Database Info

[GUIDE] How to root your Nokia 8, and keep the ability to do official OTA updates

So as the official bootloader unlock broadened the audience of this from tinkerers/developers to basically everyone I thought this guide might me helpful for some...
PREREQUISITES:
- Unlocked bootloader (official or unofficial)
- latest magisk manager installed on phone (https://github.com/topjohnwu/Magisk/releases)
- latest fastboot and adb binaries from google(https://developer.android.com/studio/releases/platform-tools)
- latest twrp.img to boot (NOT FLASH), zip not needed (https://eu.dl.twrp.me/NB1/)
- Fully stock partitions (if you do not have this reflash latest stock via ostla), as OTA updates will do a integrity check.
- PC with WIN/OSX/LINUX with USB port^^ (on windows you might have to add .exe to the commands)
- disable automatic system updates in developer options, as you will still have to manually root the updated partition, so this makes sure you don't miss it. You still get notifications on available updates and can apply them easily(as you will see)
SETUP_STEPS:
1. Go into Magisk manager and "just download" the latest zip
2.1 Run
Code:
adb reboot bootloader
or reboot into download/fastboot mode via other means
2.2 Run
Code:
fastboot boot twrp-3.2.3-1-NB1.img
(change this when your version of twrp differs)
2.3 Flash the .zip magisk downloaded in 1.)
2.4 Reboot.
Congratulations you now have root!
STEPS_TO_UPDATE:
1. Go into Magisk Manager -> Uninstall -> Restore Images
2. Apply Update, DO NOT REBOOT YET
3. When step to finished and it promts you to reboot go into Magisk Manager -> Install -> Install to inactive Slot
Congratulations you can now reboot and will have an updated Android while keeping full root.

ALTERNATIVE GUIDE (without twrp, using prerooted boot.img)
(works for newest patch level, where twrp isn't working yet)
this guide works on newest patches as long as someone provides a prerooted boot.img.
So basically you either need a boot.img available or twrp...
Hopefully this helps until TWRP is compatible with September Security Patch
LINKS:
stock boot.img: (may to october patches)
https://cloud.vault81.de/s/fnoizKwi8kNF3Rg
prerooted boot.img: (may to october patches)
https://cloud.vault81.de/s/AeHiE5HR2qonb3N
PREREQUISITES:
- same as above minus twrp
- patched/prerooted boot image (either create it yourself or use link provided here)
STEPS_TO_ROOT:
0.
Code:
adb reboot bootloader
or get into download mode otherwise
1.
Code:
fastboot boot NB1_prerooted_boot.img
1.1. The phone will boot into an temporarily rooted state,
2. Use magisk manager-> Install -> "Direct Install" to persist the root.
3. Reboot
Congrats you now have root even on versions where twrp isn't working yet....
Edit1:
Added link to all stock boot images from may to october security
Edit2:
Did the same for magisk prerooted
Edit3:
Added November images thanks to @czupyt

TWRP isnt working right now so whoever updated to September patch cant do anything except unlock bootloader. Unless someone can pull a boot.img from the newest patch so we can all patch it through Magisk and get root.

ironman38102 said:
TWRP isnt working right now so whoever updated to September patch cant do anything except unlock bootloader. Unless someone can pull a boot.img from the newest patch so we can all patch it through Magisk and get root.
Click to expand...
Click to collapse
I can try to do that once I get back home tomorrow...
I have working magisk on september patch so I should have both prerooted and Stock (cause Magisk backups those)

Trissi said:
I can try to do that once I get back home tomorrow...
I have working magisk on september patch so I should have both prerooted and Stock (cause Magisk backups those)
Click to expand...
Click to collapse
That would be much appreciated. Alot of people who just unlocked bootloader cant root and the maintainer of our TWRP will take a couple of days

indeed

ironman38102 said:
TWRP isnt working right now so whoever updated to September patch cant do anything except unlock bootloader. Unless someone can pull a boot.img from the newest patch so we can all patch it through Magisk and get root.
Click to expand...
Click to collapse
Simple Solution: A/B Partition System.
One Slot is the September Update, the other is August Update.
Update to September, Unlock, witch to other Slot with August Update, Boot Offical TWRP 3.2.3-0 (-1 not booting tho).
Now you can Install the Install Zip for the August BL and Magisk.
Bootup and use Magisk for Inactive Slot.
So did I, but I'm still on August Slot, I'll try to root the September Boot Partiton, and Install TWRP later when Fix arrived.
But rooted September doens't seem very... Stable

LoaderFabi said:
Simple Solution: A/B Partition System.
One Slot is the September Update, the other is August Update.
Update to September, Unlock, witch to other Slot with August Update, Boot Offical TWRP 3.2.3-0 (-1 not booting tho).
Now you can Install the Install Zip for the August BL and Magisk.
Bootup and use Magisk for Inactive Slot.
So did I, but I'm still on August Slot, I'll try to root the September Boot Partiton, and Install TWRP later when Fix arrived.
But rooted September doens't seem very... Stable
Click to expand...
Click to collapse
I'm already about to install the September patch again. I downgraded to May so I could root my phone and provide the clean boot.img from the stock September so people can root without twrp. And honestly A/B partition is still new to me that I still don't understand it

ironman38102 said:
I'm already about to install the September patch again. I downgraded to May so I could root my phone and provide the clean boot.img from the stock September so people can root without twrp. And honestly A/B partition is still new to me that I still don't understand it
Click to expand...
Click to collapse
A/B system is not Complex at all. It's just having 2x a Partiton Group (Boot, System, OEM and Recovery I think) and having the ability with Fatboot to simply switch between group A and group B.
You Inital Set up Partiton A (Nokia did for us with Nougat 7.1.1). If you Update, the Update will be extracted to Partition B, aftzer finishing you reboot to Partiton Group B, leaving group A untouched in Case of Error on Partition B.
That's it pretty much.

LoaderFabi said:
A/B system is not Complex at all. It's just having 2x a Partiton Group (Boot, System, OEM and Recovery I think) and having the ability with Fatboot to simply switch between group A and group B.
You Inital Set up Partiton A (Nokia did for us with Nougat 7.1.1). If you Update, the Update will be extracted to Partition B, aftzer finishing you reboot to Partiton Group B, leaving group A untouched in Case of Error on Partition B.
That's it pretty much.
Click to expand...
Click to collapse
No I get that but its just that I forget cuz this is my first phone with a/b partition. Anyway I got the phone to latest patch rooted so I'll see if I can get the untouched img

i'm on september security update and followed the seconde guide, but still show the android logo not booting the phone

eric194 said:
i'm on september security update and followed the seconde guide, but still show the android logo not booting the phone
Click to expand...
Click to collapse
On what step? Was it after you completed the guide? Or did the patched image not boot already?
If the patched image worked but it din't afterwards, you should reflash the stock_boot.img and redo the guide again because you probably flashed twrp and broke your bootloader...
As you can see in the prerequisites this guide requires a stock bootloader to start.

Trissi said:
On what step? Was it after you completed the guide? Or did the patched image not boot already?
If the patched image worked but it din't afterwards, you should reflash the stock_boot.img and redo the guide again because you probably flashed twrp and broke your bootloader...
As you can see in the prerequisites this guide requires a stock bootloader to start.
Click to expand...
Click to collapse
Nop I didn't flash twrp & Im on stock bootloader fresh september no modifications

eric194 said:
Nop I didn't flash twrp & Im on stock bootloader fresh september no modifications
Click to expand...
Click to collapse
So did the prerooted Image Boot?
If so it basically has to be your boot/system partition(I had mine compromised too and couldn't fix it with just flashing boot.img had to reflash everything via ostla)
If even the prerooted Image didnt boot im sorry i don't really know how to help, as I have working root with Magisk on September patch and the Image boots just fine for me....

eric194 said:
Nop I didn't flash twrp & Im on stock bootloader fresh september no modifications
Click to expand...
Click to collapse
Also you could Switch slots to revert back to august Patch and use the normal twrp guide then... And run the September Update via the magisk method

Trissi said:
Also you could Switch slots to revert back to august Patch and use the normal twrp guide then... And run the September Update via the magisk method
Click to expand...
Click to collapse
Ok I will try that hope it'll work
Edit : thanks dude it worked

Hey everyone;
My Nokia TA-1004 is on the July SP (4.88B_SP02) with unlocked bootloader (unofficial method), TWRP and Magisk installed.
Where can I find a stock boot.img to flash? I tried flashing the boot.img on this thread and although I can boot fine my wifi will be broken (I tried and had to restore nandroid backup). I also tried following the guide here but my OSTLA won't get past "Flashing Service Bootloader".
Any help?

Xayar said:
Hey everyone;
My Nokia TA-1004 is on the July SP (4.88B_SP02) with unlocked bootloader (unofficial method), TWRP and Magisk installed.
Where can I find a stock boot.img to flash? I tried flashing the boot.img on this thread and although I can boot fine my wifi will be broken (I tried and had to restore nandroid backup). I also tried following the guide here but my OSTLA won't get past "Flashing Service Bootloader".
Any help?
Click to expand...
Click to collapse
Flash the full Stock build (i think its even may patch), via ostla (https://forum.xda-developers.com/no...ia-8-official-firmware-links-updated-t3678487), then follow this guide then reapply all updates by following the update steps...

So which file do I have to download from https://drive.google.com/drive/folders/1t64iHuQQjmMnzcujZtjYplh6ipbiF6Cw ? I tried with the 488B one and got stuck on "flashing service bootloader"...

Xayar said:
So which file do I have to download from https://drive.google.com/drive/folders/1t64iHuQQjmMnzcujZtjYplh6ipbiF6Cw ? I tried with the 488B one and got stuck on "flashing service bootloader"...
Click to expand...
Click to collapse
Are you trying to use OST LA 6.1.2? Cuz that doesnt work

Have Systemless Root - Upgrading to Android 10?

My phone keeps bugging me to upgrade to Android 10. I have systemless root, magisk etc.
Is this safe to just do? Do I need to get the image from elsewhere and start over? I've had an update alert come through from Magisk announcing Android 10 compatibility, so I'm guessing that won't be an issue...
I really only wander in here whenever I get a new phone so I have no clue how this works.

you can update to android 10 just fine with magisk installed, however you will lose it once the upgrade is done. you will need to patch your boot image with magisk once you are on android 10.

Not sure what that means.

koberulz said:
Not sure what that means.
Click to expand...
Click to collapse
You. Will. Need. To. Patch. Your. Boot. Image. With. Magisk. After. You. Update. To. Android. 10.

I can read, dude.
What's a boot image? How do I patch it? What are the actual steps here?

koberulz said:
I can read, dude.
What's a boot image? How do I patch it? What are the actual steps here?
Click to expand...
Click to collapse
https://forum.xda-developers.com/pixel-xl/how-to/guide-pixel-xl-android-10-0-q-t3964112

So start the root process over, basically? Is there any point in doing the OTA update or do I just grab the latest image from the website?
Steps 7/8 say there's no TWRP for Android 10 yet, so how does that work?

koberulz said:
So start the root process over, basically? Is there any point in doing the OTA update or do I just grab the latest image from the website?
Steps 7/8 say there's no TWRP for Android 10 yet, so how does that work?
Click to expand...
Click to collapse
you can not install twrp on android 10, you can still boot twrp though. you will not need twrp for the boot image patch.
update your phone to android 10, get the boot.img from the factory image of the version you updated to, using magisk manager patch that boot.img, boot to bootloader, flash the patched boot.img with
Code:
fastboot flash boot_a patchedboot.img
and
Code:
fastboot flash boot_b patchedboot.img
(or only flash for the boot of the current slot you are on, doesnt really matter)

Personally, on every monthly update I always flash the full factory image (deleting -w if I want to keep my stuff) and then reinstall Magisk and custom kernel by temporarily booting TWRP. I find it much less of a hassle, it applies to major upgrades too (as is your case) and it's guaranteed to work every time.

Flipz77 said:
Personally, on every monthly update I always flash the full factory image (deleting -w if I want to keep my stuff) and then reinstall Magisk and custom kernel by temporarily booting TWRP. I find it much less of a hassle, it applies to major upgrades too (as is your case) and it's guaranteed to work every time.
Click to expand...
Click to collapse
i usually do this also

Flipz77 said:
Personally, on every monthly update I always flash the full factory image (deleting -w if I want to keep my stuff) and then reinstall Magisk and custom kernel by temporarily booting TWRP. I find it much less of a hassle, it applies to major upgrades too (as is your case) and it's guaranteed to work every time.
Click to expand...
Click to collapse
There are monthly updates?
I've not been aware of anything at all until now, because now it's sending me a notification.

koberulz said:
There are monthly updates?
I've not been aware of anything at all until now, because now it's sending me a notification.
Click to expand...
Click to collapse
December will be the last one, sadly

Accidentally OTA updated my pixel, all fine but root gone

So i accidentally updated my pixel firmware via official OTA update (security patch 5. january 2021). First i was scared of a bootloop but it all went fine and booted.
Of course my root is gone now, but i want to root it again. Bootloader is still unlocked. Does anyone know, if i can just flash the magist boot.img again and it will boot fine? Or is there a risk that maybe THIS will cause a bootloop?
Thanks!

ViruuZ said:
So i accidentally updated my pixel firmware via official OTA update (security patch 5. january 2021). First i was scared of a bootloop but it all went fine and booted.
Of course my root is gone now, but i want to root it again. Bootloader is still unlocked. Does anyone know, if i can just flash the magist boot.img again and it will boot fine? Or is there a risk that maybe THIS will cause a bootloop?
Thanks!
Click to expand...
Click to collapse
You need to patch the new boot.img.

sd_shadow said:
You need to patch the new boot.img.
Click to expand...
Click to collapse
Thanks for reply! So i extract my current boot.img, but how to patch it?

ViruuZ said:
Thanks for reply! So i extract my current boot.img, but how to patch it?
Click to expand...
Click to collapse
Open Magisk manager app
Select install magisk
Select and Patch a File
Copy new patched boot.img to pc
Flash

well, was a bit hasty here. I knew i could patch it via magisk, but last time there already was a patched image given. How can i extract my boot.img without root now? Or is there maybe a given for the last update?

ViruuZ said:
well, was a bit hasty here. I knew i could patch it via magisk, but last time there already was a patched image given. How can i extract my boot.img without root now? Or is there maybe a given for the last update?
Click to expand...
Click to collapse
Found my current firmware, will extract it there. Thanks anyway!

ViruuZ said:
well, was a bit hasty here. I knew i could patch it via magisk, but last time there already was a patched image given. How can i extract my boot.img without root now? Or is there maybe a given for the last update?
Click to expand...
Click to collapse
Normally you have to go to google firmware page and download it.
Factory Images for Nexus and Pixel Devices | Google Play services | Google for Developers
developers.google.com

Are you guys having the SafetyNet passed?

sd_shadow said:
You need to patch the new boot.img.
Click to expand...
Click to collapse
No you don't. You only have to repatch the new boot image when a new major Android revision comes out. For example going from Android 11 to 12. I've updated my Pixel 5 every month a new update comes out. And I've always used the same boot.image file. No need to keep wasting your time patching that file. When you look through the OTA files you'll notice that none of those files in the zip file are a boot.image file. Meaning it doesn't touch it when it's doing the OTA.

xT29c said:
You only have to repatch the new boot image when a new major Android revision comes out.
Click to expand...
Click to collapse
That is kind of useful, thank you for sharing. Can someone confirm this?

@hanni2301 Have you succeeded in getting root back ? I got the same problem today....

Why do you ask me?
I always patch the actual boot.img out of the monthly factory image with magisk (beta or Canary) first and flash then the factory image, reboot, flash boot boot.img and afterwards the custom kernel.
@xT29c said that you can reuse ure patched boot.img from last month, as it changes only between different mayor Versions.
So you can save some time, but the process is still the same.

IMO, yes, you should always patch the new boot.img from each months new factory image in Magisk when re-rooting.
Do you need to? i suppose that's up to you. However I think you should want to.
Essentially, you're missing out on any code changes/fixes, etc that Google may have added to the new months kernel.
~ Maybe an idea for a new thread to upload the Pixel 5 stock boot.img from each months new OTA, along with a Magisk patched boot.img. ~

Same issue losing root. But when I try to open Magisk manager app, it says "upgrade to full Magisk Manager to finish the setup. Download and install?" I click "OK". But the next time I try to open it, it just keeps doing the same thing.

leveleyed said:
Same issue losing root. But when I try to open Magisk manager app, it says "upgrade to full Magisk Manager to finish the setup. Download and install?" I click "OK". But the next time I try to open it, it just keeps doing the same thing.
Click to expand...
Click to collapse
I am not sure, but this may be because Magisk Manager is no longer..
get v22
New v22.0 update merges Magisk and Magisk Manager app
Samsung's Galaxy S21 series is now supported too
www.androidpolice.com

Updated to OOS 11.05.1.GM21AA, Magisk not working, TWRP too

Hi - I installed OOS 11.05.1.GM21AA on my OP7P today, and patched my boot.img file with Magisk 24.1.
After going into Fastboot Mode and doing a fastboot flash boot magisk_patched_boot.img, my OP7P rebooted OK, but my OP7P isn't rooted.
Is there something new that I am missing?
Also, is there a way to get both TWRP 3.6.x and Magisk to be available in the same patched boot image? It looks like TWRP completely overwrites the Magisk modded boot.img file, and then is stuck in a Recovery bootloop.
Thanks,
¿GJ?

¿GotJazz? said:
Hi - I installed OOS 11.05.1.GM21AA on my OP7P today, and patched my boot.img file with Magisk 24.1.
After going into Fastboot Mode and doing a fastboot flash boot magisk_patched_boot.img, my OP7P rebooted OK, but my OP7P isn't rooted.
Is there something new that I am missing?
Also, is there a way to get both TWRP 3.6.x and Magisk to be available in the same patched boot image? It looks like TWRP completely overwrites the Magisk modded boot.img file, and then is stuck in a Recovery bootloop.
Than
Click to expand...
Click to collapse
¿GotJazz? said:
Hi - I installed OOS 11.05.1.GM21AA on my OP7P today, and patched my boot.img file with Magisk 24.1.
After going into Fastboot Mode and doing a fastboot flash boot magisk_patched_boot.img, my OP7P rebooted OK, but my OP7P isn't rooted.
Is there something new that I am missing?
Also, is there a way to get both TWRP 3.6.x and Magisk to be available in the same patched boot image? It looks like TWRP completely overwrites the Magisk modded boot.img file, and then is stuck in a Recovery bootloop.
Thanks,
¿GJ?
Click to expand...
Click to collapse
I had the same issue, I had to downgrade to 11.04, grab a new 11.05 ota from oxygen updater app, extract boot from that and go from there

hammered58 said:
I had the same issue, I had to downgrade to 11.04, grab a new 11.05 ota from oxygen updater app, extract boot from that and go from there
Click to expand...
Click to collapse
Is this the Oxygen Updater App you are referring to, or is it the incremental OTA that I would get from a "OnePlus system update" on a now unrooted and unTWRP'd phone?
Also ... Will I lose any data if I downgrade to 11.04? I've never downgraded before, so do I just install the stock 11.04 image via TWRP like I did the 11.05 image?
Lastly ... I'm assuming this will just get me root, but not including TWRP?

¿GotJazz? said:
Is this the Oxygen Updater App you are referring to, or is it the incremental OTA that I would get from a "OnePlus system update" on a now unrooted and unTWRP'd phone?
Also ... Will I lose any data if I downgrade to 11.04? I've never downgraded before, so do I just install the stock 11.04 image via TWRP like I did the 11.05 image?
Lastly ... I'm assuming this will just get me root, but not including TWRP?
Click to expand...
Click to collapse
1. Yes that is the app Iam talking about.
2. Will you lose data? I always do a format (after the down grade) so I lost data but I never tried it with out formating, it might work, you could try it and see what happens .If it acts strange then it will need a format.
3. Yes you install 11.04 via twrp
4. Yes you will get root but if you want twrp you will have to reinstall
Once you down grade install the oxygen updater, let it download the update , don't let it install it, you can then grab the update from your root directory as it doesn't hide it, then your good to go, you can extract the boot.img by using payload dumper, then take the boot.img and patch that with the magisk app . ( Just install the magisk app on your downgraded 11.04 you don't need root to run the app ) ,,Then after your thru upgrading to 11.05 and after setup just reboot to bootloader and run the magisk patched boot.img, ( fastboot flash boot boot.img) reboot and wait a minute for the magisk app to appear ,it will want to install and do a reboot . Then you can install twrp if you want.
This is how I did it and it worked, you may find a simpler way once you start doing it ,, hth

I'm reluctant to go and do a total wipe (which I have been reading will be required to downgrade).
I'm wondering if the problem I'm facing is that my OP7P needed to be rooted for Magisk 24.1 to be able to successfully patch the latest OP7P build? My OP7P isn't rooted right now although I have v24.1 installed.
I accidentally had installed the latest 11.0.5 OTA before I had a chance to attempt re-rooting.

¿GotJazz? said:
I'm reluctant to go and do a total wipe (which I have been reading will be required to downgrade).
I'm wondering if the problem I'm facing is that my OP7P needed to be rooted for Magisk 24.1 to be able to successfully patch the latest OP7P build? My OP7P isn't rooted right now although I have v24.1 installed.
I accidentally had installed the latest 11.0.5 OTA before I had a chance to attempt re-rooting.
Click to expand...
Click to collapse
Right now I have 11.05 installed and Iam rooted, tomorrow I will unroot and downgrade to 11.04 without wiping and let you know what happens iam curious myself

I'm rooted now. I did have to wipe my OP7P to get root (due solely to my own heavy-handed approach to getting root again).
I posted in another thread, and I think that the thing that might have made a difference for me wasn't that I wiped, but possibly that I removed encryption before installing the Magisk-patched boot image.

¿GotJazz? said:
I'm rooted now. I did have to wipe my OP7P to get root (due solely to my own heavy-handed approach to getting root again).
I posted in another thread, and I think that the thing that might have made a difference for me wasn't that I wiped, but possibly that I removed encryption before installing the Magisk-patched boot image.
Click to expand...
Click to collapse
I guess that's possible , I never thought of that, the only way to know is to do a fresh install only this time setup encryption then try to install magisk . But for now your rooted,, until the bug hits you or me to try another rom then we can start the whole thing over again,,

Question Tmo users who converted to global at A11-OOS11, how did you get to 13 rooted?

I cant do normal OTA updates, nor can I install them with the built in installer in settings (that I gained with conversion). Im not exactly sure why and trying to figure this out. Were you able to update as normal to A13?
Its possible I broke something (cant think of what), so Im restoring my after-root twrp "base" backup to see if it can OTA.
Figured Id ask in the meantime...

TimmyP said:
I cant do normal OTA updates, nor can I install them with the built in installer in settings (that I gained with conversion). Im not exactly sure why and trying to figure this out. Were you able to update as normal to A13?
Its possible I broke something (cant think of what), so Im restoring my after-root twrp "base" backup to see if it can OTA.
Figured Id ask in the meantime...
Click to expand...
Click to collapse
You have to uninstall magisk/restore images. Then start ota. Then before you reboot go into magisk again and install to opposite slot and reboot . After ota has installed. Stock boot image is the only way it works. It's will fail upon checksum of partitions by google

I figured as I just went back to my base savior A11 rom fresh root, and still nothing. Thank you!
Uninstall magisk it automatically restores boot images right?
*Actually do I need stock boot? I have twrp. Where do I get stock boot image?

Im screwed. Its unable to restore my old image from usb, so Im bricked now. No idea what to do.

mattie_49 said:
You have to uninstall magisk/restore images. Then start ota. Then before you reboot go into magisk again and install to opposite slot and reboot . After ota has installed. Stock boot image is the only way it works. It's will fail upon checksum of partitions by google
Click to expand...
Click to collapse
Do you know how I can get back to stock boot?
NM found it. So to be sure, when i want to move from A11 I need to uninstall Magisk, boot to fastboot, then fastboot flash stock boot.img?

Here

^But I have twrp, so wont restoring just bring me to unlocked bootloader unrooted with twrp? (*still not stock?)
*Sorry for the questions. It just seems TWRP has problems restoring backup completely (or I missed something, I backed up everything in TWRP maybe I dont need to do that?).
Im trying to avoid what happened a couple nights ago, because I lost confidence in TWRP on this phone. Usually, its just something ****s up? Well restore your backup, because you just made one. That didn't work completely (it didn't restore /data), and I had to set up a ton I dont want to do again, unless Im on custom A13 rom. Got savegames!
Thanks for all help.

I was on android 12 with april 2022 security update, so it was a very very early android 12 build. I couldn't update via OTA cause I kept getting "update failed" I was rooted, had data I didn't wanna lose so I just ignored it.
I'm now on A13 with root. what I did was: MSM tool back to A11, update via OTA until I reach final official build, extract the boot file through msmtool, patched it with magisk, flashed it via fastboot, job done.

Couldnt Magisk patch boot image from app? Instead of extracting it? Thats how I did it on 11.
I also dont know how to use msm tool to get to 11, or even where to get files. *I think this is it? General - OnePlus 9 11.2.22.2 (T-Mobile) MSM Download Tool | XDA Forums
*Thats exactly whats happening to me too. update failed. So I guess this would be a sure fix.

pubmastervnt said:
I was on android 12 with april 2022 security update, so it was a very very early android 12 build. I couldn't update via OTA cause I kept getting "update failed" I was rooted, had data I didn't wanna lose so I just ignored it.
I'm now on A13 with root. what I did was: MSM tool back to A11, update via OTA until I reach final official build, extract the boot file through msmtool, patched it with magisk, flashed it via fastboot, job done.
Click to expand...
Click to collapse
Wait. How did you unlock bootloader (after MSM put your phone back to lock BL I assume)? Is the option later available on Tmobile roms? Did you need a token?

pubmastervnt said:
I was on android 12 with april 2022 security update, so it was a very very early android 12 build. I couldn't update via OTA cause I kept getting "update failed" I was rooted, had data I didn't wanna lose so I just ignored it.
I'm now on A13 with root. what I did was: MSM tool back to A11, update via OTA until I reach final official build, extract the boot file through msmtool, patched it with magisk, flashed it via fastboot, job done.
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you get update failed bec. of the magisk image. you have to restore to stock image before you download the OTA. in magisk dashboard, go to uninstall magisk. choose RESTORE IMAGES. download the ota. do not reboot. go to magisk and install magisk. choose install Magisk after OTA (or something) then press Let's go. and reboot.

jmadiaga said:
you get update failed bec. of the magisk image. you have to restore to stock image before you download the OTA. in magisk dashboard, go to uninstall magisk. choose RESTORE IMAGES. download the ota. do not reboot. go to magisk and install magisk. choose install Magisk after OTA (or something) then press Let's go. and reboot.
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Click to collapse
Doesn't having twrp boot image installed mean that magisk restored twrp image to when before magisk patches it (so it's not actually stock)? Doesn't it just restore a non rooted image with twrp on it?

jmadiaga said:
you get update failed bec. of the magisk image. you have to restore to stock image before you download the OTA. in magisk dashboard, go to uninstall magisk. choose RESTORE IMAGES. download the ota. do not reboot. go to magisk and install magisk. choose install Magisk after OTA (or something) then press Let's go. and reboot.
Click to expand...
Click to collapse
This fails if you have TWRP.

pubmastervnt said:
I was on android 12 with april 2022 security update, so it was a very very early android 12 build. I couldn't update via OTA cause I kept getting "update failed" I was rooted, had data I didn't wanna lose so I just ignored it.
I'm now on A13 with root. what I did was: MSM tool back to A11, update via OTA until I reach final official build, extract the boot file through msmtool, patched it with magisk, flashed it via fastboot, job done.
Click to expand...
Click to collapse
Are you tmobile? How did you unlock BL on 13?