Database Develop

Pixel 2 XL Failed OTA Magisk Meathod

Been using the Magisk OTA installation meathod on my Pixel 2 XL as outlined on
https://topjohnwu.github.io/Magisk/tutorials.html#ota-installation
Has always worked but with todays January 2019 update now once I rebooted phone goes to recovery says
"Can't load android system. your data may be corrupt" all it gives is retry or factory reset.
I have tried several times and same error

I have exactly the same problem! What I did notice is that the original boot.img's size is ~40Mb and the size of patched_boot.img is ~25Mb. I was able to get the phone to boot up normally again by reflashing boot.img.

arb1125 said:
I have exactly the same problem! What I did notice is that the original boot.img's size is ~40Mb and the size of patched_boot.img is ~25Mb. I was able to get the phone to boot up normally again by reflashing boot.img.
Click to expand...
Click to collapse
Where did you get that from?

I extracted the boot.img from the factory image zip file.

arb1125 said:
I extracted the boot.img from the factory image zip file.
Click to expand...
Click to collapse
Was is from the full 2019 jan OTA?

arb1125 said:
I extracted the boot.img from the factory image zip file.
Click to expand...
Click to collapse
I am in the bootloader but its not being detected, is it because I probably had usb debugging turned off?

Yes it was from the Jan 2019 factory image.
I used the fastboot command: fastboot boot boot.img.
I do have usb debug enabled
---------- Post added at 09:17 PM ---------- Previous post was at 09:04 PM ----------
I don't think having usb debugging disabled will affect fastboot

arb1125 said:
Yes it was from the Jan 2019 factory image.
I used the fastboot command: fastboot boot boot.img.
I do have usb debug enabled
---------- Post added at 09:17 PM ---------- Previous post was at 09:04 PM ----------
I don't think having usb debugging disabled will affect fastboot
Click to expand...
Click to collapse
I was unable to get adb devices to detect it in fastboot, i am in stock recovery now trying the adb sideload of the ota
that worked
back up and running ...phew
usb debugging was disabled. re enabled now
i did also notice the boot.img was 4.25mb vs what should be about 25-40mb

The one I extracted from the factory zip was around 40 Mb.

arb1125 said:
The one I extracted from the factory zip was around 40 Mb.
Click to expand...
Click to collapse
when I use Magisk to patch , the patched vs comes out to 4.25 and i think thats where the problem lies

I tried a few more things later this afternoon..
First I checked and saw that there is a newer version of Platform tools (platform-tools_r28.0.1-windows.zip) downloaded and worked in the new platform-tools directory.
I then flashed TWRP
I then I then tried to install Magisk17.3.zip using TWRP when install was complete I tried to reboot to system. It rebooted back to TWRP. I used fastboot to reinstall the original boot.img
I then tried to install Magisk18.1.zip using TWRP when install was complete I tried to reboot to system. It rebooted back to TWRP. I used fastboot to reinstall the original boot.img
I think I'm going to try the diagnostic version of Magisk 18.1 next.
Hopefully there is someone else who has a solution to our problem.

arb1125 said:
I tried a few more things later this afternoon..
First I checked and saw that there is a newer version of Platform tools (platform-tools_r28.0.1-windows.zip) downloaded and worked in the new platform-tools directory.
I then flashed TWRP
I then I then tried to install Magisk17.3.zip using TWRP when install was complete I tried to reboot to system. It rebooted back to TWRP. I used fastboot to reinstall the original boot.img
I then tried to install Magisk18.1.zip using TWRP when install was complete I tried to reboot to system. It rebooted back to TWRP. I used fastboot to reinstall the original boot.img
I think I'm going to try the diagnostic version of Magisk 18.1 next.
Hopefully there is someone else who has a solution to our problem.
Click to expand...
Click to collapse
Any solution on to getting this to install?

I finally got everything working by:
1) downloading platform tools version 28.0.1
2) downloading the January 2019 factory release and then unzipped it into the platform tools directory
3) booted phone into bootloader
4) ran flash-all from platform-tools
5) booted up system and skipped through set up screens.
6) went to setup and activated developer menu
7) in developer, enabled USB debugging and set default USB mode to file transfer
8) copied magisk version 18 from PC to phone main directory
9) copied trwp zip version 3.2.3-1 to phone main directory
10) rebooted phone into bootloader
11) typed fastboot boot twrp version 3 2.3-1 Img
12) phone should reboot into twrp, if not try again
13) once in twrp install twrp zip
14) I think the phone rebooted after that, not sure, anyway
15) reboot to bootloader and select recovery
16) then install magisk
17) then reboot and believe it or not it worked
I'm sorry I didn't get back to you sooner.

So if I am not using TWRP shouldn't I just be able to use magisk with standard recovery?
Every time I flash that patched boot image the phone just boots to the bootloader and does not boot.
I'm using the current stable condition at 18.0
Sent from my Pixel 2 XL using Tapatalk

Yes you should, but for some reason it doesn't work.
It seems to boot up fine if you first flash twrp and then flash magisk.

I just dirty flashed the January (2019) security update on my Google Pixel 2 XL and then reinstalled Magisk 18, but whenever I reboot my phone, Magisk is no longer installed.
I flashed the patched boot img using fastboot (I also have stock recovery) and the first time it boots, Magisk is installed and works fine, but if I reboot after that, it's no longer installed.

What fastboot command did you use to flash the modified boot image?

arb1125 said:
What fastboot command did you use to flash the modified boot image?
Click to expand...
Click to collapse
fastboot boot patched_boot.img

I think you need to use: flashboot flash boot boot.img
---------- Post added at 11:13 PM ---------- Previous post was at 11:11 PM ----------
Sorry not boot.img but patched_boot.img

Thanks, that did it.

DP3 Q Beta T-Mobile Guide

Not used to giving guides
TWRP Backup - https://forum.xda-developers.com/oneplus-6t/how-to/dp3-twrp-backup-t-mobile-magisk-t3952304
But you need to download the the QB3 update zip and upack the payload.bin with a payload dumper
Make sure your device is on international and unlocked of course
Boot into Twrp recovery and copy the system.img and vendor.img onto device
Flash both images in respective partitions and on both A and B slot
Wipe data after flashing and reboot into bootloader
From directory of the rest of IMG you've extracted you'll want use fastboot and flash:
fastboot flash boot_a boot.img
fastboot flash boot_b boot.img
fastboot flash dtbo_a dtbo.img
fastboot flash dtbo_b dtbo.img
fastboot flash vbmeta_a vbmeta.img
fastboot flash vbmeta_b vbmeta.img
Then reboot and done
Don't delete files just yet
Haven't tried but certain you can root this way:
After you've setup your device you can download magisk manager. Select the boot.img on you pc, in your dump folder, and copy it to your device again. In the magisk manager patch the boot image you copied, and copy that onto your PC
Now boot into bootloader and use command
fastboot flash boot magisk_patched.img
Or if that doesn't work try
fastboot flash boot_a magisk_patched.img
fastboot flash boot_b magisk_patched.img
And if device doesn't boot for any reason just flash back the stock boot.img
Enjoy

-About TWRP- (from my knowledge)
DON'T FLASH TWRP
I think recovery is running in boot.img now I'm not sure
But it seems we may need to patch the bootloader to have the recovery in there
Ive unpack both boot IMG from dp3 and Twrp IDK if they're made different but they look different unfortunately I don't understand enough to patch but hopefully that helps idk
So I wouldn't try flashing or booting into recovery it'll just freeze and flashing will mess up the whole device and you'll have to use msmtool again and redo process

ayjays said:
-About TWRP- (from my knowledge)
DON'T FLASH TWRP
I think recovery is running in boot.img now I'm not sure
But it seems we may need to patch the bootloader to have the recovery in there
Ive unpack both boot IMG from dp3 and Twrp IDK if they're made different but they look different unfortunately I don't understand enough to patch but hopefully that helps idk
So I wouldn't try flashing or booting into recovery it'll just freeze and flashing will mess up the whole device and you'll have to use msmtool again and redo process
Click to expand...
Click to collapse
It's not about patching.
Flash stock boot.img to both slots as I'm guessing you aren't sure which one your on.
I'll give u a twrp that works for qb3 also proper instructions.
T-Mobile version downside is we can't flash ota and we can't boot qb3 wth fastboot twrp so flashing the twrp.img now replaces kernel in boot.img.

Thanks, so I'll have to use the "flash recovery Twrp.img" command now?
Or, is it a custom one Twrp only for dp3?
And thank you by the way I'll probably post a guide using a backup from Twrp then
And I'm aware of checking the active slot with a command but I have trouble switching to the opposite after rebooting because of set_active command maybe I'm doing something wrong

ayjays said:
Thanks, so I'll have to use the "flash recovery Twrp.img" command now?
Or, is it a custom one Twrp only for dp3?
And thank you by the way I'll probably post a guide using a backup from Twrp then
Click to expand...
Click to collapse
Our recovery is built in boot.img.
Uploading now
---------- Post added at 10:10 PM ---------- Previous post was at 09:42 PM ----------
Boot to fastboot
fastboot getvar all
See which slot is active.
If it's slot a then this
fastboot flash boot_a qb3-twrp.img
If it's slot b then this
fastboot flash boot_b qb3-twrp.img
Once flashed choose boot recovery and once it boots u can flash stock boot.img back then flash magisk 19.4 while in twrp.
U must use USB drive decryption isn't working yet. Or adb sideload.
I've only tested this on T-Mobile version running qb3.
All credits to @mauronofrio I used his source with some modifications
https://www.androidfilehost.com/?fid=6006931924117924335

ayjays said:
Thanks, so I'll have to use the "flash recovery Twrp.img" command now?
Or, is it a custom one Twrp only for dp3?
And thank you by the way I'll probably post a guide using a backup from Twrp then
And I'm aware of checking the active slot with a command but switching to it after rebooting because I of set_active command maybe I'm doing something wrong
Click to expand...
Click to collapse
Did you try what I posted

twinnfamous said:
It's not about patching.
Flash stock boot.img to both slots as I'm guessing you aren't sure which one your on.
I'll give u a twrp that works for qb3 also proper instructions.
T-Mobile version downside is we can't flash ota and we can't boot qb3 wth fastboot twrp so flashing the twrp.img now replaces kernel in boot.img.
Click to expand...
Click to collapse
twinnfamous said:
Did you try what I posted
Click to expand...
Click to collapse
Not yet, but if you flash the stock boot image after then would there be any point in flashing the patch boot before hand? And, what I was looking for is a more permanent solution. So, that it'll boot and you can go to Twrp whenever without having to use a PC.
If that's the case and it works then nevermind but I remember and if I'm mistaken that, even if you flash the Twrp installer it'll still boot loop after the installation.
If that's still a problem maybe someone more skilled than I, or even you, can patch the stock bootimg themselves. And, eveb get it working for the future time on Q
Maybe unpacking and looking inside the boot.img and Twrp.img, the repacking with the proper adjustments

ayjays said:
Not yet but if you flash the stock boot image after then would there any point in flashing the patch boot before hand. And, what I was looking for is a more permanent solution. So, that it'll boot and you can go to Twrp whenever without having to use a PC.
If that's the case and it works then nevermind but I remember and if I'm mistaken that, even if you flash the Twrp installer it'll still boot loop after the installation.
If that's still a problem maybe someone more skilled than I, or even you, can patch the stock bootimg themselves. And, eveb get it working for the future time on Q
Maybe unpacking and looking inside the boot.img and Twrp.img, the repacking with the proper adjustments
Click to expand...
Click to collapse
I'm aware of the permanent solution your looking for. This is the first step. With magisk installed u can simply use the installer in my android file host by selecting modules push the + sign and find the installer then without rebooting install magisk direct install. Then u can boot to recovery with advanced reboot menu. U can also just do everything in twrp. After u flash twrp.img .

ayjays said:
Not used to giving guides
But you need to download the the QB3 update zip and upack the payload.bin with a payload dumper
Make sure your device is on international and unlocked of course
Boot into Twrp recovery and copy the system.img and vendor.img onto device
Flash both images in respective partitions and on both A and B slot
Wipe data after flashing and reboot into bootloader
From directory of the rest of IMG you've extracted you'll want use fastboot and flash:
fastboot flash boot_a boot.img
fastboot flash boot_b boot.img
fastboot flash dtbo_a dtbo.img
fastboot flash dtbo_b dtbo.img
fastboot flash vbmeta_a vbmeta.img
fastboot flash vbmeta_b vbmeta.img
Then reboot and done
Don't delete files just yet
Haven't tried but certain you can root this way:
After you've setup your device you can download magisk manager. Select the boot.img on you pc, in your dump folder, and copy it to your device again. In the magisk manager patch the boot image you copied, and copy that onto your PC
Now boot into bootloader and use command
fastboot flash boot magisk_patched.img
Or if that doesn't work try
fastboot flash boot_a magisk_patched.img
fastboot flash boot_b magisk_patched.img
And if device doesn't boot for any reason just flash back the stock boot.img
Enjoy
Click to expand...
Click to collapse
Just like my guide last month on OnePlus forums as I am jacksummers, even if u do this we still have no calling ability whatsoever. SMS is barely working and it still blows for us. I have been trying everything to get the whole thing to not only flash and install but be able to boot with no hardware mismatch... It won't work unless we can resign the firmware with OnePlus signing keys after changing everything to say "single" still. Since we cannot change the phone. There is still something in the phone that comes back as op6tsingle

fullofhell said:
Just like my guide last month on OnePlus forums as I am jacksummers, even if u do this we still have no calling ability whatsoever. SMS is barely working and it still blows for us. I have been trying everything to get the whole thing to not only flash and install but be able to boot with no hardware mismatch... It won't work unless we can resign the firmware with OnePlus signing keys after changing everything to say "single" still. Since we cannot change the phone. There is still something in the phone that comes back as op6tsingle
Click to expand...
Click to collapse
My phone is off rn but I receive calls and texts and I've been receiving calls on my T-Mobile OnePlus 6t since I flashed it... Make sure you're on international version
the only problems i ran in myself so far are app optimzations and when i'd recieved calls and answer my voice would sound weird to them but id hear them perfectly (not my problem lol jk jk)

ayjays said:
My phone is off rn but I receive calls and texts and I've been receiving calls on my T-Mobile OnePlus 6t since I flashed it... Make sure you're on international version
the only problems i ran in myself so far are app optimzations and when i'd recieved calls and answer my voice would sound weird to them but id hear them perfectly (not my problem lol jk jk)
Click to expand...
Click to collapse
Yeah u need to flash every other partition in the bin dump. If it tells u u cannot bc it's a critical partition then ya can't. Once u do so u will have full function and on calls. It's basically everything in the payload.bin but abl,xbl, hyp, and a few others that tell ya they're critical partitions. Once u do that everything works Perfectly.. my main issue was the call issue u described..but do as I suggest and all will work

​
fullofhell said:
Yeah u need to flash every other partition in the bin dump. If it tells u u cannot bc it's a critical partition then ya can't. Once u do so u will have full function and on calls. It's basically everything in the payload.bin but abl,xbl, hyp, and a few others that tell ya they're critical partitions. Once u do that everything works Perfectly.. my main issue was the call issue u described..but do as I suggest and all will work
Click to expand...
Click to collapse
That's why I said to flash system and vendor in Twrp wipe data then flash the other ones I stated above in fastboot mode everything should be flashed without a problem just follow my guide it's not hard

I'm uploading twrp backup soon with root

DO AT YOUR OWN RISK I WONT BE RESPONSIBLE FOR ANYTHING!!!!!!
EVERYTHING SO FAR WORKS WITH JUST A LIL LAG HERE AND THERE
Tmo oneplus 6t fastboot flash one click Android Q DP3. i test it with and without wiping data. i just put all the files together. just run the flash bat. You need to be on latest beta. i tested myself twice.
root= Download patch q boot.img.
fastboot flash boot img after first boot. then just download canary magisk manager. a quick google search will bring it up
have fun and remember anything goes south you can msm tool back to stock!
flash all: https://drive.google.com/open?id=1D_-B5z-rHGDr6RHjDQA0hz-janrsypdv
patch boot img: https://drive.google.com/open?id=1nbiapy6HZH4VNK4JuEF9KxSIlsBRKgsX

omariscal1019 said:
DO AT YOUR OWN RISK I WONT BE RESPONSIBLE FOR ANYTHING!!!!!!
EVERYTHING SO FAR WORKS WITH JUST A LIL LAG HERE AND THERE
Tmo oneplus 6t fastboot flash one click Android Q DP3. i test it with and without wiping data. i just put all the files together. just run the flash bat. You need to be on latest beta. i tested myself twice.
root= Download patch q boot.img.
fastboot flash boot img after first boot. then just download canary magisk manager. a quick google search will bring it up
have fun and remember anything goes south you can msm tool back to stock!
flash all: https://drive.google.com/open?id=1D_-B5z-rHGDr6RHjDQA0hz-janrsypdv
patch boot img: https://drive.google.com/open?id=1nbiapy6HZH4VNK4JuEF9KxSIlsBRKgsX
Click to expand...
Click to collapse
https://forum.xda-developers.com/oneplus-6t/development/dp3-twrp-backup-t-mobile-magisk-t3952304 TWRP backup good job on the not wiping data though

ayjays said:
That's why I said to flash system and vendor in Twrp wipe data then flash the other ones I stated above in fastboot mode everything should be flashed without a problem just follow my guide it's not hard
Click to expand...
Click to collapse
Hi, yes we are saying the same thing.. also note, for me, Calls last for a day, then broken again. Cannot use daily if u need to make phone calls. Testing with TMobile modem.img to see if resolved.

fullofhell said:
Hi, yes we are saying the same thing.. also note, for me, Calls last for a day, then broken again. Cannot use daily if u need to make phone calls. Testing with TMobile modem.img to see if resolved.
Click to expand...
Click to collapse
i made a one click fastboot let me what happens so.ican remove it and add t mo modem

omariscal1019 said:
i made a one click fastboot let me what happens so.ican remove it and add t mo modem
Click to expand...
Click to collapse
Will do buddy. Setting mine up as we speak.. I am down to just my fajita right now, bricked my pixel 3 again as I'm working on an exploit to unlock my locked down version ....

Can you relock bootloader after this? Don't want twrp or root

supaet said:
Can you relock bootloader after this? Don't want twrp or root
Click to expand...
Click to collapse
Not sure try "fastboot oem lock" in the bootloader after

"error boot prepare" in fastboot trying to flash magisk patched boot.img

Hi,
I'm coming from a rooted November image for my Pixel 4XL and am having trouble getting the December magisk_patched.img to take. I've successfully applied google stock December image, rebooted to Android, patched boot.img with magisk, but when I try to flash magisk_patched.img in fastboot, it flashes, but reboots to fastboot with "error boot prepare" displayed. Flashing stock boot.img gets back to Android without issue (but no root).
I've tried flashing with both cmd and powershell. I've tried "fastboot flash boot magisk_patched.img" (and also fastboot flash boot_a magisk_patched.img and fastboot flash boot_b magisk_patched.img). I'm using Magisk Manager 7.4.
Not sure what else to try. I'd rather not do a factory reset at this point.
Any suggestions?

DoughMucker said:
Hi,
I'm coming from a rooted November image for my Pixel 4XL and am having trouble getting the December magisk_patched.img to take. I've successfully applied google stock December image, rebooted to Android, patched boot.img with magisk, but when I try to flash magisk_patched.img in fastboot, it flashes, but reboots to fastboot with "error boot prepare" displayed. Flashing stock boot.img gets back to Android without issue (but no root).
I've tried flashing with both cmd and powershell. I've tried "fastboot flash boot magisk_patched.img" (and also fastboot flash boot_a magisk_patched.img and fastboot flash boot_b magisk_patched.img). I'm using Magisk Manager 7.4.
Not sure what else to try. I'd rather not do a factory reset at this point.
Any suggestions?
Click to expand...
Click to collapse
Just a couple things to try.
1. Did you fastboot the factory image to both slots? If not I would try that first, without the -w of course.
2. When you patched the boot.img, was dm-verity checked off? If not, enable it, then patch it again.
3. Have you tried from a cmd....
fastboot flash boot magisk_patched.img --slot=all
Whatever it is, I hope you get it working :good:

Badger50 said:
Just a couple things to try.
1. Did you fastboot the factory image to both slots? If not I would try that first, without the -w of course.
2. When you patched the boot.img, was dm-verity checked off? If not, enable it, then patch it again.
3. Have you tried from a cmd....
fastboot flash boot magisk_patched.img --slot=all
Whatever it is, I hope you get it working :good:
Click to expand...
Click to collapse
Thanks for the suggestions. I tried each one. Unfortunately, no luck.

DoughMucker said:
Thanks for the suggestions. I tried each one. Unfortunately, no luck.
Click to expand...
Click to collapse
Bummer man! How about different 2.0 USB A to USB C cables and ports??

Badger50 said:
Bummer man! How about different 2.0 USB A to USB C cables and ports??
Click to expand...
Click to collapse
Just tried that too. :crying:

DoughMucker said:
Just tried that too. :crying:
Click to expand...
Click to collapse
Sheesh! You using canary or stable magisk? Either way, I'd switch to the other one and try that as well. If that doesn't work, then you may have no choice but to either factory reset, or remove all your drives, platform-tools, redownload everything, and start over. I can't think of many other things to try

Badger50 said:
Sheesh! You using canary or stable magisk? Either way, I'd switch to the other one and try that as well. If that doesn't work, then you may have no choice but to either factory reset, or remove all your drives, platform-tools, redownload everything, and start over. I can't think of many other things to try
Click to expand...
Click to collapse
I was stable before, but had just tried canary. Same situation.
I'm reading https://forum.xda-developers.com/pixel-3-xl/help/december-update-rootable-t4013605/page6 and wondering if it's related to systemless hosts for adaway which i did not disable.

DoughMucker said:
I was stable before, but had just tried canary. Same situation.
I'm reading and wondering if it's related to systemless hosts for adaway which i did not disable.
Click to expand...
Click to collapse
I don't think so, but I suppose anything is possible. I've left magisk modules intact before, but never had the trouble like your having. Shoot, you might even try flashing a different factory image image other than what was recommended by google. People seem to have had the best luck with the .012.A1 version which is supposedly for AT&T only.

Badger50 said:
I don't think so, but I suppose anything is possible. I've left magisk modules intact before, but never had the trouble like your having. Shoot, you might even try flashing a different factory image image other than what was recommended by google. People seem to have had the best luck with the .012.A1 version which is supposedly for AT&T only.
Click to expand...
Click to collapse
I'm using 012.A1. Google updated their factory image/OTA site and removed the reference to ATT. I had double checked someone else's phone here that got the Dec OTA update and she had 012.A1 after being on 007.A3.
Going to take a break from trying things for a day or so because it's frustrating. Arrghh.
And thanks for the help!

Badger50 said:
I don't think so, but I suppose anything is possible. I've left magisk modules intact before, but never had the trouble like your having. Shoot, you might even try flashing a different factory image image other than what was recommended by google. People seem to have had the best luck with the .012.A1 version which is supposedly for AT&T only.
Click to expand...
Click to collapse
I did one final thing and it worked...I flashed your patched boot.img from here and it worked. Was it .012.A1? What version of Magisk Manager are you using?

DoughMucker said:
I did one final thing and it worked...I flashed your patched boot.img from here and it worked. Was it .012.A1? What version of Magisk Manager are you using?
Click to expand...
Click to collapse
Yep, that was from the .012.A1 factory image. I'm using stable magisk. Question, did you have dm-verity checked off before you patched the boot.img, and, did you disable all magisk modules before you patched and flashed the boot.img? Either way, I'm glad you got it to boot up :good::good:

Badger50 said:
Yep, that was from the .012.A1 factory image. I'm using stable magisk. Question, did you have dm-verity checked off before you patched the boot.img, and, did you disable all magisk modules before you patched and flashed the boot.img? Either way, I'm glad you got it to boot up :good::good:
Click to expand...
Click to collapse
The first time I successfully patched the November boot.img I did not check off dm-verity. I didn't either for the first time(s) I tried the December image. I only tried, unsuccessfully, with dm-verity checked after you mentioned it here.
I did have the Systemless Hosts module enabled when patching the December image. This is what I was referring to earlier when I mentioned I thought it was related to systemless hosts for adaway. I actually didn't realize that when you enabled that in Magisk Manager, that it installed a module. So I never thought I had a module active, but I did.

To end this saga...after getting root again, I did a Titanium Backup, Factory Reset, and re-rooted by patching boot.img again with Magisk Manager canary. It went smoothly, as it should have originally. Now to restore....

This error seems to occur when you flash a boot.img that doesn't match the exact firmware version.
=> Download the correct, currently installed full firmware package, extract the boot.img and flash it.

Solution
This occurs when you're on Android 11 build and try to install the Android 10 build.
There's a simple fix though, thankfully.
Download the Android 10 ota image for Pixel 4 XL from google, and extract the dtbo.img from it. Flash it using
fastboot flash dtbo_a dtbo.img
fastboot flash dtbo_b dtbo.img
If that doesn't work, you can flash the whole stock Android 10 build and then you can boot whatever you were trying to.
Please click "Thanks" if this worked for you so that others can see.

Same Issue on Pixel 3a XL - please Help
DoughMucker said:
Hi,
I'm coming from a rooted November image for my Pixel 4XL and am having trouble getting the December magisk_patched.img to take. I've successfully applied google stock December image, rebooted to Android, patched boot.img with magisk, but when I try to flash magisk_patched.img in fastboot, it flashes, but reboots to fastboot with "error boot prepare" displayed. Flashing stock boot.img gets back to Android without issue (but no root).
I've tried flashing with both cmd and powershell. I've tried "fastboot flash boot magisk_patched.img" (and also fastboot flash boot_a magisk_patched.img and fastboot flash boot_b magisk_patched.img). I'm using Magisk Manager 7.4.
Not sure what else to try. I'd rather not do a factory reset at this point.
Any suggestions?
Click to expand...
Click to collapse
Pixel 3aXL with LineageOS 17
I tried to install Magisk following this guide https://magisk.download/root-pixel-3a-3a-xl/
I am stuck in Fastboot now. No ADB Connection.
How can I get out of that?
I used the boot.img from the firmware I built Lineage on. Should I use a boot.img from LineageOS .zip?
What is dm-verity?
Can I get to my previous unrooted device?
''bootslot: b
enter reason: error boot prepare''

dadu1257 said:
Pixel 3aXL with LineageOS 17
I tried to install Magisk following this guide https://magisk.download/root-pixel-3a-3a-xl/
I am stuck in Fastboot now. No ADB Connection.
How can I get out of that?
I used the boot.img from the firmware I built Lineage on. Should I use a boot.img from LineageOS .zip?
What is dm-verity?
Can I get to my previous unrooted device?
''bootslot: b
enter reason: error boot prepare''
Click to expand...
Click to collapse
Post your question on the Pixel 3a XL 'Question and Answer' thread, not the Pixel 4 XL 'Question and Answer' thread.
or
Post your question on the LineageOS 17 thread.

OOS stable boot image and patched magisk boot image both for 11.1.1.1.

Leaving this here as i ended up boot looping from installing custom kernel, and it being a new release i was pulling my hair trying to figure this out.
Flashed through fastboot with "fastboot flash boot_a XX.img, fastboot flash boot_b XX.img"
Magisk included as thats the one i ended up using.
Save yourself the headache if you are planning on installing a custom kernel for now, and wait till the kinks have been ironed out.

I found a workaround. Firstly go to fastboot mode and flash stable.img from here https://forum.xda-developers.com/t/...os11-open-beta-2-3-and-stable-latest.4316563/ and boot into recovery. Now download TWRP and magisk and transfer to internal storage. Now flash TWRP and then download full OTA from here And put in storage https://www.xda-developers.com/oneplus-6-6t-oxygenos-11-1-1-1/
and flash it. Don't reboot once it says done. Go back and re install twrp.zip. Now reboot. Go to recovery and install magisk and clear dalvik. Now reboot and enjoy.
Thanks to
KizuYuna and Skanda Hazarika for providing stable.img and OTA respectively.​

235anders15 said:
Leaving this here as i ended up boot looping from installing custom kernel, and it being a new release i was pulling my hair trying to figure this out.
Flashed through fastboot with "fastboot flash boot_a XX.img, fastboot flash boot_b XX.img"
Magisk included as thats the one i ended up using.
Save yourself the headache if you are planning on installing a custom kernel for now, and wait till the kinks have been ironed out.
Click to expand...
Click to collapse
So I just flash the Magisk Patched into a and b slots and that should get me root using fastboot flash commands mentioned above? Sorry just wanted to double-check given that I had almost bricked my phone y'day :-D

sam_htc_touch said:
So I just flash the Magisk Patched into a and b slots and that should get me root using fastboot flash commands mentioned above? Sorry just wanted to double-check given that I had almost bricked my phone y'day :-D
Click to expand...
Click to collapse
Thats what worked for me, had to improvise as the OTA was brand new when I installed it, and bricked it with a new kernel, and had tried to fix it by flashing an old boot img but ended up complicating things even more.
You could always grab the stock 11.1.1.1 boot img and patch it in magisk manager yourself but procedure would be the same in fastboot

235anders15 said:
Thats what worked for me, had to improvise as the OTA was brand new when I installed it, and bricked it with a new kernel, and had tried to fix it by flashing an old boot img but ended up complicating things even more.
You could always grab the stock 11.1.1.1 boot img and patch it in magisk manager yourself but procedure would be the same in fastboot
Click to expand...
Click to collapse
Thanks a bunch for confirming, this gives me confidence and will go with patching mine as well

sam_htc_touch said:
Thanks a bunch for confirming, this gives me confidence and will go with patching mine as well
Click to expand...
Click to collapse
Thanks a bunch @235anders15 I can confirm that I used your patched magisk image file and flashed it in both slots and have root back ..yayy! Simple process

sam_htc_touch said:
Thanks a bunch @235anders15 I can confirm that I used your patched magisk image file and flashed it in both slots and have root back ..yayy! Simple process
Click to expand...
Click to collapse
Just for the benefit of all (if it matters), noticed that Magisk wasn't passing the Safety Net check and was showing failed for all 3. Used this fix and all is well now (Used the Sept 13 update on the page)

previously patching with stable 11.1.1.1 and broke some major functionality (eg: wifi crash, mess up video player and codec), now try to patch with magisk version, will update later

abhi0039 said:
I found a workaround. Firstly go to fastboot mode and flash stable.img from here https://forum.xda-developers.com/t/...os11-open-beta-2-3-and-stable-latest.4316563/ and boot into recovery. Now download TWRP and magisk and transfer to internal storage. Now flash TWRP and then download full OTA from here And put in storage https://www.xda-developers.com/oneplus-6-6t-oxygenos-11-1-1-1/
and flash it. Don't reboot once it says done. Go back and re install twrp.zip. Now reboot. Go to recovery and install magisk and clear dalvik. Now reboot and enjoy.
Thanks to
KizuYuna and Skanda Hazarika for providing stable.img and OTA respectively.​
Click to expand...
Click to collapse
stable.img from there (and the other ones) dont fastboot boot on my OSS 1.1.1.1 fastboot mode.

I followed 235anders15 post and flashed both a and b slots, but it ended with endless boot logo (red dot with spinning white dot).
I can't go to fastboot mode, nothing.... please help!

F5:ed said:
I followed 235anders15 post and flashed both a and b slots, but it ended with endless boot logo (red dot with spinning white dot).
I can't go to fastboot mode, nothing.... please help!
Click to expand...
Click to collapse
Press and hold vol up, down , power at the same time for a while it will boot to fastboot.

I got boot loop after updating to 11.1.2.2
Any new boot img?

izik.avi said:
I got boot loop after updating to 11.1.2.2
Any new boot img?
Click to expand...
Click to collapse
Haven't tested yet but here you go

rippledrums said:
Haven't tested yet but here you go
Click to expand...
Click to collapse
This one works great. Thank you.

The attached file in #13 above worked, thank you!
In case someone would like to now "How to do it" until next time this is how I did it:
How to install OOS update and root via created patch.img file in the Magisk app
1. Download the full version eg the OOS 11.x.x.x.zip file on the computer, and copy the file to the phone's internal memory as well.
2. Run the payload_dump program (https://androidfilehost.com/?fid=1899786940962605222) to extract a boot.img from the computer. You have to extract the payload.bin file from the OOS 11.x.x.x.zip file and place it in the Input folder, then run the exe-file and wait for payload to complete, then copy over the boot.img file found in the Output folder to the phone.
3. Go to Magisk app on the phone, click on the top install "Magisk", click "Select and patch a file", search for the boot.img file you created.
4. Now, Magisk will create a patched magic.img file from the boot.img file (can be called eg magic_patched-23000_xt8QR.img)
5. Copy the magisk_patched-xxxxxxx.img to your computer's "Root folder" where you have stored ADB files, etc
6. Now install the OOS 11.x.x.x zip file (should be in the mobile's Internal memory) via Settings> System> System updates and the "gear"> Local upgrade
7. When done, DO NOT reboot but go directly to Fastboot mode + connect cable to the computer
8. On the computer, type from your "Root folder":
fastboot flash boot magisk_patched-xxxxxxx.img
9. Reboot the phone - you are rooted!

rippledrums said:
Haven't tested yet but here you go
Click to expand...
Click to collapse
Is this magiskpatched.img for oneplus 6t?? Can I flash this in fastboot mode to root my oneplus 6t?

raymund08 said:
Is this magiskpatched.img for oneplus 6t?? Can I flash this in fastboot mode to root my oneplus 6t?
Click to expand...
Click to collapse
Yes

rippledrums said:
Yes
Click to expand...
Click to collapse
Thank you

Can confirm OP fastboot commands and patched boot img are working for 11.1.1.1.​​I uninstalled magisk by mistake and could regain root, quick and painless​

Can anyone help me? flashed patched boot to A and B Slot. But Magisk is N/A. Any idea?

Question root failed and bootloop

I got a china version OnePlus 10 Pro
i was flashed in oxygen OS A12 EU
I extract the boot.img (52M) from payload.bin today and use magisk cancy to patch
and then i try to fastboot flash boot boot_patched.img
and now start bootloop on one plus splash screen
I can still go to fastboot and fastbootD , I can still flash the payload again but still bootloop
anyone have idea what can i fo to fix ? thanks

leofung_wai said:
I got a china version OnePlus 10 Pro
i was flashed in oxygen OS A12 EU
I extract the boot.img (52M) from payload.bin today and use magisk cancy to patch
and then i try to fastboot flash boot boot_patched.img
and now start bootloop on one plus splash screen
I can still go to fastboot and fastbootD , I can still flash the payload again but still bootloop
anyone have idea what can i fo to fix ? thanks
Click to expand...
Click to collapse
Hey,
If you've only booted the image, then you only need to reboot and the image is lost, the only way that it would be permanent is if it was flashed: fastboot flash not: fastboot boot.
Usually what happens is when you obtain a firmware to install or in your case change region, and you wish to root this firmware you would extract payload.bin then use fastboot enhance to extract the boot.img
Then copy to your phone and patch it with the latest stable Magisk (in this case 24.3)
So again, if you've only booted the image then just reboot your phone and it'll turn on using the actual flashed boot.img from the firmware, not the one you booted.
If that doesn't work then you must have flashed it. In which case you can either re-flash your original boot.img or boot then direct install a correctly patched image for the correct firmware (after a success boot) via Magisk.

leofung_wai said:
I got a china version OnePlus 10 Pro
i was flashed in oxygen OS A12 EU
I extract the boot.img (52M) from payload.bin today and use magisk cancy to patch
and then i try to fastboot flash boot boot_patched.img
and now start bootloop on one plus splash screen
I can still go to fastboot and fastbootD , I can still flash the payload again but still bootloop
anyone have idea what can i fo to fix ? thanks
Click to expand...
Click to collapse
Here's a good "how to" to follow.
https://www.droidwin.com/how-to-root-oneplus-10-pro-via-magisk-patched-boot-img/

Canuck Knarf said:
Here's a good how to to follow.
https://www.droidwin.com/how-to-root-oneplus-10-pro-via-magisk-patched-boot-img/
Click to expand...
Click to collapse
No he has changed region. This is for color OS...he's already done all this.
If you read the OP, he's already on EU 11_A.12
This would just make matters much worse

dladz said:
No he has changed region. This is for color OS...he's already done all this.
If you read the OP, he's already on EU 11_A.12
This would just make matters much worse
Click to expand...
Click to collapse
what you talking about ...it applies to all ...if hes on colors os....oxgyen os..he stills needs ...boot img...vender_boot...and vbmeta. img and magisk

Canuck Knarf said:
what you talking about ...it applies to all ...if hes on colors os....oxgyen os..he stills needs ...boot img...vender_boot...and vbmeta. img and magisk
Click to expand...
Click to collapse
Are you suggesting that the boot.img in color OS is the same as it is in OOS?
You're mistaken if you do think that
They're completely different operating systems, have different system.img's boot.img's, in fact most if not all images are different, to suggest he should obtain a firmware that he's just changed FROM is a bad suggestion..
That's what I'm talking about.
As per the OP, he has changed region, he is no longer using color OS ( the site you suggested is referring to this firmware)
He is now on oxygen OS using the firmware EU 11_A.12
If he was to attempt to use a color OS boot image his phone would continue to be in a boot loop but for a different reason.
Again, this would make things much much worse.
If what he's advised is true then he's successfully changed OS/region and now wants to root, the only thing he's done thus far is to boot a boot image. I think he's flashed it as booting is not permanent, to suggest to go ahead and attempt to obtain a color OS boot image or vendor image is absolutely ridiculous.
He's on an EU firmware. So he requires an EU boot image.

He's in boot loop cause he is booting to A slot...

Thanks for everyone's reply i did change the boot to A and reflash everyone again it can boot now but when i try to root again , it stuck into fastboot mode

dladz said:
Are you suggesting that the boot.img in color OS is the same as it is in OOS?
You're mistaken if you do think that
They're completely different operating systems, have different system.img's boot.img's, in fact most if not all images are different, to suggest he should obtain a firmware that he's just changed FROM is a bad suggestion..
That's what I'm talking about.
As per the OP, he has changed region, he is no longer using color OS ( the site you suggested is referring to this firmware)
He is now on oxygen OS using the firmware EU 11_A.12
If he was to attempt to use a color OS boot image his phone would continue to be in a boot loop but for a different reason.
Again, this would make things much much worse.
Click to expand...
Click to collapse
oxygen OS using the firmware EU 11_A.12.... He still needs boot img ...vender_boot form the firmware EU 11_A.12 . to root

leofung_wai said:
Thanks for everyone's reply i did change the boot to A and reflash everyone again it can boot now but when i try to root again , it stuck into fastboot mode
Click to expand...
Click to collapse
you need to load the firmware EU 11_A.12 to b slot using fastboot enhance

He already had boot?? What are you talking about???
He had a functional OS, in order to root you only need ONE image.
The boot image which comes from OOS. The link you sent is for Color OS?? Make sense now ??
He just needs to patch it correctly and boot it then direct install.
Im going over this again with someone who's incapable of understanding the basics.

Canuck Knarf said:
you need to load the firmware EU 11_A.12 to b slot using fastboot enhance
Click to expand...
Click to collapse
You do realise that booting an image does not need to be directed don't you?
Only by flashing should you direct the image to a particular slot.
By flashing you are permanently flashing an image.
I don't think you understand this so I'll make it simple for you.
You want to root your phone. You have an image you've just patched, from boot.img to magisk_patched.img
Firstly you would want to send this via fastboot, you do not need fastboot enhance for this.
The preferred way to do this is to fastboot boot magisk_patched.img
Why is this preferred??
Because if it fails as it may. Then you are not stuck in a boot loop, you just reboot and you're back in the OS.
The 2nd method is flashing.
fastboot flash boot_a magisk_patched
Press enter.
fastboot flash boot_b magisk_patched
Press enter
fastboot reboot
Press enter.
Now although this can work it is not the preferred method because you aren't just booting the image you are flashing it, this means that if it fails you cannot just reboot and get back to the OS you have to either obtain a new boot image and patch it although you cannot do this yourself as your phone no longer boots or you obtain an already patched boot image, again the last one I wouldn't recommend..

Thanks again but i had a question , i tried to flash or boot a patched boot img , now i can boot and get into system...but still not root

leofung_wai said:
Thanks again but i had a question , i tried to flash or boot a patched boot img , now i can boot and get into system...but still not root
Click to expand...
Click to collapse
Ok so if you've got into the system..
You need to follow the instructions I have in my guide in order to get root...
You can use the boot image I have there.

leofung_wai said:
Thanks again but i had a question , i tried to flash or boot a patched boot img , now i can boot and get into system...but still not root
Click to expand...
Click to collapse
It is always better to patch boot.img of your own version (you can dump it from payload dumper etc.) and then only fastboot boot patched_image.img and then directly install it via Magisk.

Boot this image.
192 MB folder on MEGA
mega.nz

Yes i did dump from my own and patched by magisk cancy , but it still ...get in normally

Do not flash it.
If your phone boots to the OS, then open Magisk and click install. Direct install and you're done

leofung_wai said:
Yes i did dump from my own and patched by magisk cancy , but it still ...get in normally
Click to expand...
Click to collapse
If you've patched your own image and booted it then click Magisk then install. Then direct install and you're done..

dladz said:
Do not flash it.
If your phone boots to the OS, then open Magisk and click install. Direct install and you're done
Click to expand...
Click to collapse
thanks i success root by your image now
but i had a question, i messed up the slot B and now can only boot through slot A Will it affect anything