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[RECOVERY] [11] [OFFICIAL] TeamWin Recovery Project (8T / Kebab) (2021-29-11)

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Ryano89

Senior Member
May 6, 2011
2,041
754
Indiana
OnePlus 6T
OnePlus 8T
Then what's this??? This guy said he was stock and flashed TWRP via Franco Kernel Manager. I take it "stock" means OOS... Now that's how I interpreted it anyhow.
I read this to mean that he was on OOS, successfully flashed TWRP through FKM, and then flashed a kernel through TWRP. It's not completely clear, but I'm not sure that he was saying he actually flashed OOS through TWRP. Maybe 8m reading it wrong though
 
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mslezak

Senior Member
Dec 12, 2016
395
374
Houston
Google Pixel 2
OnePlus 8T
Hell I just booted it, encryption works, data backup works, I'm on OOS... The real test is to attempt to restore it... Actually I just flashed it to recovery from fastboot, it works! Although attempting to flash the incremental update fails; it doesn't appear to have the proper partition layout as it can't find system_root on slot B (I'm on slot A, TWRP attempts to flash to the inactive slot B, just where the update is supposed to go anyway)... But I found a Payload dumper https://github.com/vm03/payload_dumper that supports incremental updates so more to come there...
 
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jitnyc

Member
Jul 4, 2010
15
7
From my part, when I said "Can I mount the /data partition and decrypt the files?" I was referring to TWRP's ability to ask for a password and then use that password decrypt /data/data/*, /data/media/* etc. I would assume from the answers that this is possible.

I asked it because I thought I had read in another thread somewhere that Oneplus used a non-standard encryption scheme for 8T and there were other users speculating that because of this, there would never be a TWRP for this device. I think theincognito or the other devs and senior members would have to comment further. Regarding mounting Android system partitions, I think you can access these files in adb shell with su, I'm not sure if MTP exposes anything outside of Internal Storage although I doubt it.

You mentioned that "it would say there is NO OS installed". Do you see this message just when using TWRP or when the phone is booting?

Also, does this phone display a orange warning message when booting about how the device can't be checked for corruption due to the unlocked bootloader?

Thank you for taking the time to share your experience, this is welcome news. Having a full featured recovery option like TWRP really is a hig asset for a device.
Ok so first off, I prob should have known what you meant regarding decryption... but its been a while since using TWRP I guess. All good on that so to answer your follow up questions:

- regarding the "NO OS INSTALLED", this was specific to TWRP and from what I read it was a known bug. However, this is no longer an issue with me, I think it was only in the very first release of TWRP and not the current one. But since I didn't know who has what, just trying to prevent anyone from resintalling 10x cause thats what i did before I just hit reboot and saw that it worked.

- The orange warning sign is due to your bootloader being unlocked and yes it does say it on all oneplus devices... its actually cut off by the camera lens - so it really looks corrupted lol
 

ruszok

Senior Member
Jan 5, 2010
50
5
I flash OOS in OOS stock updater. With magisk and TWRP installer.
 
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hagar006

Senior Member
Aug 18, 2010
302
223
Any reason this recovery shouldn't work on op 8? I'm a flashaholic so I'm going to try of course.. just thought I'd ask the question first!
Excellent work guys!
 

XDAMaxe

Senior Member
Oct 15, 2012
1,175
876
OnePlus 5
OnePlus 8 Pro
Hell I just booted it, encryption works, data backup works, I'm on OOS... The real test is to attempt to restore it... Actually I just flashed it to recovery from fastboot, it works! Although attempting to flash the incremental update fails; it doesn't appear to have the proper partition layout as it can't find system_root on slot B (I'm on slot A, TWRP attempts to flash to the inactive slot B, just where the update is supposed to go anyway)... But I found a Payload dumper https://github.com/vm03/payload_dumper that supports incremental updates so more to come there...
So to sum it up:
With the current TWRP for 8T model
1. DATA partition is - as stated - backupable, incl. fingerprint backup and restore.
2. A full nandroid (DATA and SUPER partitions like usually) is - as far as I experienced - possible. But restoring failed.

My device has latest OOS with working magisk (patched boot.img via fastboot) and installed twrp.
Elemental-X kernel works perfect (flashed within EXKM).

Has anyone a detailed instruction for successfully restoring everything (nandroid) coming from a factory resetted device ?
Have I overlooked/done wrong something ?

Everytime I want to restore DATA and SUPER partitions the phone gets stuck after boot animation.
Only solution was EDL tool (hardbrick tool) to get into life - which means the whole installing, BL-unlock and rooting process :-(
Maybe I mixed up something with Slot A/B ? Never had a phone with A/B so I would be thankful for any hint.
 
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BillGoss

Senior Member
Sep 2, 2010
4,812
4,267
Sydney
OnePlus 3T
OnePlus 8T
So to sum it up:
With the current TWRP for 8T modell
1. DATA partition is - as stated - backupable, incl. fingerprint backup and restore.
2. A full nandroid (DATA and SUPER partitions like usually) is - as far as I experienced - possible. But restoring failed.

My device has latest OOS with working magisk (patched boot.img via fastboot) and installed twrp.
Elemental-X kernel works perfect (flashed within EXKM).

Has anyone a detailed instruction for successfully restoring everything (nandroid) coming from a factory resetted device ?
Have I overlooked/done wrong something ?

Everytime I want to restore DATA and SUPER partitions the phone gets stuck after boot animation.
Only solution was EDL tool (hardbrick tool) to get into life - which means the whole installing, BL-unlock and rooting process :-(
Maybe I mixed up something with Slot A/B ? Never had a phone with A/B so I would be thankful for any hint.
A "full" backup requires data, boot, dtbo, and super.
And the process for restoring is documented in the OP's posts (there's more than one) at the start of the thread.
Note: you must restore to the same slot you backed up (edit: unless you've synced the slots, in which case of doesn't matter).
 
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XDAMaxe

Senior Member
Oct 15, 2012
1,175
876
OnePlus 5
OnePlus 8 Pro
A "full" backup requires data, boot, dtbo, and super.
And the process for restoring is documented in the OP's posts (there's more than one) at the start of the thread.
Note: you must restore to the same slot you backed up.
ah, I see, thanks a lot.


Yes, I saw that tutorial in the first posts of OP but it only concerns the data backup and another file includes instructions for the fingerprint backup and restore.

The attached file (unchanged from OP post) for fingerprint backup and restore is imho quite nice to fill in the missing steps.
May I ask if you can provide a step by step guide to make a full nandroid resp. the all-I-need-instructions to fully restore a former backup state?
Would you do that ?
I think because of the A/B slots it is not easy for those coming from former twrps not fully understanding what is going on with that A/B-slots and how to access them and how to check where to backup and where to copy the files - like me :unsure:*confused*
 

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Lossyx

Senior Member
Jan 14, 2014
1,529
779
OnePlus 7T Pro
I am use oxygen os. But after install twrp i can't delete file from system-ext
system_ext is a read only partition, this is intended on OxygenOS. So I'm not sure what you're getting at. Besides, TWRP does not mount logical partitions R/W as far as I know, even if the partition is writable.
So there is nothing to fix.
 

BillGoss

Senior Member
Sep 2, 2010
4,812
4,267
Sydney
OnePlus 3T
OnePlus 8T
ah, I see, thanks a lot.


Yes, I saw that tutorial in the first posts of OP but it only concerns the data backup and another file includes instructions for the fingerprint backup and restore.

The attached file (unchanged from OP post) for fingerprint backup and restore is imho quite nice to fill in the missing steps.
May I ask if you can provide a step by step guide to make a full nandroid resp. the all-I-need-instructions to fully restore a former backup state?
Would you do that ?
I think because of the A/B slots it is not easy for those coming from former twrps not fully understanding what is going on with that A/B-slots and how to access them and how to check where to backup and where to copy the files - like me :unsure:*confused*
The data backup/restore process is not something you could work out other than by testing. That's why it's documented.

Backing up the system side is far easier and can be worked out by understanding what gets flashed in a custom ROM and understanding how virtual A/B partitions in super work. So it doesn't really warrant a how-to other than what I told you:
- backup boot, dtbo, and super.
- restore them to the same slot you backed them up from (because the super content is slot-specific) (edit: unless you've synced the slots, in which case of doesn't matter).
 
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XDAMaxe

Senior Member
Oct 15, 2012
1,175
876
OnePlus 5
OnePlus 8 Pro
The data backup/restore process is not something you could work out other than by testing. That's why it's documented.

Backing up the system side is far easier and can be worked out by understanding what gets flashed in a custom ROM and understanding how virtual A/B partitions in super work. So it doesn't really warrant a how-to other than what I told you:
- backup boot, dtbo, and super.
- restore them to the same slot you backed them up from (because the super content is slot-specific).
alright, thanks for the heads up.
btw: did you already successfully restored a full system with before backuped data, boot, dtbo and super in your 8T with latest twrp (as of 26th July 2021) ? any special issues ?
 

BillGoss

Senior Member
Sep 2, 2010
4,812
4,267
Sydney
OnePlus 3T
OnePlus 8T
alright, thanks for the heads up.
btw: did you already successfully restored a full system with before backuped data, boot, dtbo and super in your 8T with latest twrp (as of 26th July 2021) ? any special issues ?
Haven't needed to restore whilst using 210726, but I've done it numerous times with the previous two versions.
 

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  • 1
    Ok will do. My apologies
  • 11
    Hello!

    I am just trying to undersand at which step of the flashing instructions the "copy-partitions.zip" should be flashed.
    Is it the first step you do to flash the copy-partitions before switching slot and reboot to TWRP (so I guess those steps can be skipped when havening flashed the copy-partitons or?)

    Also regarding the "format data" it seems there are different informations on when that should be done.
    In the OP it is the first step when coming from OOS to custom ROM but in the post you posted here it is mentioned like "do the format after flashing and rebooting to TWRP" .
    So I wonder which step is the correct one to do the format data and flash the copy-partitons from flashing from OOS to custom ROM.

    I thought like this perhaps?
    But I guess the format data should be after point 6. or, and is it so that 3. and 4. can be skipped when flashing the copy-partitons ?

    1. Format data
    2. Flash copy_partitions.zip
    3. switch slot
    4. reboot to TWRP
    5. sideload/flash ROM and TWRP Installer zip
    6. reboot to TWRP
    7. Flash Magisk
    8. Flash Gapps
    9. Reboot to System


    Thanks a lot.
    Things to know about A/B devices:
    1. The slots have different versions of firmware/software because an update only updates one of the slots. This means that it's very likely that your system won't boot if you just change slots.
    2. When you install an update or a new rom, the changes are always made to the inactive slot.

    So, if you're currently on OOS and install a custom rom, then it gets installed to the inactive slot which has firmware/software belonging to the previous version of OOS, which is not what you want.

    There are two ways to avoid this problem of installing the new rom on outdated firmware/software:
    1. Sync the inactive slot to be identical to the current working slot before starting the installation. Copy-partitions.zip does this.
    2. Boot to the inactive slot and then install new new rom. This way the rom gets installed on the slot that has the latest version of the firmware/software.

    The OP uses the 2nd method, but I prefer the first. In fact, I sync my active slot to the inactive one after every OOS update once I know all is good and I'm not going to revert to the previous version.
    Side note: if you've synced the slots then your system will successfully boot on either slot!

    As to the order of "format then flash" or "flash then format", both achieve the same result. But I prefer to do everything on my phone without using a PC (where possible) or OTG. Since all the installation files on the phone will be gone after a format, I prefer to do the installs first and then do the format.
    The fact that currently (version 210904 of TWRP) the data partition isn't set up properly after a format until after the system is rebooted, also means you can't push files to the phone before the system reboot and must use sideloading if installing stuff. Hence my strong preference for "flash then format" at this point.
    10
    Updated the thread with the official link.
    This is the official A11 release, not A12. So, don't expect A12 support on this build.
    7
    Updated post #3 with the updated data backup and restore procedure.
    Once again, huge thanks to @BillGoss :D
    3
    Things to know about A/B devices:
    .....
    @BillGoss - The MVP of this thread. :D
  • 83



    Introduction:

    Team Win Recovery Project or TWRP for short, is a custom recovery built with ease of use and customization in mind. We started from the ground up by taking AOSP recovery and loading it with the standard recovery options, then added a lot of our own features. It's a fully touch driven user interface , no more volume rocker or power buttons to mash. The GUI is also fully XML driven and completely theme-able. You can change just about every aspect of the look and feel.

    Key Features:

    Touchscreen driven with real buttons and drag-to-scroll
    XML-based GUI that allows full customization of the layout true theming!
    Settings are saved to the sdcard and persist through reboots
    Ability to choose which partitions to back up and which to restore
    Ability to choose to compress backups now with pigz (multi-core processor support for faster compression times)
    Onscreen keyboard
    Easy selection of internal/external storage

    In addition to the above new features, TWRP features a scripting engine that allows an app to send commands to the recovery for the recovery to perform during startup. We call this scripting engine OpenRecoveryScript. This engine will be put to use immediately in the GooManager app. GooManager will be able to install recoveries automatically for most supported devices. The app will also let you choose to install multiple zips from within Android, wipe, and run a backup.

    We are looking for other talented developers, themers, and device maintainers if they are interested in helping with a free, open source project.

    Source Code:

    GitHub - https://github.com/TeamWin/android_bootable_recovery

    Gerrit Instance - http://gerrit.twrp.me

    If you have made your own TWRP build for an unsupported device, please let us know. We might add your build to the list of unofficial builds. Bear in mind that we are working hard to add more devices and we may add your device to our official build list later.


    Hello, this is TWRP, for Oneplus 8T

    Installation:
    # To temporarily boot it
    fastboot boot <twrp_file_name>.img

    # Since 8T/9R has a separate recovery partition, you can flash the recovery with
    fastboot flash recovery <twrp_file_name>.img

    Updating to a newer build:
    Simply flash the latest TWRP installer zip from TWRP

    OR

    Flash the img from TWRP/fastboot


    FAQ/Know Bugs are given in post #2

    Send me a beer, if you think I deserve it: PayPal


    Huge thanks to:
    @bigbiff (For everything :D 🥰 )
    @Lossyx
    @osm0sis
    @Nebrassy

    for helping in making this recovery. Without these people, TWRP for this device would not have been possible. :D

    Special mention to a friend @apophis9283 :)

    Trees:
    Device: https://github.com/theincognito-inc/android_device_oneplus_kebab
    Kernel: https://github.com/AOSPA/android_kernel_oneplus_sm8250

    Download:
    https://twrp.me/oneplus/oneplus8t.html
    28
    FAQ and Known bugs of TWRP:

    • OOS/H2OS flashing is broken.
    • If you are planning to switch to a custom ROM, and are currently on OOS/H2OS, format /data, switch slot, reboot to TWRP and then sideload/flash the ROM + installer.
    • It's better to flash ROM + TWRP installer, if you want to keep your TWRP after flashing a ROM.
    • Don't format /data, after a flashing a ROM, before the first reboot.
    • It takes around 50s to actually boot into TWRP.

    Ideal way to flash:
    • For OOS to Custom ROM - Format /data, switch slot, reboot to TWRP, sideload/flash ROM + installer, reboot to TWRP, flash Magisk/Gapps. Reboot to system.
    • For Custom to Custom ROM - Format /data. Flash ROM + installer, reboot to TWRP, flash Magisk/Gapps. Reboot to system.
    • For updating a custom ROM - Flash ROM + installer, reboot to TWRP, flash Magisk/Gapps. Reboot to system

    PS: After formatting /data, until the first time the device is booted to system, the files you send to phone via MTP (USB) will be at /data/media, not at /sdcard

    PS2: If, for some reason, you cannot send files to phone after formatting /data and rebooting to TWRP, press vol +, vol - and power button simultaneously.

    PS3: Factory reset WILL NOT wipe internal storage.
    24
    New build released - 20210726 (Kebab only)

    Changelog:

    1. Removed 9R support
    2. Fixed the TWRP screen overlapping with the notch
    3. Various mount errors while flashing ROMs should be gone now (atleast my testers think so)
    4. Latest upstream changes
    5. Removed AOSPA kernel, and updated to latest LOS kernel
    Download links:

    IMG: twrp-3.5.2_11-0-kebab-20210726-alpha
    Installer: twrp-installer-3.5.2_11-0-kebab-20210726-alpha

    As always, links are updated in the OP too.
    17
    Steps for backing up and restoring data in TWRP (Huge thanks to @BillGoss )

    TL;DR for data backup on custom ROMs:

    1. Backup /data (copy the backup folder to PC if you will format /data).
    2. Flash the ROM and boot it once to system.
    3. Restore /data (copy the backup folder back from PC if you formatted in step 1) and boot into system.
    4. If you find any issues like missing navigation bar or blank screen or something, just do a normal reboot again to system.

    System Backup and Restore
    The "system" partitions on the OnePlus 8T are:
    • Boot
    • DTBO
    • Super which contains the logical system, system_ext, odm, product, and vendor partitions
    Just backup and restore these partitions.
    Do NOT backup/restore any of the logical partitions individually.


    Data Backup
    1. Make sure USB debugging is enabled
    2. You do NOT need to remove your password

    In TWRP
    1. Backup: Select only the Data partition.
    2. Reboot System

    Restore
    Remove the current password before starting the restore process by Settings>Security & Lock Screen>Screen lock: Select Swipe (if prompted tap on "Yes, remove")
    If you don't do this, the system will not reboot properly after restoring.

    This will also remove your fingerprint data and your lockscreen (encryption) password (you won't be prompted for a password in TWRP or when you restart the system)

    In TWRP
    1. Wipe>Factory Reset
    2. Reboot System (this will rebuild the data partition)

    Back in TWRP
    1. Restore: Select the backup you want to restore
    2. Remove the SIM card. If you don't do this the system won't boot properly.
    3. Reboot system, making sure the phone is not connected to a PC

    Notes:
    1. At this point the phone will take longer than usual to boot - that's normal
    2. You will be presented with a blank screen
      • Connect the phone to a PC. You should be able to see the phone using adb devices
      • Disconnect the phone from the PC
    3. Hold the Power button down and select Restart

    In System
    1. Settings>Security & Lock Screen>Screen lock: set your password
    2. Insert the SIM card
    Note: Your fingerprints will have been restored because the backup was taken with the password set.
    16
    New build released - 20210904

    Changelog:
    1. Removed repack tools
    2. Allowed OpenAES encrypted backups (to conform with the TWRP source change)
    3. Added logical flag for relevant partitions (to conform with the TWRP source change)
    4. Latest upstream changes
    Download links:

    IMG: twrp-3.5.2_11-0-kebab-20210904-alpha
    Installer: twrp-installer-3.5.2_11-0-kebab-20210904-alpha


    NOTE for 9R users: This build SHOULD work with 9R - you SHOULD be able to do everything except flashing OOS. This is experimental. Use it at your own risk.

    As always, links are updated in the OP too.