Tried to install full system update (11.0.9.9) with Oxygen Updater using twrp option and failed. Twrp made backup and finished without any update.
Tried it and also didn't work. It was not possible to flash the stock firmware. As a result, I flashed it through an internal update in the phone settings.
what is the safest way to go back to stock recovery? should I just flash stock OOS .zip from the latest beta TWRP? don't want to get stuck on bootloop.
If you're on 8.8 OOS you can pull it yourself using payload dumper. It's good practice to be able to obtain it yourself.
My root guide in guides and discussion can show you exactly how...
Then just flash it in fastboot.
Yesterday tried to restore my OOS backup after tinkering with a custom ROM. There were no errors when I took the backup. Data restored fine without errors too, but the system didn't boot afterwards, it was boot looping. I did a wipe - factory reset before restoring. Lost about two hours trying to restore the backup so that it would boot and all was in vain. So I had to MSM eventually 
I used beta 7 for backing up and restoring.
I used beta 7 for backing up and restoring.
Just curious. Did you follow the instructions on the 2nd post?Yesterday tried to restore my OOS backup after tinkering with a custom ROM. There were no errors when I took the backup. Data restored fine without errors too, but the system didn't boot afterwards, it was boot looping. I did a wipe - factory reset before restoring. Lost about two hours trying to restore the backup so that it would boot and all was in vain. So I had to MSM eventually
Of course. I removed the pin so that the system was unencrypted before backing it up. Then I did a factory reset before restoring.
I have a backup phone (Samsung A5 2017), which also has a TWRP installed. I backed up that phone and restored it over a dozen of times, so I'm kinda familiar with the process.
In this case I could eventually still install a custom ROM on a clean system and it would boot and work fine. However, the restored OOS backup never boots.
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The process as explained in post #2, when switching ROMs, is to do a format of /data, not a factory reset.
I did a format too (where it says type "yes" to continue). As I said, I tried to restore the backup over two hours multiple times, on a clean/wiped/completely formatted system. It does restore the backup without errors, but it never boots. I could still install a custom ROM though and it booted just fine.
I backed up all partitions, except "persist" and "super partition". When restoring, I tried to restore all of them and also restored "data" only. It didn't make any difference.
Historically was a format required?
I mean it's going to nuke the device anyway?
I'll be honest I never bothered with Nand back ups but to me it sort of defeats the object if you need to wipe prior to a restore?
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10
1. The A12 kernel source is incomplete (missing various things like touch panel driver and techpack)@infected_ now that the kernel source of 12.1 is out, will there be A12 support finally?
2. It doesn't work like that. The encryption/decryption algorithm in A12 has yet to be implemented correctly into any 3rd party recovery. And this is for all android devices running 12, not just op8 series.
Update: As of last night, enough of the kernel source has now been released to start the oplusification of 8 series. However this still doesn't change anything regarding the encryption algo in A12 from being implemented in twrp. -
61TWRP for OnePlus 8 and 8 Pro
TWRP is an open source, community project. TWRP development is done by a large support community with many people who are willing to answer questions and help people with their devices either through our IRC channel or on forums like xda-developers, and zulip-chat.
A custom recovery is used for installing custom software on your device. This custom software can include smaller modifications like rooting your device or even replacing the firmware of the device with a completely custom "ROM".
Team Win strives to provide a quality product. However, it is your decision to install our software on your device. Team Win takes no responsibility for any damage that may occur from installing or using TWRP.
Code:#include /* * * Yea, though I walk through the valleys of c++ and java, of the shadow of death on these forums, * I will fear no evil and i will develop and code restless: for thou art with me and my keyboard; * thy rod and thy staff they comfort me, and my mouse.. * */
A12 support is still a WIP, but most things are working, A12 is all new, keep that in mind.
WORKING:
Decryption
ADB Sideload
Format Data
Flashing zips (kernels and ROM's)
Backup/Restore
MTP is working
adb is working
vibration
stock firmware flashing
OTG
NOT WORKING
wip
A12
Download
:: SourceForge ::
:: AndroidFileHost ::
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
Linux
Download and add to path (.bashrc) platform-tools:
export PATH=$HOME"/platform-tools:$PATH"
dont forget udev rules if you're using ubuntu based distro:
https://github.com/M0Rf30/android-udev-rules
open a terminal and:
fastboot flash recovery_a twrpname.img
fastboot flash recovery_b twrpname.img
that's all.
Source Code:
https://github.com/infectedmushi/android_device_oneplus_instantnoodle-dev
https://github.com/infectedmushi/android_bootable_recovery
https://github.com/bigbiff/android_device_oneplus_instantnoodle
https://github.com/TeamWin/android_bootable_recovery
https://github.com/systemad/android_device_oneplus_instantnoodle
Credits:
@bigbiff
@Lossyx
@Captain_Throwback for original tree
@mauronofrio for original tree
TWRP team23uploaded beta 6.
changelog:
* Add custom kernel for recovery
* crypto: only set crypto state and type if not already set
* crypto: only show FBE error if device is encrypted
* digest: fix checking of digest on restore
* fs_mgr: allow deleting merged snapshots
* merges: allow user to perform snapshot merges in advanced menu
* mtp: don't create storage device after format data
* recovery: Allow kernel to read and write unlabeled files
* repacker: add root overwrite warning
regards.23uploaded beta 3. it's possible now to backup persist partition also.
twrp-op8-3.6.0_11-infected-b3.img
twrp-op8-3.6.0_11-infected-b3.zip
* 0c94cd7 - fstab: it's now possible to backup persist partition.
* b99d112 - module load: Try loading prior modules first
* 5ab53dc - libresetprop: use the latest header
* 60927bc - kernel_module_loader: Set a prop after completing
* 3a95d18 - fscrypt v1: support legacy ioctl
* 540c802 - build: add option to create recovery installer zip
* 7284ace - vndk: remove exclusion in recovery
* aa2f760 - update_engine: handle payload that contain xbl_lp5 partitions
* f1db62e - libresetprop: update to magisk HEAD
* b65b045 - soong: Add TARGET_LEGACY_HW_DISK_ENCRYPTION conditional
regards.22uploaded beta 8.
* sdcard: only bind mount sdcard after successful preparation of data
* Add TW_QCOM_ATS_OFFSET flag to manually set time/date offset
* System_Property_Get: Allow specifying multiple prop file paths
* update RECOVERY_INSTALLER_PATH to proper path
* fastbootd: Check for and run startup script if script exists
* Adding TARGET_OTA_ASSERT_DEVICE flag for custom device asserts
* theme: move TW_THEME_VERSION to variables.h
* theme: clean up TW_THEME_VERSION shell command
* prebuilt: update magiskboot to v24.1 stable
regards.
