Develop Bugs

Updated TWRP, now system only boots back into TWRP

I updated TWRP in TWRP via zip flashing and now whenever I try to reboot my phone, it only boots back into TWRP.
Previously, I was unlocked bootloader and rooted on stock.
Would appreciate any help. Thanks

I've never installed TWRP on this phone, but here is one thread Google returns that seems to be similar.
https://forum.xda-developers.com/pixel-xl/how-to/twrp-bootloop-flashing-twrp-t3533765
One relevant thing that has changed since the time of that discussion is that the May and newer bootloaders require a signed boot image. When I installed the May update with SuperSU without signing the boot image my phone simply ended up switching to the other slot, but again I didn't have TWRP installed. There is a zip for signing the boot image and further discussion here.
https://forum.xda-developers.com/an...signing-boot-images-android-verified-t3600606

Thanks for the response. Looks like I have to flash factory image and then the verified boot signer. I'll give it a shot and report back.
Fixed this rather easily using the June factory images. Flashed using flash-all.bat (and removed the -w) and things are updated and back to square one. Interestingly, I didn't need to sign the boot image.
Thanks for the help.

facted;72562818 Interestingly said:
You don't need to sign unless you root or flash a custom kernel that isnt signed.
Click to expand...
Click to collapse

TonikJDK said:
facted;72562818 Interestingly said:
You don't need to sign unless you root or flash a custom kernel that isnt signed.
Click to expand...
Click to collapse
Do you need to use the signed boot image file if you are flashing an unrooted custom Rom? I thought you needed to use it when flashing anything that changed the boot image from stock, including flashing TWRP if it's going to be installed on the phone.
Actually now that I thought about it the signed boot image is SuperSu specific, isn't it?
Click to expand...
Click to collapse

My understanding is that at the last step before restarting the phone the boot image needs to be signed, if the bootloader has been updated to May or later. The stock image is signed, and I've read that ElementalX will also sign the boot image. If you install anything else at this time, such as TWRP or SuperSU or Magisk, then I think as the last step it's necessary to also sign the image. Now that you've updated the bootloader, my understanding is that you will need to sign the boot image if you install TWRP again.

alluringreality said:
My understanding is that at the last step before restarting the phone the boot image needs to be signed, if the bootloader has been updated to May or later. The stock image is signed, and I've read that ElementalX will also sign the boot image. If you install anything else at this time, such as TWRP or SuperSU or Magisk, then I think as the last step it's necessary to also sign the image. Now that you've updated the bootloader, my understanding is that you will need to sign the boot image if you install TWRP again.
Click to expand...
Click to collapse
yeah i am stock rooted with twrp on june 7.1.2. I had to flash the verifiedbootsigner-v8 when rooting with magisk and twrp. I did NOT have to flash it when flashing elementaX 1.12

We're can I download v8?
Sent from my Pixel XL using Tapatalk

The first post from the following link has the latest version of the Verified Boot Signer attached.
https://forum.xda-developers.com/an...signing-boot-images-android-verified-t3600606

335Deezl said:
We're can I download v8?
Sent from my Pixel XL using Tapatalk
Click to expand...
Click to collapse
https://forum.xda-developers.com/pixel-xl/how-to/guide-stock-7-1-2-root-safetynet-ok-t3617347

So, I just ran into this issue with my Pixel 2 XL when I tried to update my TWRP version from 3.2.1-2 to 3.2.3-0. Here's how it went:
1. Downloaded the TWRP zip, md5 and so on from the official TWRP website for the Pixel 2 XL
2. Booted to TWRP and installed / flashed the zip of TWRP 3.2.3-0
3. Wiped dalvik and then chose Reboot to System from TWRP -- the phone booted right back into TWRP
4. Tried again to reboot the same way. Same result.
5. Installed / Flashed the 3.2.1-2 TWRP zip which was still on my phone, in order to revert to the previous version, and then Rebooted to System -- same result
6. Flashed 3.2.3-0 zip again, then flashed the Flash Kernel that I've been using, and then Flashed the Magisk v16.0 zip that I used to root, then chose Reboot to System -- AND IT WORKED; the phone booted normally and now I'm updated to the latest TWRP successfully.
tl;dr - The solution is to flash Magisk again after updating TWRP. Pretty sure this goes for kernel updates too.

cognitivedissonance said:
So, I just ran into this issue with my Pixel 2 XL when I tried to update my TWRP version from 3.2.1-2 to 3.2.3-0. Here's how it went:
1. Downloaded the TWRP zip, md5 and so on from the official TWRP website for the Pixel 2 XL
2. Booted to TWRP and installed / flashed the zip of TWRP 3.2.3-0
3. Wiped dalvik and then chose Reboot to System from TWRP -- the phone booted right back into TWRP
4. Tried again to reboot the same way. Same result.
5. Installed / Flashed the 3.2.1-2 TWRP zip which was still on my phone, in order to revert to the previous version, and then Rebooted to System -- same result
6. Flashed 3.2.3-0 zip again, then flashed the Flash Kernel that I've been using, and then Flashed the Magisk v16.0 zip that I used to root, then chose Reboot to System -- AND IT WORKED; the phone booted normally and now I'm updated to the latest TWRP successfully.
tl;dr - The solution is to flash Magisk again after updating TWRP. Pretty sure this goes for kernel updates too.
Click to expand...
Click to collapse
This is Pixel XL forum.

Slowclap

Phalanx7621 said:
Slowclap
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Bootloop after flashing patched_boot.img

It gets stuck on the white screen with the letter G and moving progress bar under it after rebooting. I ended up just flashing the stock boot.img and it works again but just rootless for now.
I successfully rooted with Magisk a few days ago but after getting a bootloop from trying to install Xposed I restored to 8.0 stock. I probably should've made a backup of the patched_boot.img from back then When I try making patched_boot.img again with Magisk it is only ~26 mb but the factory boot.img is ~41 mb. I don't remember exactly how big my first patched one was, but I feel like it shouldn't be this small.

potatoesryum said:
It gets stuck on the white screen with the letter G and moving progress bar under it after rebooting. I ended up just flashing the stock boot.img and it works again but just rootless for now.
I successfully rooted with Magisk a few days ago but after getting a bootloop from trying to install Xposed I restored to 8.0 stock. I probably should've made a backup of the patched_boot.img from back then When I try making patched_boot.img again with Magisk it is only ~26 mb but the factory boot.img is ~41 mb. I don't remember exactly how big my first patched one was, but I feel like it shouldn't be this small.
Click to expand...
Click to collapse
Have you tried flashing the Magisk.zip instead? I had some troubles myself recently but flashing the Magisk zip worked like a charm. You don't need to flash TWRP recovery, you can just one-time boot to TWRP and flash the Magisk zip that way.
EDIT:
To do so, I'm taking snippets from THIS post, but basically:
Download TWRP.img, place in platform-tools folder.
Download Latest Magisk v14.x Zip file, place on device "SDCard"
Reboot phone to bootloader/fastboot
Command: fastboot boot <twrp filename.img>
Once TWRP loads, flash the Magisk Zip file you downloaded and reboot your phone, you should be all set.

Tried flashing Magisk 14.4 and the most recent 15.3 with twrp but still stuck at same boot up screen. If it matters I'm running 8.0 with November update (opd1.170816.025). I'll probably do a clean install of 8.1 later and try again, just waiting for a few apps get updates for 8.1

potatoesryum said:
Tried flashing Magisk 14.4 and the most recent 15.3 with twrp but still stuck at same boot up screen. If it matters I'm running 8.0 with November update (opd1.170816.025). I'll probably do a clean install of 8.1 later and try again, just waiting for a few apps get updates for 8.1
Click to expand...
Click to collapse
Just to be clear, you are telling Magisk to patch the November BOOT.IMG, correct?
You could also try dirty flashing the January full ROM (remove the -w from the flashall script), then flashing Magisk via TWRP...

How to update from Magisk rooted 8.1.0 to 9.0 and then root with Magisk again?

I did some searching, but could not see a guide for moving from Magisk rooted 8.1.0 to Magisk rooted 9.0. I believe I need to uninstall Magisk, then install the update, but not sure of the exact process. Also, is it better to wipe the data when going from 8.1.0 to 9.0 or doesn't matter?
Thanks in advance!

There's two ways you can do this.
One, you can sideload the OTA using ADB (if on stock recovery), or you can flash the OTA through TWRP.
Two, you can download the factory image, and manually flash the bootloader and radio, then update /system WITHOUT the -w flag, if you don't want to wipe data.
Any time you flash a software update, whether it's the OTA or the factory image, it WILL overwrite /boot, so you will lose Magisk and any custom kernel and recovery. Simply boot TWRP using fastboot, flash Magisk (and TWRP and kernel if desired), and you'll be good to go.

No need to wipe data. My process for installing OTAs and re-rooting has always been the same and it's no different with the 9.0 update other than one exception I encountered (patching the boot image AFTER updating).
I prefer the boot image patching method:
Download the latest platform-tools from Google
Download both the OTA and full factory images
Extract boot.img from the factory image
If already rooted prior to updating, re-flash current stock boot image
Sideload OTA
Patch the extracted boot image with Magisk (make sure you're on the latest version; 16.7 beta channel)
Flash patched boot image
Normally I patch the boot image prior to sideloading the OTA but it resulted in an endless boot after the 9.0 update.

Thanks guys. I actually found a thread I bookmarked previously on this topic. Do you think this would work well still? :
https://forum.xda-developers.com/pixel-2-xl/how-to/guide-how-to-install-google-software-t3760535
Also I saw some people mentioning trouble with Magisk after 9.0 update. Did you encounter that or anything special to consider there?

machx1111 said:
Thanks guys. I actually found a thread I bookmarked previously on this topic. Do you think this would work well still? :
https://forum.xda-developers.com/pixel-2-xl/how-to/guide-how-to-install-google-software-t3760535
Also I saw some people mentioning trouble with Magisk after 9.0 update. Did you encounter that or anything special to consider there?
Click to expand...
Click to collapse
Here's a bit more specific guide for updating to 9.0
https://forum.xda-developers.com/pi...de-reference-8x-oreo-to-t3826330/post77269862

Rooting December Patch causes fake corruption

I updated to the December patch, all went well and as expected on reboot I was unrooted and back to the stock kernel (from elemental x) having the foresight for this I had previously downloaded the December firmware, used magisk to patch it and copied it to my computer.
So currently I can boot standard, when I try to 'fastboot boot' the patched image it boots then shows a block on screen that shows "shutting down" then reboots to a recovery prompt saying my android system is corrupt giving two options to try again or factory reset, try again works as its booting the stock boot at that point.
From there i decided to try the twrp method to see if it makes a difference, it did not and left me in a continued boot to "shutting down" cycle until i restored the stock firmware (without -w)
Interestingly I can flash elemental x through twrp and the system will boot though still without root.
anyone else having this issue or know of a fix I am over looking?
Thanks in advanced.

You can not do the patched boot. Img on dec build. Boot twrp, flash magisk, profit. Or boot twrp, flash twrp, flash magisk and custom kernel. Im on dec and had no issues. If you dont flash custom kernel after twrp, you'll have no touch response in twrp with stock kernel

Hmm.. I tried that, Nothing better to do so I'll try again, I have and will attempt again the magisk beta, if you see this and recommend the stable, let me know. Thanks!
**EDIT**
I tried both, from fastbooting twrp I flashed the beta, it did the "shutting down" loop, I did a 'flash-all' then repeated the process with stable, same issue. It seem I am the odd man out and may need to perform an actual wipe and see if it resolves.

JaceAlvejetti said:
Hmm.. I tried that, Nothing better to do so I'll try again, I have and will attempt again the magisk beta, if you see this and recommend the stable, let me know. Thanks!
**EDIT**
I tried both, from fastbooting twrp I flashed the beta, it did the "shutting down" loop, I did a 'flash-all' then repeated the process with stable, same issue. It seem I am the odd man out and may need to perform an actual wipe and see if it resolves.
Click to expand...
Click to collapse
@JaceAlvejetti
Pixel 3/Pixel 3 XL
- fastboot flash boot --slot all boot.img (from December factory image)
- fastboot boot twrp-3.2.3-1...img
- install Magisk' uninstaller
- add more zips
- ElementalX 1.02.zip
- Add more zips
- magisk-17.3.zip
- reboot system

That worked, Is there any logic I would follow as to why?, either way I really appreciate it!

Homeboy76 said:
@JaceAlvejetti
Pixel 3/Pixel 3 XL
- fastboot flash boot --slot all boot.img (from December factory image)
- fastboot boot twrp-3.2.3-1...img
- install Magisk' uninstaller
- add more zips
- ElementalX 1.02.zip
- Add more zips
- magisk-17.3.zip
- reboot system
Click to expand...
Click to collapse
Glad to hear this works, but why is everyone using TWRP 3.2.3-1 and not 3.2.3-2??

State.of.mind said:
Glad to hear this works, but why is everyone using TWRP 3.2.3-1 and not 3.2.3-2??
Click to expand...
Click to collapse
Probably because the title of the recovery thread has not been updated lol
Sent from my crosshatch using XDA Labs

Question Can't Root After May Update?

I was rooted with Magisk on the April build and attempted to update to May. So I used Magisk to uninstall, accepted the OTA, then used Magisk to reinstall (before rebooting) but I got an error about the phone being corrupt,. So I've spent the past several hours flashing the stock boot image to both boot slots, creating new Magisk patched images, flashing those to both boot slots, rebooting, and flashing stock boot images again to both boot slots. I've done every combination of flashing stock to one boot slot and patched to another, patched to both slots, and now stock to both slots. Any time I try to boot a patched boot image the phone reboots a few times and finally tells me it's corrupt and asks to reset it (which I haven't done and prefer not to do).
I can confirm that I'm on the May update and that I'm using the May boot image in my attempts to root again. At this point, I've wiped the Magisk app (thinking a module could be causing the issue when I root) and I'm back on the stock boot image and the phone seems to be working fine, just without root.
I feel like I'm missing something simple. Can someone point me in the right direction?

I stopped to update ROM with this method since march because i had always a bootloop.
Now i install the update by android flash tool and flash boot patched with fastboot command.
You could do it. I hope Twrp wil be released quickly.

Vincent_40 said:
I stopped to update ROM with this method since march because i had always a bootloop.
Now i install the update by android flash tool and flash boot patched with fastboot command.
You could do it. I hope Twrp wil be released quickly.
Click to expand...
Click to collapse
I successfully updated to May and I've flashed the patched boot image in fastboot at least a dozen times (stock to patched, different partitions, patched to stock). The phone won't boot whenever I flash the patched image. It just bootloops and eventually gives me an error about being corrupt and asks if I want to factory reset.

Flash your patched image, then boot to safe mode, then reboot. It should work. I had the same issue and it ended up being something I had in Magisk, even though I had everything disabled. I ended up uninstalling everything in Magisk, and reinstalling.

shiftr182 said:
Flash your patched image, then boot to safe mode, then reboot. It should work. I had the same issue and it ended up being something I had in Magisk, even though I had everything disabled. I ended up uninstalling everything in Magisk, and reinstalling.
Click to expand...
Click to collapse
And if this doesn't work you might have to wipe your phone and re-flash the appropriate build. I remember seeing posts in the past with users discussing a wipe and re-flash resolving the "phone is corrupt" issue.

shiftr182 said:
Flash your patched image, then boot to safe mode, then reboot. It should work. I had the same issue and it ended up being something I had in Magisk, even though I had everything disabled. I ended up uninstalling everything in Magisk, and reinstalling.
Click to expand...
Click to collapse
I wiped data in Magisk since I can't access the modules to disable them right now (no root) and I also wiped data in Rice Tweaks since it was one of the mods I was using. I'll try this tonight and see if it works.

joshw0000 said:
I wiped data in Magisk since I can't access the modules to disable them right now (no root) and I also wiped data in Rice Tweaks since it was one of the mods I was using. I'll try this tonight and see if it works.
Click to expand...
Click to collapse
Before you wipe everything try this:
** ALSO: booting into safe mode automatically disables all Magisk modules **
How I root and update (which is identical whether rooting the first time or updating):
Use the latest Magisk Stable (in my case, I keep the app "hidden" / renamed)
Used the full firmware zip, extracted to the same folder as the latest Platform Tools (S:\platform-tools)
Extracted the new boot.img
Copied new boot.img to the phone
Patched the new boot.img with Magisk Stable
Renamed Magisk'd boot.img so I know what version of firmware it's for
Copied the Magisk'd boot.img back to the computer
Disabled all my Magisk Modules
Removed the "-w " from the flash-all.bat
Re-edited the flash-all.bat to verify I saved it with the "-w " taken out
Open a Command Prompt, navigated to S:\platform-tools
adb reboot bootloader
flash-all.bat
Let phone boot, unlock it, check that it's working, allow the update process to finish (gave it five minutes or so)
adb reboot bootloader
fastboot flash boot kernel.img (renamed Magisk'd boot.img)
fastboot reboot
Unlock, check everything's working
Re-enabled the most basic Magisk Modules which I was sure wouldn't cause a critical issue
Reboot, unlock, made sure everything's working
Back to modding!
Click to expand...
Click to collapse
From here:
https://forum.xda-developers.com/t/...central-repository-of-relevant-links.4352027/

biTToe said:
Before you wipe everything try this:
** ALSO: booting into safe mode automatically disables all Magisk modules **
How I root and update (which is identical whether rooting the first time or updating):
From here:
https://forum.xda-developers.com/t/...central-repository-of-relevant-links.4352027/
Click to expand...
Click to collapse
Thanks. Do you know if I can run the flash-all.bat if I'm already on the current update? I have the full firmware on my PC (so I could get the boot image).
It sounds like booting to safe mode is the one thing I haven't tried.
When I updated last night I tried to disable Magisk from within the app but Magisk didn't have a backup (because I had rooted on the April build from fastboot) so I flashed the factory April boot.img, then fastboot boot magisk-boot.img, then allowed Magisk to root my phone. Then disabled all the modules, unrooted with Magisk, accepted the OTA which took unusually long to install (2+ hours), then used Magisk to restore root but I think I forgot to tell it to do the inactive partition which may have cause all of my issues. When I rebooted it gave me the corrupt error.
From there I spent a bunch of time fastboot flashing and fastboot booting the stock and modified May boot images. I've got about 4 copies of the modified boot image where I kept recreating it hoping it'd work again.
Tonight I'll try to flash the modified boot.img and boot directly into safe mode to see if I can get it to load. I may also try wiping cache in recovery to see if that helps.

joshw0000 said:
Thanks. Do you know if I can run the flash-all.bat if I'm already on the current update? I have the full firmware on my PC (so I could get the boot image).
Click to expand...
Click to collapse
YES you can.
Just make sure to edit the flash-all.bat and remove -w
otherwise you WILL wipe.
THEN... after you save the edited flash-all.bat, edit it again to make sure the -w is in fact not there.
Ive been where you are before. I forgot to disable a mod and boot-looped.
I booted to safe mode then re-flashed with flash-all, patched the boot.img and flashed that via Magisk and I was golden.
I always use this method. I even went from 12-beta to 12.1 w/o so much as a hiccup.
OTA can be problematic (or has been for me in the past). this is simple, quick, and works every time.
My suggestion is to start from scratch: delete all those previously used/attempted files -especially the patched image.
d/l the new factory image, extract/patch that boot.img This way you know everything is from the same place.
cheers

Thanks guys for all the help. Safe Mode is going to work for me. I was able to root, boot to safe mode, and reboot normal. I'm slowly enabling modules until it errors again and I've found that Renovate Ice was the culprit. But whenever it errors, I can just boot to safe mode, reboot, and start fresh with modules. Thanks!