Database Develop

[GUIDE] [F.A.Q.] [chef] [TREBLE] Common Hurdles and Solutions for First Timers!

This thread is meant to address all the common hurdles that are commonly faced by people who are new to treble devices (chef to be specific) and help them to troubleshoot/avoid some small yet critical steps during flashing new ROMs and working with fastboot and recovery in general. It will be continually updated with new stuff as it goes along.
I will be referring to the Motorola One Power and Moto P30 Note as chef only from now on.
The unlocking guide is available in This XDA Thread!
IMPORTANT:
1. Flashing refers to the process of doing a clean flash, with the inclusion of fastboot -w command
2. Latest ADB and Fastboot drivers are required to be installed, else the installation may halt mid-way.
3. Stock ROM refers to the Android One ROM for the Motorola One Power [XT 1942-2]
IMPORTANT: AS OF RIGHT NOW, PEOPLE WHO HAVE INSTALLED STOCK PIE (EITHER VIA UPDATE OR FIRMWARE) WILL NOT BE ABLE TO USE ANY OTHER ROM OTHER THAN THE STOCK PIE ROM. RADIO INTERFACE LAYER IS BROKEN IN OREO SOURCE BUILT ROMS AND THAT CURRENTLY INCLUDES LINEAGE 16 SO PLEASE WAIT FOR PIE SOURCE CODE FROM MOTOROLA FOR THAT TO BE FIXED.
1. I unlocked my chef . How do I flash TWRP in place of the stock recovery?
Solution:Currently you cannot as there is no recovery partition in the device. You have to manually boot TWRP onto the device using fastboot to use it. Follow as directed:
Boot the device into fastboot mode
Use command fastboot boot <path/to/TWRP.img> to boot TWRP temporarily.
2. I am done with TWRP and I want to flash Lineage OS 16 on my chef. I simply flash the .zip archive right?
Solution:No. Before you flash anything,
Take a backup of atleast your EFS and PERSIST partitions using TWRP and off-load it for safekeeping to restore in future if needed. You can also trigger a full backup if you require.
SUPER IMPORTANT: Flash this .zip file to copy the System A/B partitions. If this step is skipped, you will be responsible to brick your own device. THIS STEP IS ONLY REQUIRED ONCE AND ONLY ONCE IN THE LIFETIME OF YOUR DEVICE! YOU WON'T BE NEEDING THIS THE NEXT TIME YOU FLASH ANY ROM. .
After that, flash your dearest custom ROM and get going.
For Lineage OS 16, follow This XDA Thread.​
3. I am done testing LOS 16, I want to flash a GSI. Shall I use a stock Vendor Image for the GSI on my chef?
Solution:No. The stock Vendor image is causing bootloop issue in most GSIs. It is recommended to use Lineage OS Vendor to flash a GSI on chef. So flash LOS and then flash your favourite GSI.
Also, Super Important: for those who haven't used lineage before flahing a GSI, it is required to boot Lineage OS first before flashing a GSI. ​
4. I am done experimenting, I want to go back to the stock image. How do I proceed?
Solution:Follow this XDA thread for it. And don't install OTA updates directly from the device. It will come in the next step.​
5. I want to install OTA updates on the stock ROM. How do I proceed?
Solution:Follow this XDA post for it. The installation process is described here. You have to be clever enough to get the appropriate OTA update. ​
Credits:
@erfanoabdi : TWRP, LOS 16, AB partition management
@rushiranpise : Unlocking guide
@dayask : Testing the process, guide for reflashing stock ROM
@nageen9211 : Testing ROMs
For any additional queries, feel free to contact us at our Telegram Group
For more regular updates, follow our Telegram Channel
Always remember: You have to be smarter than your smartphone to be able to use it!
Cheers and Happy Flashing!​

Note to readers
The above guide is for stock kernels only (including lineage)
The custom Darkone Kernel has constant updates and fixes major bugs often. Please follow the linked thread to test it out if you want to. Cheers!

Anyone have flashed GSI ROM? FOr me after flash GSI HavocOS have bootloop :/

DIdn't flash copy system A/B partitions, stuck on bootloop with custom roms.
Watched some youtube videos and didn't read this post before flashing custom ROM. Flashed Custom ROM without flashing A/B partitions. Now I have a phone stuck on bootloop when done anything in TWRP. or I can use my phone with stock ROM installed by fastboot method.
Installing or restoring anything from TWRP results in boot loop.
Restoring the backup I made before flashing, completes the restoration process normally. But when rebooting to system, TWRP prompts me that no OS is installed. If I reboot anyway, its either stuck on bootloop or reboots to recovery and asks me to try again or factory reset, or boots into bootloader mode.
Installing custom ROM begins with Step 1, takes a bit time and starts step 2 and shows completed. Doesn't echos any comments. But when i reboot, same prompt shows saying no OS installed. Reboot anyway and stuck on bootloop or reboots to recovery and aks me to try again or factory reset, or boots into bootloader mode.
Now I installed stock ROM with fastboot method and phone is boots up into system just fine.
Sometimes TWRP can't mount anything.
So am I stuck with stock rom or is there any solutions?
Also, installing stock ROM with fastboot mode showed this error in between scripts
(bootloader) is-logical:xxx_a: not found
and
(bootloader) is-logical:xxx_b: not found
but is able to use the phone just fine with stock ROM.

Magisk v22.0 Patch Image - Magisk in Recover - Xiaomi Mi 9T (davinci) not being installed

Hopefully someone can help me out here:
I'm on Mi 9T (davinici) with xiaomi.eu-cROM 12.1.2 (Stable) and OrangeFox Beta R11.0 Recovery. Bootloader is obviously unlocked.
I followed the guide for Magisk v22.0 and installed the apk first, opened it and it says
"Ramdisk No"
Alright, so I have to patch the recovery.img.
In Orangefox Recovery I open the Terminal and extract recovery.img with
Code:
dd if=/dev/block/bootdevice/by-name/recovery of=/sdcard/recovery.img
Reboot to system and I chose "Install" in Magisk, "Recovery Mode" is already selected, click "Next" and I select the newly created file "recovery.img". Magisk does it's thing and I have "magisk_patched_cOdEy.img" in my Download folder which I pull with adb.
I reboot to fastboot mode and
Code:
fastboot flash recovery magisk_patched_cOdEy.img
which works w/o problems and reboot again.
But when I open Magisk it still says it's not installed.
So, I check the guide under Magisk in Recovery, where it gets really confusing, but from what I got is that I need to start the phone with recovery button combo (Power+VolUp for Mi 9T) pushed and release at splash screen so Magisk is activated. I try this multiple times since it's really hard with the timing (milliseconds too long it kicks me into fastboot mode. idk why).
Can someone figure out what went wrong/what I did wrong? Never had problems with earlier Magisk versions.
Follow up question: There's some warning about going back to stock recovery will brick your phone in installation. Does that include installing OrangeFox again? I'm 95% sure it doesn't, but would be nice to know before I do it.

Some Xiaomi devices have their bootloaders set up so that it will accept an initramfs that was manually added to the boot image. Therefore, on these devices you'll need to patch the boot image even though there's no ramdisk. Try that.

Didgeridoohan said:
Some Xiaomi devices have their bootloaders set up so that it will accept an initramfs that was manually added to the boot image. Therefore, on these devices you'll need to patch the boot image even though there's no ramdisk. Try that.
Click to expand...
Click to collapse
Can I reinstall OrangeFox or TWRP recovery then?
I'll report back, when I tried it.
edit: So this actually works and I was able to enter TWRP recovery again after flashing.
edit 2: Now WiFi is not working anymore. fml.
edit 3: For anyone stumbling over this thread. Nothing worked, I had to do a compelte wipe and then flash Magisk "the old way", by renaming the .apk into a .zip and flashing it in recovery. That did the trick without any probems and I'm rooted now after quite a hassle.

yeah, I stumbled upon it. And I'm having the same/a very similar issue. I was very happy with Magisk up to v22 when the problems began.
I'm still at DerpFest based on Android 9.0 (from 2019 ) and TWRP-3.4.0.0.I had Magisk running since it was 19.4, upgraded it multiple times already. So didn't think much about updating to 22. Then, it said the same: no ramdisk. Pitty. OK, so I went ahead and let Magisk patch the TWRP.img I still got on my phone and flashed the patched TWRP onto recovery. Upon booting, Magisk is there, but no wifi, no sound, no light sensor, ... LTE works, though .
Anyways, I just want to get my old setup back, so I thought, I just flash the original TWRP again. According to the Magisk documentation, if I don't press any button, it should boot to Android without Magisk. Well, it always boots into Android+Magisk disregarding that. If I flash the original TWRP.img back, I always end up in TWRP. So, the order is: boot.img -> magisk-modified-recovery.img -> (boot.img?) -> system. How can I get the behaviour Magisk advertises?
And yes, I tried uninstalling Magisk (via uninstall.zip meythod), which said it would uninstall, but actually didn't. I also flashed different boot images (a backup I had in TWRP, the original boot.img I've found in the DerpFest zip...) to no avail.
So, Immortal68, which of the many wipes one can do did result in the old behaviour? And: now that you have Magisk22, does it say "Ramdisk: yes" again?

Magisk with stock Android 10 / 11, MicroG with Android 10 stock

After some time I got a second Axon 10 and I spend some time figuring out what was possible with this phone in terms of root, custom ROM etc.
My results are as follows.
What is working:
Android 9 + Magisk and TWRP
Android 9 + TWRP + Custom ROMs (LineageOS 16 and patched GSI)
Android 10 + Magisk and TWRP
Android 10 + Magisk and MicroG flashed via Magisk (= stock ROM without Google Services)
Android 11 + Magisk
What is not working:
Android 11 + Magisk + TWRP (TWRP logo flashes randomly but TWRP does not load).
Android 11 + Magisk + MicroG (the nanolx patching script does not work with Android 11 as of yet)
Encryption in Custom ROMs
Method to flash files via EDL
Unzip / unrar my files into the backup\full folder of the EDL tool and choose restore + full in the tool.
Unlock Bootloader:
Before you try any of the files, you MUST unlock your bootloader!
BACKUP of your data as it will be lost!
Download the EDL tool from this Thread
If your phone is not on android 9, you must go back to Android 9 first. e.g. by using my Android 9 1.9 backup.
After you restored it, restart while holding the volume + key and do a factory reset / format data.
Boot into EDL again and unlock the bootloader.
Now you are on android 9 with unlocked bootloader.
From here you can follow the other guides in the form and install TWRP or lineageos. Or flash one of my files below.
Flashing EDL files:
Unzip / unrar my files into the backup\full folder of the EDL tool and choose restore + full in the tool.
I put all my files into this MEGA account: MEGA
Android 10 version 2.9 Magisk + TWRP
Android 11 version 3.5 stock
Android 11 version 3.5 Magisk
Android 10 version 2.10 stock
Android 10 version 2.10 Magisk (TWRP can be flashed with Magisk)
Install MicroG:
Only works on Android 9 and 10.
Before you install MicroG you must patch the stock ROM to allow for signature spoofing.
The patcher script I used is on https://downloads.nanolx.org/NanoDroid/Stable/ When I write these lines the up-to-date-version is NanoDroid-patcher-23.1.2.20210117.zip
Reboot.
Install MicroG from the Magisk repository.
After a restart there will be error messages that google apps keep crashing. With each warning, disable the apps one by one.
When you reboot again, no errors should appear and MicroG should report that it is fully working.
You can add the Bromite Framework and give F-droid system rights. Both are available from the Magisk repo.
Updates will likely install the Google apps again and uninstall Magisk...
Revive phone:
Not really related, but I bricked my phone several times.
If your phones does not boot anymore or hangs in a bootloop, try accessing the EDL mode.
The easy way:
Boot while holding volume -
The hard way:
Old Volume +, volume - and power until you end up in EDL. The screen will be black, so it helps if you have the Phone connected to Windows and can hear the system sound when the USB sees a connection.
In anyway you can then use the EDL tool to restore / flash an EDL image.
On custom ROM support:
Well there is LineageOS 16 by Unjustified Dev. https://forum.xda-developers.com/t/rom-unofficial-zte-axon-10-pro-9-lineageos-16-0.3992127/ It works well. But has a patch level that is outdated by now.
On top of it you can install the GSI ROMs created by Rafyvitto. The latest one is Resurrection Remix https://forum.xda-developers.com/t/...nofficial-resurrection-remix-q-8-6-7.4172527/
with a security patch level of mid 2021. Which is recent enough to use. The stock roms are not much better.
With both Custom ROMs, encryption is not working which poses a privacy/security risk when your phone is stolen. Do not forget that your phone does not only contain your photos and data but also your passwords to your accounts.

Added Android 10 2.10 files.

Its nice to see anything new for this phone. I wish I can use these roms but I have the American version.

Hi and thanks for your work and your files.
I'm stuck on "Loading the programmer: prog_ufs_firehose_sdm855.elf >>>", if I try to recover your edl files with EDL Tool, v 3.25.
I have to choose option 2: "Restore Full EDL from backup", right?
Is there a way to check if the bootlaoder is really unlocked?
Thanks in advance

OK, I was able to solve the problem with the "programmer" and try the backups. The next step was almost clear. The device is stuck in bootloop. I've already tried all the backups I could find on Mega. After the EDL Tool has done its work and the device has restarted, the mobile phone goes into the boot loop. And now? So the starting position was: Android 9 with an open bootloader. Maybe someone has an idea?

After I couldn't get the device out of the bootloop, I flashed the A2020G_PRO_V1.6_FULL_EDL via MiFlash and then did an OTA update to 1.8.
Then I tried unlocking the bootloader again, which unfortunately didn't work. The flash is carried out without errors, but the device then apparently does not start in the desired Fastboot mode.

Thanks for your guide. However am I missing something with the Android 11+Magisk installation? I restored all the correct files and everything flashed correctly, however upon reboot there is no Magisk installed anywhere. Did a factory reset after the flash and still not there. Tried installing Magisk via his github and tried patching the boot.img again and it says success but after rebooting it says Magisk is not installed.

brian117 said:
Thanks for your guide. However am I missing something with the Android 11+Magisk installation? I restored all the correct files and everything flashed correctly, however upon reboot there is no Magisk installed anywhere. Did a factory reset after the flash and still not there. Tried installing Magisk via his github and tried patching the boot.img again and it says success but after rebooting it says Magisk is not installed.
Click to expand...
Click to collapse
Maybe you need to switch the slot in TWRP. It sounds as if you install it to the other slot (like A) an then boot B. Or vice versa.

Magisk 25.2 severely breaks LineageOS 18.1 on Samsung Galaxy Tab S5e (SM-T725)

For some odd reason Magisk breaks auto-rotation and sets selinux to permissive on boot after updating to 25.2 (from 25.1).
This is not the first time Magisk messes up Selinux rules. I usuall solved this by making a fresh OS install already with patched boot and by installing the managing app afterwards.
However, this time autorotation stopped working for some reason. And when i try to uninstall Magisk using its app -- OS no longer boots, as if it fails to restore initial boot image.
This selinux problem began since v25.
I use latest official build of Lineage OS 18.1. I have TWRP installed, which i use to install LineageOS.
What am i doing wrong? Has anyone experienced such issues?

I posted the same problem here (did not notice/checked SELinux back then and sound is probably also not working), figured out that all sensors do not work, checked with "Sensor Test" app. I was already considering a separate thread, thus I'll continue here, because this issue definitely deserves a separate thread. Documentation is so scattered and sometimes so confusionly described, that it was hard to make sense of it all...
(Disclaimer: Although I have necessary experience with installing custom ROMs etc., everything stated below is at my own understanding ).
My device: Samsung Galaxy Tab S5e LTE
My goal was: TWRP, LineageOS and Magisk. How hard can it be?
Problems are that (most of the) Samsung devices do not have a "ramdisk" partition where Magisk is normally installed, also the increasingly complexity of encryption en integrity checks makes this more annoying.
First, let me retrace my steps, as far as I can.
When reading the TWRP page, we get a clue where to start: "You are therefore strongly advised to first root your device with Magisk and then pre-root a TWRP image before flashing it to recovery", this is because "Both TWRP and Magisk-rooted Android boot using the recovery kernel, with the device's hardware keys used to choose between TWRP and Android at boot time".
(Magisk "hijacks" part of the recovery partition, since the absence of a ramdisk partition.)
Spoiler: later on you learn this is not completely the case any more, but I would still recommend to hold on to this method, because the TWRP page also states that: "The usual path of installing TWRP prior to rooting is problematic on this device, because the Magisk installer does not support installation to recovery from TWRP. Furthermore, prior rooting of the device with Magisk carries the significant advantage of disabling various device protection mechanisms that you will otherwise need to take care of manually.", and it continues with more scary warnings...
1. Thus followed the Samsung section of the Magisk documentation to have the bootloader unlocked and Magisk installed, but stock firmware is still installed, no problem whatsoever.
Then decipher the already mentioned instruction: "...pre-root a TWRP image before flashing it to recovery". This apparently means that Magisk has to patch the TWRP image, just like as was done with the Samsung firmware.
2. Downloaded the *.tar file of TWRP, extracted the image, patched with Magisk and repacked to the *.tar file with 7-Zip in order to be able to flash it with Odin (see step 4).
*3. I do not recall when I installed the "VBMeta file", although this is instructed in the Lineage OS installation instructions, when following the TWRP instructions it says "...you can now jump to its own section", thus skipping it?? (I did it somewhere in the process...)
Unknown: whether it is still required to patch and flash VBmeta (to disable some verification process)...
4. Flash TWRP recovery, see YouTube video below. This video mentions the use of "multidisabler-samsung", which disables "FBE, proca, Vaultkeeper and auto-reflash of stock recovery on Samsung Pie devices". Current latest version was 3.1, downloaded from this XDA post, I think.
Just as in the YouTube video, I also was stuck at the Samsung logo. After booting into the stock firmware you can check if Magisk still works.
Not sure: "multidisabler-samsung" needed?
5. Install LineageOS (and GApps). The most straightforward step, just install LineageOS, read the instructions. Then install GApps (e.g., BiTGApps).
6. After booting (power and volume + button) and setting up LineageOS, a Magisk icon should be visible in the app drawer, click it and the Magisk app is installed, when opened, Magisk is setting up a few more things and reboots the tablet.
*******************************************************************************************
This is the point were you finally think you made it, but no, here the issues arise.
Issues thus being SELinux permissive status (Xandros Darkstorm), no sound and non-working sensors, thus "auto rotating" feature is not working.
At this point I started to regret my purchase...
In the search of a solution to the problem I stumbled upon the following familiar and solved Magisk issue #4911 (LineageOS 18.1 no sound and no sensors after booting with Magisk), which refers to issue #4394 (Magisk > 21.4 is difficult to install on LineageOS (18.1) with TWRP (Direct Install not enabled unless you use old zip)).
In short: this post mentioned patching the boot image instead of the recovery image.
*******************************************************************************************
I. I extracted "boot.img" from the LineageOS zip file, patched it via Magisk (ramdisk is added to the boot image) and replaced the "boot.img" in the zip file with 7-Zip.
II. Booted into TWRP, flashed an original TWRP image, so recovery is replaced. (Rebooted I guess.)
III. Then wiped previously LineageOS installation and, flashed the LineageOS zip file with patched boot image and GApps and rebooted to system.
IV. After setting up, install Magisk, let is do its thing.
V. I installed "Root Checker Basic" in order to check I gained root checker. It was a PASS! And checked with "Sensor Test" if all sensors worked, they did! And sound also worked .
Yay!
Clearly, all of this can be optimized. Some questions remain, what steps are really necessary and I am also still wondering how to apply a LineageOS update... Anyhow at least it is working.

What resolved
Xandros Darkstorm said:
For some odd reason Magisk breaks auto-rotation and sets selinux to permissive on boot after updating to 25.2 (from 25.1).
This is not the first time Magisk messes up Selinux rules. I usuall solved this by making a fresh OS install already with patched boot and by installing the managing app afterwards.
However, this time autorotation stopped working for some reason. And when i try to uninstall Magisk using its app -- OS no longer boots, as if it fails to restore initial boot image.
This selinux problem began since v25.
I use latest official build of Lineage OS 18.1. I have TWRP installed, which i use to install LineageOS.
What am i doing wrong? Has anyone experienced such issues?
Click to expand...
Click to collapse
What fixed this for me is after re-flashing stock in Odin to get everything working again, just rename the magisk apk to install.zip and flash that in twrp, and open the magisk app once booted, no other steps needed for install, no image patching or anything.
Might be worth seeing if this is the same issue or if there's a more fundamental problem with 25.2

Hi,
I stumbled upon this thread while searching for a way to install Magisk on a S5e.
Following the guide here: https://wiki.lineageos.org/devices/gts4lvwifi/install I already unlocked the bootloader, flashed vbmeta.tar with Odin, flashed lineage-19.1-20221114-recovery-gts4lvwifi.img with Odin and flashed lineage-19.1-20221114-nightly-gts4lvwifi-signed.zip with TWRP-recovery.
Lineage is working fine, but I would also like to use Magisk.
I understood, that the order I follwed is not the recommended order for having both Magisk and Lineage. At least, that is, what you described at the beginning of your post.
But as with your last part you mentioned, that there where issues with sensors, ...
And the solution was to
I. Replace recovery with a patched boot.img of Lineage zip and wipe a prev. Lineage installation
I guess, I might be able to stiull do that though I already have Lineage on the S5e (currently with Lineage/TWRP recovery), right?
I can patch the boot.img from within lineage-19.1-20221114-nightly-gts4lvwifi-signed.zip with Magisk app, right?
Or would I have to patch lineage-19.1-20221114-recovery-gts4lvwifi.img
Is there anything to consider, when zipping the image with the patched boot.img again?
Which TWRP image did you choose to be flashed at step II.?
Barium said:
I. I extracted "boot.img" from the LineageOS zip file, patched it via Magisk (ramdisk is added to the boot image) and replaced the "boot.img" in the zip file with 7-Zip.
II. Booted into TWRP, flashed an original TWRP image, so recovery is replaced. (Rebooted I guess.)
III. Then wiped previously LineageOS installation and, flashed the LineageOS zip file with patched boot image and GApps and rebooted to system.
IV. After setting up, install Magisk, let is do its thing.
V. I installed "Root Checker Basic" in order to check I gained root checker. It was a PASS! And checked with "Sensor Test" if all sensors worked, they did! And sound also worked .
Yay!
Clearly, all of this can be optimized. Some questions remain, what steps are really necessary and I am also still wondering how to apply a LineageOS update... Anyhow at least it is working.
Click to expand...
Click to collapse
Thanks
If this is also a solution, can you please let me know, if there is anyhting to consider, when flashing the stock (got it from SAMMOBILE)? Can the lineage-19.1-20221114-recovery-gts4lvwifi.img still be left on the tab?
After re-flashing the stock, I guess you flashed lineage again, right?
Or did you stay with the stock and just flashed magisk (after renaming the apk to zip)?
Thanks
TheTofu said:
What fixed this for me is after re-flashing stock in Odin to get everything working again, just rename the magisk apk to install.zip and flash that in twrp, and open the magisk app once booted, no other steps needed for install, no image patching or anything.
Click to expand...
Click to collapse

I dared patching the TWRP recover for S5e and flashed it via Odin (AP).
S5e boots up in Lineage, Magisk is working fine.
But when I power off the tablet or restart, Lineage Recovery shows up telling me, that my data would be corrupt.
My only options are to try again or to do a factory reset.
Only way out of this is to re-flash the above mentioned recovery image again.
So how do I get the Magisk patched TWRP recovery permanent?

I wiped system? and re-flashed Lineage via TWRP, got "original" TWRP Recovery for S5e Magisk permanent.
I have to admid, I tried several things and got lucky I did not break something.
I had nearly, what I wanted - TWRP, Lineage and Magisk, but there were issues with the sensors (no auto rotate).
Again I helped myself:
1) flashed the original, unpatched TWRP Recovery for S5e
2) flashed unpatched Lineage for S5e
3) flashed MindTheGapps
4) flashed Magisk-v25.2.apk
No bootloop, original TWRP permanent, Magisks working fine, no issues with sensors.

Tried steps 1, 2 and 4 with the Lineage Recovery and it worked too.

Question LineageOS 18.1 / unusable on one Zenfone 8 but fine on others

All,
I'm attempting to figure out whether something in my flashing process broke down for one Zenfone 8 in particular that results in an unusable LineageOS 18.1 OS. This one particular phone was in a fastboot cycle that would not load the LineageOS Recovery mode or OS until I flashed the `dtbo.img` file. That fixed the fastboot and I was able to then sideload the OS.
However, the OS comes up with a white screen and extreme unresponsiveness. It's unusable. Other phones whereby I followed the same process (but did NOT need to flash `dtbo.img`) are working just fine.
I've run through the flashing process multiple times on the problem phone w/ no luck. Any thoughts appreciated. Should I get the phone back to complete stock and try again?
Flashing Process
-------------------------------
1. Unlock tool APK, unlock, etc.
2. fastboot flash vendor_boot sake_vendor_boot.img
3. fastboot flash boot recovery.img
a. When in fastboot cycle, I then flash `dtbo.img`, but I've only done this on the problematic phone
4. Factory reset
5. Restart, Recovery Mode, Update via ADB
6. adb sideload lineage.zip

chingtastical said:
All,
I'm attempting to figure out whether something in my flashing process broke down for one Zenfone 8 in particular that results in an unusable LineageOS 18.1 OS. This one particular phone was in a fastboot cycle that would not load the LineageOS Recovery mode or OS until I flashed the `dtbo.img` file. That fixed the fastboot and I was able to then sideload the OS.
However, the OS comes up with a white screen and extreme unresponsiveness. It's unusable. Other phones whereby I followed the same process (but did NOT need to flash `dtbo.img`) are working just fine.
I've run through the flashing process multiple times on the problem phone w/ no luck. Any thoughts appreciated. Should I get the phone back to complete stock and try again?
Flashing Process
-------------------------------
1. Unlock tool APK, unlock, etc.
2. fastboot flash vendor_boot sake_vendor_boot.img
3. fastboot flash boot recovery.img
a. When in fastboot cycle, I then flash `dtbo.img`, but I've only done this on the problematic phone
4. Factory reset
5. Restart, Recovery Mode, Update via ADB
6. adb sideload lineage.zip
Click to expand...
Click to collapse
HI
Lineage OS 18.x is based on Android 11 as far as I know so I suggest to install the original ASUS Android 11 raw image and then reinstall the LineageOS using the install instructions from LineageOS.
The raw image for Android 11 on the ASUS Zenfone 8 is available on this Website:
https://www.asus.com/Content/Android-12-Beta/
in the section
How to opt-out and revert back to Android 11​
at the end of the page
That's how I reinstall my development Zenfone 8 from 12 to 11 or vice versa.
regards
Bernd

Just wanted to thank you for the information you posted; the re-flash to stock download worked perfectly for what I needed.