Develop Bugs

NEED HELP

I have a brand new Pixel XL from Verizon that I received today and was successful in unlocking. However, I tried to root and now I am stuck on bootloop. I cannot post in DEVELOPMENT because I haven't posted here in years (haven't had ANDROID in a while). Can anyone help? I am able to access via fastboot (I believe) but I must be flashing the wrong images. I don't want to brick this nice new day-old device. I have been at it for 5 hours via research on my own, but now I am looking for someone that can help me via P.M. or what it may take. I really want to get back to enjoying this device! Thanks in advance!

bdsuser said:
I have a brand new Pixel XL from Verizon that I received today and was successful in unlocking. However, I tried to root and now I am stuck on bootloop. I cannot post in DEVELOPMENT because I haven't posted here in years (haven't had ANDROID in a while). Can anyone help? I am able to access via fastboot (I believe) but I must be flashing the wrong images. I don't want to brick this nice new day-old device. I have been at it for 5 hours via research on my own, but now I am looking for someone that can help me via P.M. or what it may take. I really want to get back to enjoying this device! Thanks in advance!
Click to expand...
Click to collapse
Read the third post in the thread below to get set up and back to stock. Then we will work on root. If you tried to root and you bootlooped it then you used the wrong​ SU.
https://forum.xda-developers.com/pixel/help/stupidly-bootloop-help-t3554242

1. Download a ROM. A stock version is probably in the forums somewhere if that's what you want.
2. Download TWRP image and zip from the TWRP thread.
3. Download SuperSU from the SuperSU thread.
4. Download a vendor image. There's no "official" vendor image thread AFAIK, but you can grab one from the Pure Nexus rom thread. NMF26V is compatible with all 7.1.1 ROMs & stock.
Now you have two options:
Fast: Put the ROM, TWRP(zip only), SuperSU and vendor image on USB flash drive, then connect the USB 3 to USB C adapter to your flash drive. Don't connect it to the phone yet. An external HDD/SSD should also work if that's all you've got.
Slow: While in TWRP(Instructions below) push the ROM, TWRP(zip only), SuperSU and vendor image files to your phone through ADB with "adb push C:\file_path\ /sdcard/" sans quotes. You will need to do this for each file, or alternatively push a folder containing the four files. adb file transfer is very slow.
5. Boot your phone to the bootloader, and connect it to your computer. This can be achieved by holding volume down and power from an off state.
Note: If your device is still bootlooping you won't be able to get to the bootloader. Hold volume up and power until the device shuts off to get out of the bootloop temporarily, then boot to bootloader.
6. In a command window, "fastboot boot twrp.img"
7. Connect your flash drive to your phone if you chose that option, or push the files through adb if you chose that option
8. Flash TWRP zip, ROM and vendor image. STAY IN TWRP
9. Return to TWRP's home screen > advanced > file manager. Scroll down until you see 'fstab.marlin'(in the root '/' directory). Tap on 'fstab.marlin' and delete it. Skipping this step means SuperSU won't install.
10. Flash SuperSU zip, reboot to system and you're done.

SDK
TonikJDK said:
Read the third post in the thread below to get set up and back to stock. Then we will work on root. If you tried to root and you bootlooped it then you used the wrong​ SU.
https://forum.xda-developers.com/pixel/help/stupidly-bootloop-help-t3554242
Click to expand...
Click to collapse
Just thought I'd update you...And I know I sound like I have no idea what I'm doing but traditionally I've never had issues like this But I am trying to get ADB to show the flash-all command. The one I have installed doesn't show that feature so I can't follow the tutorial. If you have a direct link to what I may be missing I would appreciate it otherwise I will update you once I figure it out.

bdsuser said:
Just thought I'd update you...And I know I sound like I have no idea what I'm doing but traditionally I've never had issues like this But I am trying to get ADB to show the flash-all command. The one I have installed doesn't show that feature so I can't follow the tutorial. If you have a direct link to what I may be missing I would appreciate it otherwise I will update you once I figure it out.
Click to expand...
Click to collapse
The link to the proper adb and fastboot are in the post i pointed you to.

Help with root and TWRP
TonikJDK said:
The link to the proper adb and fastboot are in the post i pointed you to.
Click to expand...
Click to collapse
Thanks for your assistance. I now have root installed and I think I'm good except for one thing. I keep thinking TWRP is installed but for some reason when I reboot to bootloader, then select reboot recovery mode, it takes me to android recovery. I am used to recovery taking me to TWRP. I know TWRP works but I feel like I'm temporarily flashing it each time or something. I even installed the twrp app and I see I can flash zips that way, etc, but I wanted to know if you knew how to make the phone boot to TWRP in recovery? Or is that necessary?

bdsuser said:
Thanks for your assistance. I now have root installed and I think I'm good except for one thing. I keep thinking TWRP is installed but for some reason when I reboot to bootloader, then select reboot recovery mode, it takes me to android recovery. I am used to recovery taking me to TWRP. I know TWRP works but I feel like I'm temporarily flashing it each time or something. I even installed the twrp app and I see I can flash zips that way, etc, but I wanted to know if you knew how to make the phone boot to TWRP in recovery? Or is that necessary?
Click to expand...
Click to collapse
I dont do it that way on this phone. TWRP and SU are modifying the same parts of the phone, and there are cases where it could conflict. Rare, not a big deal, but since i don't need TWRP installed i don't.
To install it ypu first boot to it.
Fastboot boot twrpFilename.
Then from within TWRP you install the TWRP zip.
Make sure it is TWRP RC1

All set
Thanks again for your help. I am running pure ROM as I mentioned and I seem to like it. Do you K or if Franco works with Pure or do you have a suggestion on a good rom/kernel? Is there anything else that you can suggest I should be using with the new phone? I remember there used to be tools that you could install that allowed you to customize the system even further but the name escapes me. . Is there anything like that or even a theme tool which is a must have when you are rooted and running custom roms? No big deal if not. Very happy with where I stand now. Really appreciate you getting me back up and running!

You are most welcome. I don't ROM so I don't know what kernels work with what roms for sure. But my understanding is that they are all pretty universal. I run stock with Franco.
Other than that i dont mod much. Ad blocker, black themes and a few adjustments to Franco.

TonikJDK said:
You are most welcome. I don't ROM so I don't know what kernels work with what roms for sure. But my understanding is that they are all pretty universal. I run stock with Franco.
Other than that i dont mod much. Ad blocker, black themes and a few adjustments to Franco.
Click to expand...
Click to collapse
Perfect! Thanks yet again. Have a great remainder of the day!

bdsuser said:
Thanks again for your help. I am running pure ROM as I mentioned and I seem to like it. Do you K or if Franco works with Pure or do you have a suggestion on a good rom/kernel? Is there anything else that you can suggest I should be using with the new phone? I remember there used to be tools that you could install that allowed you to customize the system even further but the name escapes me. . Is there anything like that or even a theme tool which is a must have when you are rooted and running custom roms? No big deal if not. Very happy with where I stand now. Really appreciate you getting me back up and running!
Click to expand...
Click to collapse
Im running pure and elementalx with excellent results.
?Tapped from my pure pixelXl?

have you ever seen an issue where the phone boots to twrp even though everything was working fine? It starts happening if I do a restart. Then no matter what it boots into TWRP unless I wipe again? I believe it's happening after I flash root but I'm going out of my mind with trial and error. Any help would be appreciated.

bdsuser said:
have you ever seen an issue where the phone boots to twrp even though everything was working fine? It starts happening if I do a restart. Then no matter what it boots into TWRP unless I wipe again? I believe it's happening after I flash root but I'm going out of my mind with trial and error. Any help would be appreciated.
Click to expand...
Click to collapse
HELLO!!! I understand any frustrations you may be having, as the pixel devices have changed a good bit for us as far as development. Anyways. I'm just going to throw some knowledge out there, then proceed to help get you up and running!
You couldn't post in the development section because of your post count, but even if you could, it would have been in the wrong section and it would have been removed, or moved to the questions section.
Also, I see someone has pointed it out earlier, but I'll say it again just to make sure everything is clear. The command you were running "fastboot boot TWRP.img" only boots TWRP temporarily. You are suppose to have two files, one IMG file and one zip file. You boot the IMG file, then once you're in TWRP, you flash the zip file, then reboot to recovery and you will have installed TWRP properly.
With root, flashing wrong files or using the outdated root method will cause boot loops. The correct way to root (again already been said) is the get TWRP up and running, delete the fstab file (see earlier post) then flash SuperSU and reboot. Just throwing this out there Incase someone comes across it, if you manage to boot loop your device due to to rooting, you can fastboot flash franco's kernel and it will fix the bootloop (,but you won't have root) this isn't the correct way to fix it, but it will get you back up and running without downloading the large factory image.
***About to edit this post to continue giving more info***
Here is a correct guide and good template to get you running.
start by flashing a clean factory image, then let it boot and get it set up.
Reboot to fastboot, fastboot boot TWRP IMG then flash TWRP zip using the latest versions (RC1 is latest, pm me for more info).
Reboot the phone to recovery to ensure TWRP stuck.
Go-to advanced, file manager in TWRP and find the fstab.marlin file and delete.
Then you can go ahead and flash the latest SuperSU (I use 2.79 sr3) and when it's done reboot to system and verify root.
After rooting you can go ahead and flash a kernel if you want, I use elemental which you can flash in TWRP, but see the kernel instructions prior to flashing.
Reboot and you have a nice stock ROM with root and kernel.
For flashing Roms, kind of follow the same template, most Roms require you to flash part of or the whole latest factory image.
If your on a clean install, go ahead and install TWRP as mentioned above.
Then use TWRP to install whatever ROM you want per ROM developer instructions.
Side note, some Roms replace the TWRP with cwm or stock recovery, so it's always nice to flash the TWRP zip after flashing a ROM.
After flashing ROM, boot to system to make sure all is well, then boot back to recovery and follow instructions above for root/kernel.
As far as the problem you're having now, it usually comes from flashing outdated SuperSU images. Do a search for 2.79 sr3 and use it to root (pm me if you need help)
You might have to start clean one more time, And flash factory image.

noidea24 said:
HELLO!!! I understand any frustrations you may be having, as the pixel devices have changed a good bit for us as far as development. Anyways. I'm just going to throw some knowledge out there, then proceed to help get you up and running!
You couldn't post in the development section because of your post count, but even if you could, it would have been in the wrong section and it would have been removed, or moved to the questions section.
Also, I see someone has pointed it out earlier, but I'll say it again just to make sure everything is clear. The command you were running "fastboot boot TWRP.img" only boots TWRP temporarily. You are suppose to have two files, one IMG file and one zip file. You boot the IMG file, then once you're in TWRP, you flash the zip file, then reboot to recovery and you will have installed TWRP properly.
With root, flashing wrong files or using the outdated root method will cause boot loops. The correct way to root (again already been said) is the get TWRP up and running, delete the fstab file (see earlier post) then flash SuperSU and reboot. Just throwing this out there Incase someone comes across it, if you manage to boot loop your device due to to rooting, you can fastboot flash franco's kernel and it will fix the bootloop (,but you won't have root) this isn't the correct way to fix it, but it will get you back up and running without downloading the large factory image.
***About to edit this post to continue giving more info***
Here is a correct guide and good template to get you running.
start by flashing a clean factory image, then let it boot and get it set up.
Reboot to fastboot, fastboot boot TWRP IMG then flash TWRP zip using the latest versions (RC1 is latest, pm me for more info).
Reboot the phone to recovery to ensure TWRP stuck.
Go-to advanced, file manager in TWRP and find the fstab.marlin file and delete.
Then you can go ahead and flash the latest SuperSU (I use 2.79 sr3) and when it's done reboot to system and verify root.
After rooting you can go ahead and flash a kernel if you want, I use elemental which you can flash in TWRP, but see the kernel instructions prior to flashing.
Reboot and you have a nice stock ROM with root and kernel.
For flashing Roms, kind of follow the same template, most Roms require you to flash part of or the whole latest factory image.
If your on a clean install, go ahead and install TWRP as mentioned above.
Then use TWRP to install whatever ROM you want per ROM developer instructions.
Side note, some Roms replace the TWRP with cwm or stock recovery, so it's always nice to flash the TWRP zip after flashing a ROM.
After flashing ROM, boot to system to make sure all is well, then boot back to recovery and follow instructions above for root/kernel.
As far as the problem you're having now, it usually comes from flashing outdated SuperSU images. Do a search for 2.79 sr3 and use it to root (pm me if you need help)
You might have to start clean one more time, And flash factory image.
Click to expand...
Click to collapse
There is absolutely no need to delete the fstab file anymore. That only needed to be done when TWRP was still alpha 2, and almost three versions of su earlier.
ALL roms replace TWRP with stock recovery unless you are using lineage then you will get Cyanogenmod recovery, so reflashing TWRP before booting into system is a must.
If you are flashing root and or custome kernel and end up in a bootloop, flashing the stock boot.img to both slots via:
'fastboot flash --slot _a boot boot.img'
'fastboot flash --slot _b boot boot.Img'
will fix the issue and you will be able to boot up just fine. Again you will have to reboot into TWRP from the bootloader and reflash the zip. When you are done flashing the boot.img's you might as well just
'Fastboot boot TWRP-file.img'
Then install the zip!

Phone keeps rebooting into twrp (3.2.1 official)

I've updated to the latest 3.2.1 twrp for our devices and it keeps rebooting into twrp even though i tell it to reboot to system. I've also updated to magisk 14.6

equlizer said:
I've updated to the latest 3.2.1 twrp for our devices and it keeps rebooting into twrp even though i tell it to reboot to system. I've also updated to magisk 14.6
Click to expand...
Click to collapse
Did you.....
Fastboot the stock boot.img
Then fastboot the new twrp.img
Then flash the new twrp.zip
Then custom kernel (optional)
Then flash magisk.zip?????

doh! lemme try that
EDIT: Fixed! so you have to do these steps each time you want to update twrp?

equlizer said:
doh! lemme try that
EDIT: Fixed! so you have to do these steps each time you want to update twrp?
Click to expand...
Click to collapse
I skipped the first 2 steps when upgrading and just rebooted into current twrp flashed new twrp, kernel and magisk. Profit

Dielahn said:
I skipped the first 2 steps when upgrading and just rebooted into current twrp flashed new twrp, kernel and magisk. Profit
Click to expand...
Click to collapse
That's what i normally do to but something else happened along the way. Oh well, it's fixed now

equlizer said:
doh! lemme try that
EDIT: Fixed! so you have to do these steps each time you want to update twrp?
Click to expand...
Click to collapse
I don't necessarily know if you need to this procedure every time. However, given the fact that recovery now resides in the boot.img, I just think it's a little more prudent to start with stock kernel/recovery before trying to modify it. :good:

Tried to root Pixel XL 2 and it keeps rebooting in twrp
I am a novice at this, but first ran "twrp-3.2.1-2-taimen.img. from cmd prompt.
Then using TWRP installed " twrp-pixel2-installer-taimen-3.2.2-0.zip" everything was fine.
Then installed "Magisk-v16.1(1610).zip" and now keeps rebooting to TWRP.
I can get to fastboot and rerun twrp-3.2.1-2-taimen.img, but then cannot find the zip files to install or flash.
any help greatly appreciated!

bsinkoff said:
I am a novice at this, but first ran "twrp-3.2.1-2-taimen.img. from cmd prompt.
Then using TWRP installed " twrp-pixel2-installer-taimen-3.2.2-0.zip" everything was fine.
Then installed "Magisk-v16.1(1610).zip" and now keeps rebooting to TWRP.
I can get to fastboot and rerun twrp-3.2.1-2-taimen.img, but then cannot find the zip files to install or flash.
any help greatly appreciated!
Click to expand...
Click to collapse
If your post is correct, it appears your using two different twrp's?? Anyways, lets try this. Make sure your screen lock is set to swipe or none. Then fastboot twrp 3.2.2-0.img. Once in twrp, flash the twrp 3.2.2-0 installer zip, then flash your magisk zip and see what happens. Flashing a custom kernel is also recommended after you flash the twrp.zip, and before you flash your magisk zip :good:

Badger50 said:
If your post is correct, it appears your using two different twrp's?? Anyways, lets try this. Make sure your screen lock is set to swipe or none. Then fastboot twrp 3.2.2-0.img. Once in twrp, flash the twrp 3.2.2-0 installer zip, then flash your magisk zip and see what happens. Flashing a custom kernel is also recommended after you flash the twrp.zip, and before you flash your magisk zip :good:
Click to expand...
Click to collapse
I just wanted to create an account to say THANK YOU! I had the same exact issue, and your solution worked. I did not realize I needed to reflash magisk zip.
So again, thank you @Badger50

Nexus 5X bricked trying to root via TWRP (SuperSu)

Hi,
Googled a while and looked around in the forum but did not find anyone with the exact same issue as me so here goes.
Maybe someone could tell me where exactly I am doing wrong.
I have a LG Nexus 5X, latest Oreo 8.1 official update.
I want to install a custom kernel to improve performance and/or battery life.
Never rooted or anything like that so I googled around to know what to do.
So I unlocked the bootloader and flashed the latest TWRP custom recovery (v3.2.1-0).
The first strange thing unlike what I kept reading in tutorials and forums is that, although I did reboot directly into recovery after flashing TWRP, and completed flashing TWRP using its interface, I was never able to reboot into TWRP unless I flashed it again. As if TWRP could not avoid being overridden by the stock recovery. So to get back to TWRP I always have to:
reboot into the bootloader: adb reboot bootloader
flash TWRP: flash recovery twrp-3.2.1-0-bullhead.img
reboot bootloader: fastboot reboot
immediately start into to bootloader (power + vol down)
choose 'Recovery Mode' from there
Which seemed odd, that TWRP wouldn't 'stick', although I was not root yet.
Which gets me to the second part. All I wanted was to root my phone.
So after not finding a consistent way to do it - it seemed every website I visited gave me slightly different instructions to do so, I took the chance and did the following:
download latest SuperSU flashable zip file (v2.82) and copy it to internal storage
go through the process I describe in the list above to get into TWRP
install SuperSU zip file (via Install TWRP option, logs seemed ok, warned me it would take a while to boot again)
reboot, wait until it boots
But the phone got stuck in the boot screen - OS does not start to load - for at least half an hour.
Luckily, probably because the OS did not load, TWRP was not overridden and so I have access to it.
My main problem at this point is that, as a newbie on this, I am not sure what can I do in TWRP to try to restore the OS.
I have tried to restore a Nandroid backup I performed before all this, and also tried to Wipe Data / Cache and Dalvik.
Both did not work - OS still won't load.
What can I do at this point? Wipe System partition? Wouldn't that delete my Nandroid backup?
Maybe 'sideload' (not sure if the right term) an official google image for my Nexus?
Sorry again if questions like this can be easily found around the forum, but from the threads I checked I did not bump into the exact same scenario...
Thank you in advance

So in the meantime I have wiped system partition, no success either.
Ended up restoring my Nandroid backup and sideloading the latest OTA from Google, which successfully restored my phone.
Of course TWRP was overridden once again.
So back to the start: can anybody help me out on the best way to permanently flash TWRP and root the phone?
Thanks!

Forget SuperSU - Use Magisk to root your phone. As for TWRP getting overwritten - any time you take an update from Google, it will generally (if not always) restore the stock recovery. The way to get around that is to download the entire current update from Google and then use fastboot to flash the individual parts (system.img / boot.img / radio.img / vendor.img)

jbaumert said:
Forget SuperSU - Use Magisk to root your phone. As for TWRP getting overwritten - any time you take an update from Google, it will generally (if not always) restore the stock recovery. The way to get around that is to download the entire current update from Google and then use fastboot to flash the individual parts (system.img / boot.img / radio.img / vendor.img)
Click to expand...
Click to collapse
Well yes, the last time I expected TWRP to be gone since I have applied the whole image, and I wouldn't expect otherwise. My problem is that TWRP is always getting overridden each time I reboot my phone. Do you have any idea why?
Regarding Magisk, I will look around to see how to use it. Could you point me in the right direction?
Also I think I read somewhere that the kernel I wanted to flash in the end - Franco's Kernel - required SuperSU and did not work with Magisk. Am I wrong?

disacrol said:
Well yes, the last time I expected TWRP to be gone since I have applied the whole image, and I wouldn't expect otherwise. My problem is that TWRP is always getting overridden each time I reboot my phone. Do you have any idea why?
Regarding Magisk, I will look around to see how to use it. Could you point me in the right direction?
Also I think I read somewhere that the kernel I wanted to flash in the end - Franco's Kernel - required SuperSU and did not work with Magisk. Am I wrong?
Click to expand...
Click to collapse
Here's the guide stickied that should walk you through the TWRP install. https://forum.xda-developers.com/nexus-5x/general/guides-how-to-guides-beginners-t3206930
Just curious you are using "fastboot flash recovery ....." and not "fastboot boot recovery...."? The "boot" method doesn't do the install.
As for Magisk. There is a whole forum dedicated to it - https://forum.xda-developers.com/apps/magisk - Short story install the latest stable version (16.0) and call it good. I haven't had any issues with recent kernel builds including Franco, EX, etc.... One thing to keep in mind is that Magisk always gets flashed after the kernel install as it does some patching of the boot.img as part of its process.

jbaumert said:
Just curious you are using "fastboot flash recovery ....." and not "fastboot boot recovery...."? The "boot" method doesn't do the install.
Click to expand...
Click to collapse
Yes, flash, not boot.
Thanks a bunch for all your help. I didn't meant to be lazy to start by reading sticked topics, but it's so much new information for a newbie that I didn't exactly know where to start. Thanks again for sharing the links.

I'm not sure if you got this fixed. But if not, first fastboot boot twrp. Then flash supersu or magisk. Then boot back into the bootloader from twrp and fastboot flash twrp. That'll solve the problem.
Sent from my [device_name] using XDA-Developers Legacy app

jd1639 said:
I'm not sure if you got this fixed. But if not, first fastboot boot twrp. Then flash supersu or magisk. Then boot back into the bootloader from twrp and fastboot flash twrp. That'll solve the problem.
Click to expand...
Click to collapse
I tried that but I'm getting no luck with SuperSU, always gets me in a bootloop (actually, technically not a loop since it remains Frozen with the Google logo)
I'll give magisk a try and come back with feedback. Maybe it has something to do SuperSU incompatibility with Oreo 8.1..

disacrol said:
I tried that but I'm getting no luck with SuperSU, always gets me in a bootloop (actually, technically not a loop since it remains Frozen with the Google logo)
I'll give magisk a try and come back with feedback. Maybe it has something to do SuperSU incompatibility with Oreo 8.1..
Click to expand...
Click to collapse
What version of super su are you using? Use 2.82 SR 3 or 5
Sent from my [device_name] using XDA-Developers Legacy app

jd1639 said:
What version of super su are you using? Use 2.82 SR 3 or 5
Click to expand...
Click to collapse
V2.82 Stable, not Service Release. Is the last stable not compatible with Oreo? Official website is not specific about it, so I just assumed it was ok.

disacrol said:
V2.82 Stable, not Service Release. Is the last stable not compatible with Oreo? Official website is not specific about it, so I just assumed it was ok.
Click to expand...
Click to collapse
3 or 5 work on Oreo. I'm not sure about stable. I don't use it.
Sent from my [device_name] using XDA-Developers Legacy app

SR5 worked like a charm. I just wish there was a compatibility matrix somewhere in their website to avoid so many forum threads and misinformation on the subject and avoid all the hustle. The whole process is dead simple but it took me days and tailored help from you guys to figure this one out.
Thanks again to all of you for your assistance.

i had that issue with a nex 6 and flashing supersu fixed it. when i got a 6p i tried the same and get stuck on the boot logo and had to sideload factory firmware to get back to go. i have a 5x on the way maybe i will try magisk.

so after i flash twrp reboot the bootloader, i open twrp and flash supersu sr5 and all is well, no more disappearing act for twrp and no more stuck on the "google"?

Messed up with TWRP

Hi all, got TWRP installed OK on my Pixel 2 XL, hit reboot and then it goes straight back into TWRP, but with no Touch. So, thought I could flash a new kernel (Flash?) but... no ADB! I guess the phone hasn't probably booted so ADB can't see the phone.
Any options at this point?!

rendez2k said:
Hi all, got TWRP installed OK on my Pixel 2 XL, hit reboot and then it goes straight back into TWRP, but with no Touch. So, thought I could flash a new kernel (Flash?) but... no ADB! I guess the phone hasn't probably booted so ADB can't see the phone.
Any options at this point?!
Click to expand...
Click to collapse
If your phone boots back to bootloader on reboot, you did something wrong. Reflash system imgs and start over.

Thanks! Is that a matter of following the guides on the official google download page and getting the factory images?

rendez2k said:
Thanks! Is that a matter of following the guides on the official google download page and getting the factory images?
Click to expand...
Click to collapse
Yes. If you don't want your data wiped, open the install.bat file and take off the -w.
Did you unlock your bootloader correctly? Unlock critical? I believe the pixel 2 xl is the only phone where that has to be done.

Boot into bootloader and fastboot flash recovery.img again, once your in recovery, flash the recovery.zip from your storage again, then reboot recovery.... its happened to me, usually when I switch slots, all I have to do is reflash recovery.
Also note, If I am trying to boot at that point (rather than flash a ROM), I usually just flash the kernel and magisk and I'm good to go.

Thanks all! I flashed the patched boot.img again and it seems to be working OK

OK, this whole thing is confusing me now! I get TWRP installed then I have to re-flash my boot.img before I quit TWRP (a magisk patched version of Flash) or the phone keeps booting to TWRP. Thats fine, but when I've flashed the boot.img I loose TWRP!

rendez2k said:
OK, this whole thing is confusing me now! I get TWRP installed then I have to re-flash my boot.img before I quit TWRP (a magisk patched version of Flash) or the phone keeps booting to TWRP. Thats fine, but when I've flashed the boot.img I loose TWRP!
Click to expand...
Click to collapse
Yes you do loose twrp after flashing the boot.img. the reason being that stock recovery resides in the boot.img. So when you flash it, bye..bye twrp! Why not just fastboot twrp, then once in twrp, flash the twrp installer zip, then flash your custom kernel(if used) then flash the magisk zip for root. :good:

Ok! So this is where I'm confused. The Flash Kernel is called boot.img? So I'm flashing it in twrp with the boot option?

rendez2k said:
Ok! So this is where I'm confused. The Flash Kernel is called boot.img? So I'm flashing it in twrp with the boot option?
Click to expand...
Click to collapse
No. Flash kernel is just the kernel, the boot.img is from the factory image. Flash the zip version of Flash kernel in twrp, then flash magisk.zip :good:

Ok. So here a shot of my confusion! The file I got from Flash is this one, flashkernel-taimen.v.2.30-boot.img. The three choices I'm being given by TWRP is boot, system or vendor?

rendez2k said:
Ok. So here a shot of my confusion! The file I got from Flash is this one, flashkernel-taimen.v.2.30-boot.img. The three choices I'm being given by TWRP is boot, system or vendor?
Click to expand...
Click to collapse
Download the 14mb FlashKernel-Taimen-v2.30.zip instead and put it in your phone to flash from within TWRP, followed by the magisk zip
http://nchancellor.net/downloads/kernels/taimen/8.1.0/stable/

rendez2k said:
Ok. So here a shot of my confusion! The file I got from Flash is this one, flashkernel-taimen.v.2.30-boot.img. The three choices I'm being given by TWRP is boot, system or vendor?
Click to expand...
Click to collapse
DON'T DO THAT! You'll bootloop for sure!! Do what the post below says, and what I told you earlier!
Pyr0x64 said:
Download the 14mb FlashKernel-Taimen-v2.30.zip instead and put it in your phone to flash from within TWRP, followed by the magisk zip
http://nchancellor.net/downloads/kernels/taimen/8.1.0/stable/
Click to expand...
Click to collapse

Thanks all! All sorted! Now, to Xposed or not to Xposed. That's the question. Seems to be tripping safetynet but that's another quandary

rendez2k said:
Thanks all! All sorted! Now, to Xposed or not to Xposed. That's the question. Seems to be tripping safetynet but that's another quandary
Click to expand...
Click to collapse
There is no solution for that. Xposed always fails SafetyNet.

Is Xposed worth having these days? Are people still actively developing useful mods?

rendez2k said:
Is Xposed worth having these days? Are people still actively developing useful mods?
Click to expand...
Click to collapse
I think it's worth it, for the following apps:

I've had so many problems with TWRP on this phone that I don't even flash it anymore. If I need to flash a zip file I just fastboot into TWRP and flash it that way. Kind of a pain in the ass but I don't flash many zip files anyway.

Fuse8499 said:
I've had so many problems with TWRP on this phone that I don't even flash it anymore. If I need to flash a zip file I just fastboot into TWRP and flash it that way. Kind of a pain in the ass but I don't flash many zip files anyway.
Click to expand...
Click to collapse
No problems with TWRP here. Maybe you are flashing to the wrong slot.

rendez2k said:
Is Xposed worth having these days? Are people still actively developing useful mods?
Click to expand...
Click to collapse
I keep hoping Xposed will go die in a fire. It causes more problems than it solves, to the point ROM developers will tell you not to bother reporting issues with it installed. Rovo knows his stuff, but his creation has caused more damage to custom ROM development than Cyanogenmod did in its last three years.

Magisk version

I'm currently on Magisk 20.4
Is it safe to update to 21.4?
I heard some updates didn't go well on our phone.
Thanks

kenbo111 said:
I'm currently on Magisk 20.4
Is it safe to update to 21.4?
I heard some updates didn't go well on our phone.
Thanks
Click to expand...
Click to collapse
Yup, did both updates this morning. Working fine on 21.4

Quick question - I was going to do this myself to provide another datapoint, but I'm wondering about the "Preserve AVB 2.0/dm-verity" option. It's unchecked, which I think is correct... but what does this mean, and how should we have this set (ie, if we think for ourselves, what's this about?)

For some reason, the "Direct Install" (or whatever it's called) option in Magisk Manager didn't work. It just said "download complete" and didn't actually install it. Maybe that's why you heard that the update didn't go well. I had to do the "Download zip only" option, instead, reboot into recovery and install it there. It seems to be working fine. It's just the update option in Magisk Manager that didn't.

Osprey00 said:
For some reason, the "Direct Install" (or whatever it's called) option in Magisk Manager didn't work. It just said "download complete" and didn't actually install it. Maybe that's why you heard that the update didn't go well. I had to do the "Download zip only" option, instead, reboot into recovery and install it there. It seems to be working fine. It's just the update option in Magisk Manager that didn't.
Click to expand...
Click to collapse
Weird, direct install has always worked for me. Other devices not so much, but always on the V30.

schwinn8 said:
Quick question - I was going to do this myself to provide another datapoint, but I'm wondering about the "Preserve AVB 2.0/dm-verity" option. It's unchecked, which I think is correct... but what does this mean, and how should we have this set (ie, if we think for ourselves, what's this about?)
Click to expand...
Click to collapse
Sorry to repost, but for you guys who did the Magisk install, can you please answer this question? Do we leave this preserve option unchecked (that's how it's coming up on my phone).

schwinn8 said:
Sorry to repost, but for you guys who did the Magisk install, can you please answer this question? Do we leave this preserve option unchecked (that's how it's coming up on my phone).
Click to expand...
Click to collapse
Anyone would know better than me, but I've done it checked and unchecked without issue. I lean toward checking it when updating, not really sure why.

ldeveraux said:
Weird, direct install has always worked for me. Other devices not so much, but always on the V30.
Click to expand...
Click to collapse
Yeah, it's always worked for me, as well. This was the first time that it didn't, which is why I mentioned that it could be an issue with this particular version.
schwinn8 said:
Sorry to repost, but for you guys who did the Magisk install, can you please answer this question? Do we leave this preserve option unchecked (that's how it's coming up on my phone).
Click to expand...
Click to collapse
I didn't get a "preserve" option (or any options). Maybe that's only if you're coming from certain versions, like 20.x versions, since I believe that I updated from 21.0.

Osprey00 said:
Yeah, it's always worked for me, as well. This was the first time that it didn't, which is why I mentioned that it could be an issue with this particular version.
I didn't get a "preserve" option (or any options). Maybe that's only if you're coming from certain versions, like 20.x versions, since I believe that I updated from 21.0.
Click to expand...
Click to collapse
Nope, it's there on mine when I upgraded from 21.X to 21.X. It's right there when you expand Option when you start the Install process.

ldeveraux said:
Nope, it's there on mine when I upgraded from 21.X to 21.X. It's right there when you expand Option when you start the Install process.
Click to expand...
Click to collapse
I get no such option when I install it from recovery. Maybe it's only if you install it through Magisk Manager.

Well, I went ahead and installed it with the option unchecked. It applied and booted with no issues. Looks like it worked.
I figured leaving it unchecked makes sense, since I believe we disable dm-verity during the WTF process anyway, so we shouldn't need to touch it. I wanted to be sure before I did it myself, but it seems I didn't have to worry. Unchecked worked for me.

Osprey00 said:
I get no such option when I install it from recovery. Maybe it's only if you install it through Magisk Manager.
Click to expand...
Click to collapse
Well yeah, I thought that would have been clear. I said I was able to flash direct install, not through twrp

ldeveraux said:
Well yeah, I thought that would have been clear. I said I was able to flash direct install, not through twrp
Click to expand...
Click to collapse
I know, and I did the opposite. I was just speaking it out loud for the sake of discussion.
Speaking of things that should've been clear earlier, it's occurred to me that that "Preserve AVB 2.0/dm-verity" probably does exactly what it says. Remember that, until about a year ago, it was recommended to flash a "dm-verity" zip in recovery when installing a ROM. I don't remember the order, but it could've been that we were supposed to flash Magisk first and then dm-verity because Magisk erased the latter. That "preserve" option, therefore, likely allows you to flash Magisk without erasing dm-verity and having to go into recovery after to re-flash it. Now, we haven't needed to flash dm-verity for a year, so the option may not matter if you're using a ROM version that's less than a year old, though there's probably no harm in being safe and checking it. Anyways, that's my guess.

My attempt of update Magisk from 21.4 to 22.0 brought me completely forgotten fastboot screen. Phone no longer boots. Just fastboot screen.
Magisk's direct install seemed to do nothing for unknown reason. Later I needed to reboot and was surprised to see fastboot screen.
Which partition should I flash using fastboot to fix this (especially preserving data, root, twrp etc.) ?
boot or boot + system? I do have a TWRP backups of these, but they are in WIN format. Can Ijust flash them with fastboot?

There's more to this -
fastboot devices
list no devices.
Reinstallation of the LG drivers didn't help.

you
przemhb said:
My attempt of update Magisk from 21.4 to 22.0 brought me completely forgotten fastboot screen. Phone no longer boots. Just fastboot screen.
Magisk's direct install seemed to do nothing for unknown reason. Later I needed to reboot and was surprised to see fastboot screen.
Which partition should I flash using fastboot to fix this (especially preserving data, root, twrp etc.) ?
boot or boot + system? I do have a TWRP backups of these, but they are in WIN format. Can Ijust flash them with fastboot?
Click to expand...
Click to collapse
You need to flash the original boot image from your stock or custom ROM via the flash boot using the command "flashboot flash boot <boot_file>
Then reflash TWRP and re-install magisk. Maybe the v21.4. The latest one broke my boot too. Good luck!

You need to flash the original boot image from your stock
Click to expand...
Click to collapse
I've got TWRP flashable TWRP-H93030b_00_OPEN_EU_0704.zip with two files: boot.img, and boot-original.img.
If I recall correctly boot.img is pre-patched? Which of these should I use?
I finally managed to connect over fastboot.

przemhb said:
I've got TWRP flashable TWRP-H93030b_00_OPEN_EU_0704.zip with two files: boot.img, and boot-original.img.
If I recall correctly boot.img is pre-patched? Which of these should I use?
I finally managed to connect over fastboot.
Click to expand...
Click to collapse
boot.img should be good. You can always flash the other boot image if it does not boot up.

Managed to flash "boot.img", TWRP and boot to TWRP, but... got "Mount Decrypt Data Enter Password".
I haven't encrypted purposely any partition.
Furthermore TWRP locked and doesn't unlock when I try to "swipe to unlock"...

Forced reboot. Android started. Phone works, but Magisk isn't installed. Rebooted once again into TWRP and installed Magisk ignoring data decrypt message. TWRP said it failed, but after reboot Magisk Manager sees Magisk installed and so TitaniumBackup
Seems it solved the prolem.