Or If you updated something make sure your boot.IMG are matching and patched . It will boot to normal
[OnePlus 8 / 8 Pro & 8T Cross Device Development] deepongi:
could be a bad zip also
[OnePlus 8 / 8 Pro & 8T Cross Device Development] PieceKeepr:
I have looked and cannot find a satisfactory answer to this queston that makes me comfortable. Which version, ext4 or erofs, do I need for a North American version of the OP 8 Pro? Thanks in advance.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
Depends on your OOS version. From the explanations I got on Telegram ext4 = OOS 11 and erofs = OOS 12-13.

Disclaimer: I'm just repeating what I was told, no guarantees lol 😇
[OnePlus 8 / 8 Pro & 8T Cross Device Development] ppajdek:
Adding my two cents, custom roms use ext4 or erofs, you have to find it yourself
[OnePlus 8 / 8 Pro & 8T Cross Device Development] PieceKeepr:
Thanks for the replies, I'll try booting it when I have time instead of flashing it. I'm running the stock rom and recently updated to OOS 13. TWRP used to be so easy to figure out. 🤔
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rmedure:
I'm using twrp_op8_erofs-3.7.0-b3.img on my IN2025 running stock OOS 13 (11_F.15). Definitely attempt boot before flash. Not sure if this is absolutely necessary, but I also made sure to install the new OOS 13 to both slots first.

Cheers!
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rmedure:
Additionally, you can verify the filesystem type of your system partition and data partition using DevCheck or similar app.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
Where exactly in DevCheck though? I looked a while back and couldn't find anything 🤷‍♀️
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Rootk1t:
Stock OOS13 is using EROFS filesystem.

You can find out what the FS is of the "system" (odm, product, vendor, my_*, ...) logical partitions by looking at the output of the mount command.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
Yea I know 13 is erofs, I said that this morning. I meant in DevCheck since that was mentioned earlier, I happen to have it installed and wanted to know for future reference. Thanks though :)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Rootk1t:
DevCheck -> Hardware tab -> Internal Storage -> Filesystem.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
Great - that says f2fs on my stock OOS 11, so I'm even more confused now 😆

Thanks anyway :)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Rootk1t:
Different partitions use different FS.

Data is using F2FS like on your screenshot, System is using ext4 on OOS11.

Tap Show near Disk Partitions.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
Ahhhhh yes, now I see it - thank you so much :)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] PieceKeepr:
It booted fine but the backup fails with error 255. It looks like TWRP stumbles over the swapfile but I'm not sure how to tell it to ignore the file. Can I delete swapfile without any issues? It's been a while, and a couple of phones, since I have messed with it.

I:addFile '/data/nandswap' including root: 1

libtar: ==> set selinux context: u: object_r:nandswap_file:s0

libtar: failed to lookup fscrypt tar policy for '/data/nandswap' - '1ab2bbc9c89884da'

I:Closing tar

Splitting thread ID 0 into archive 20

I:addFile '/data/nandswap/4PI+FDAAAAg,nbYGkZ5miPe+6IVUfQDf' including root: 1

libtar: ==> set selinux context: u: object_r:nandswap_file:s0

I:Error adding file '/data/nandswap/4PI+FDAAAAg,nbYGkZ5miPe+6IVUfQDf' to '/data/media/0/TWRP/BACKUPS/c68e271e/OP8Pro TWRP/data.f2fs.win019'

Error creating backup.

I:ERROR tarList for thread ID 0

Error creating backup.

I:InfoManager saving '/data/media/0/TWRP/BACKUPS/c68e271e/OP8Pro TWRP/data.info'

createTarFork() process ended with ERROR: 255

EDIT: Deleted swapfile and TWRP completed the backup without any other issue and swapfile regenerated on reboot.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] CurlyTemple:
My OP8 keeps trying to reboot to recovery mode, but gets stuck on the screen saying bootloader is unlocked. How do I reboot it to system, so I can get back into ADB debugging?

I tried

fastboot flash recovery_a twrp_op8_ext4-b3.img

and then

fastboot flash recovery_b twrp_op8_ext4-b3.img.

Both showed successful, but the phone now gets stuck on the bootloader unlocked screen. I can press Volume Up + Power to turn it off. It started to system again twice, but now only keeps trying to start to recovery -- which apparently didn't install properly. Please help!
[OnePlus 8 / 8 Pro & 8T Cross Device Development] CurlyTemple:
Also, the phone turns on when I connect the USB cord. I did enable USB debugging for this computer automatically, but adb devices and fastboot devices commands don't return device ID.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rodken:
Your boot sector/partition seems to be corrupted.

-- Use the MSM Tool.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] CurlyTemple:
Do you think this is necessary even after it booted to system twice after the flash, but won't do so again?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rodken:
You have two options

-- Return your device to factory with MSM [because it will happen again]

-- Replace your device
[OnePlus 8 / 8 Pro & 8T Cross Device Development] CurlyTemple:
Thanks. Restored with MSM tool to OOS11. Will start all over.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Abody130:
هل twrp_op8_erofs-3.7.0-b3.img متجذرة بواسطة Majesk؟
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
Please follow the XDA rules and at the very least add an english translation to your post.

And no, TWRP isn't rooted by Magisk, it's a recovery.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] mednazim:
Please no Idea ?!
[OnePlus 8 / 8 Pro & 8T Cross Device Development] CurlyTemple:
I'm in the middle of a TWRP restore process, from a .ab file on my commputer. Data restored successfully, then boot, DTBO, ,EFS, but it's stuck on efs2. How do I safely abort and/or how long do I wait? The .ab file was 26GB and it's been like an hour and a half.

What I had previously done was

-restore to OOS10 using MSM tool (auto matically onto Slot A)

-OTA update onto slot B to OOS 11

-Installed TWRP on both slots via fastboot

-Started restore from. ab file that was LineageforMicroG 18.1 (A11) and then see above.

Do I unplug? Do I try to press something on the TWRP screen? Was it because the .ab file was LOS and not OOS? What will happen?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
Disable Signature Verification in settings. And try using the latest Magisk, not an outdated version.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] mednazim:
Thanks brother i install 25.2 latest
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Abody130:
Sorry, I didn't pay attention to the translation, I'm already translating into English
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Abody130:
Can i root magick in this b3 recovery?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
If you mean that you can root by flashing Magisk in this recovery then sure, why not? Although I don't know if OOS 12 or 13 can still be rooted this easily, someone else will have to reply to that 🤷‍♀️
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Abody130:
When installing twrp and turning on the phone and entering the recovery again, it is not available?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
I don't know, someone else will have to answer that.

I'm not using this version myself since I'm still on OOS 11, so please don't tag ME for any specific questions like that ;)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Primokorn:
I followed OP instructions and ended to the same situation. There should be more (updated?) instructions. @deepongi

I have a OP8P (IN2025) and I was on OOS 13 F.62.

I now have to use this MSM tool to be able to start from scratch.

It seems that we have to BOOT to TWRP instead of FLASHING it.

I'm looking for the proper way to install TWRP now. Can we still flash the flashable zip from Magisk Manager?

EDIT: there's a magiskboot file into the flashable zip and it's written #MAGISK into the updater-script file so I guess it should work with Magisk...

By the way, why there are 2 versions in this thread (ext4 / erofs) while there's only one version in the TWRP official website?

EDIT: All good with :

adb reboot bootloader

fastboot boot twrp_op8_erofs-3.7.0-b3.img

(I'm on OOS13 F62 - OP8P IN2025)

Flash Magisk v25.2.zip
[OnePlus 8 / 8 Pro & 8T Cross Device Development] tfae:
The zip is flashable through Magisk.

I'm with an OP8 Pro (IN2020) running OOS 13.0 IN2023_11_F.62, flashed TWRP (EROFS) as a Magisk module and everything is working fine.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Deavy:
I thought there is no TWRP for OP 8 Pro after A11?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] tfae:
Time to read!
[OnePlus 8 / 8 Pro & 8T Cross Device Development] rodken:
DEL
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Primokorn:
The backup instructions only mention the /data partition. Using OOS 13, there's no possibility to backup/restore the whole system in case of troubles? Using MSM tool or flashing the stock img files (https://droidwin.com/restore-oneplus-8-stock-oxygenos-fastboot-commands) are the only solutions?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] karib97:
The current image(boot/recovery) has been destroyed and can not be boot.

Please flash the correct image or contact sutomer service to fix it ! :eek:

I promise that I read it all !--> MSM did save me.

Now what's the right command line to install twrp first, from pc, after the bootload is unlocked for 8 pro ? please ?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Primokorn:
https://xdaforums.com/t/twrp-3-7-0-...-8-8pro-official-beta-3.4341707/post-88311235
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Marcyvee:
Yesterday I tried to dirty flash a rom update with recovery, but it fails. Does flashing rom work?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] NoFear2244:
If this has already been answered then I apologize. After booting into twrp touchscreen fails to work, that means i need to update my fimrware right?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Primokorn:
I can't download the twrp_op8_erofs-3.7.0-b3.img file. I disabled my adblocker but I can't get the download link...

Could you provide a mirror?

EDIT: no longer necessary, I won't use TWRP this time.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] abrarjahin:
For me, when I flush, TWRP is coming.

But I can't interact.

When I push power button, the unlock slider comes, but I can't interact with that as well.

So, it got stuck in there.

Is there any solution for that?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Marcyvee:
Try to update the bootloader. Or flash the last version to match it to the bootloader version.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] KHALISTAN:
Is this designed for android 12?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] scorpio76r:
Hello everyone, I recently left Evo-X to go back to Jaguar rom. Can someone please let me know what is the best twrp version to use with this rom? It's built on Android 11.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] scorpio76r:
@ deepongi, can you please let me know this answer?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] deepongi:
beta 3
[OnePlus 8 / 8 Pro & 8T Cross Device Development] scorpio76r:
Cool, thanks for getting back. I will flash it this weekend when I get to my pc. I really don't like other recoveries and, have gotten used to twrp since it's birth. A simple oldskool backup and restore with twrp is all I need 😁
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Marcyvee:
How to flash a ROM with this TWRP? Every zip i tired gave me an error.

And, how to restore a backup? The last I restored booted up, but it stuck after launch the system UI with a loading of simething i can't remember...
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
Maybe if you post the actual error message someone would be able to tell you what it means?

As to backup/restoring, I'm pretty sure this guide still applies :)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Tonokasho:
Sorry for the noob question. I have twrp-3.6.1_11-infected-b11 & OxygenOS-11-stable (A11) on my 8 Pro years ago. By the way, magisk-25.2 if it matters. Is it possible for me to upgrade to twrp-3.7 & OxygenOS-12(A12), without wiping the data? I read the previous posts still not yet sure.

I feel like:

1. local upgrading full OxygenOS-12 image on slotB & install magisk on slotB & shutdown;

2. flash twrp-3.7.0-13(BETA 3) via fastboot command.

But in that case I will have A11 in slotA, whilst A12 in slotB. Is there a chance that twrp-3.7 decryption will work?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Zweikeks:
Awesome work! Just great! Thanks a lot for putting so much effort in providing TWRP.

I found one thing to know:

On an OnePlus 8 Pro IN2023 with 256GB the feature 'RAM expansion' was enabled.

I had to disable it in the settings of the phone, reboot into Android again to execute the change, and additionally delete /data/nandswap using the terminal in TWRP.

Otherwise TWRP ends the backup with an error message:

I:addFile '/data/nandswap' including root: 0
libtar: ==> set selinux context: u:object_r:nandswap_file:s0
libtar: failed to lookup fscrypt tar policy for '/data/nandswap' - 'e17cf810cbf37cee'
I:addFile '/data/nandswap/1+,QvDAAAAQxiNPWDpu9ijTRmw6R5mB1' including root: 0
libtar: ==> set selinux context: u:object_r:nandswap_file:s0
I:Error adding file '/data/nandswap/1+,QvDAAAAQxiNPWDpu9ijTRmw6R5mB1' to '/data/media/0/TWRP/BACKUPS/9f49cf2f/2023-07-20-all_and_everything/data.f2fs.win'
Error creating backup.
I:ERROR tarList for thread ID 0
Error creating backup.
I:InfoManager saving '/data/media/0/TWRP/BACKUPS/9f49cf2f/2023-07-20-all_and_everything/data.info'
createTarFork() process ended with ERROR: 255
Backup Failed. Cleaning Backup Folder.

/Zweikeks
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Vovan2k:
Is version of TWRP for Android 11 (twrp-installer-3.7.0_11-0-instantnoodle) fully supports restore?

I am getting error
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
There is an older post about how to properly make and restore a backup in TWRP, and a slightly newer one (which also links to another guide).

I don't know if you've followed either of them, but it might be worth a shot. I've made 1 or 2 nandroids, but luckily haven't had to restore them so far, so no idea if it would work. 🤷‍♀️
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Vovan2k:
What's the difference between ext4 or erofs versions?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Vovan2k:
This version does not allow me to mount my USB drive over OTG cable, its formatted NTFS, worked with twrp-3.7.0_11-0-instantnoodle just fine.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Nimueh:
Pretty sure ext4 = OOS 11, erofs = OOS 12-13. :unsure:
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Vovan2k:
I used ext4 for FW 13.0 and it worked except OTG problem i mentioned above.

I think EXT4 and EROFS is different filesystems.