Develop Bugs

various issues with google variant

I've had Google phones for years now, including previous Pixel, but I just got an XL 2 yesterday and I'm regretting it.
It's Google unlocked and running June's latest image. I've experienced various app crashing on stock, and random reboots.
Then there's the rooting and flashing. I unlocked the bootloader and installed the most recent, twrp (the one verified to work on xda for roms) but can't flash anything.
My twrp either hangs on the twrp start screen, or when it does load, the touch screen doesn't work. When I can get it going, every rom I flash gives me an error on the second step. I'm flashing on slot B by the way, that's what boots up when I boot to twrp.
Lastly, I am unlocked both for flashing and flashing_critical thru adb, so I'm at a loss and seriously confused.
When I FIRST unlocked everything, I was able to flash Nitrogen rom but I got stuck at the rom splash screen.
Tldr:
-What is the Correct install method/sequence for roms?
-do the slots matter?
-is random reboots and app crashing on stock a sign of a hardware issue?

I haven't installed a custom ROM on my P2XL, so I'm running rooted stock. Anyway, for rooted stock, this is what I did.
Entered bootloader mode.
Booted into recovery using the command "fastboot boot recovery.img", where "recovery.img" is the TWRP recovery iteslf. In my case, I renamed it "taimen.img".
Flashed the TWRP installer zip needed for the P2XL (Required if intending to replace the stock recovery).
Rebooted into recovery.
Flashed a custom kernel (Recommended - resolves touch issues in TWRP).
Flashed Magisk.
6. Rebooted.
If installing a custom ROM, flash it prior to the custom kernel. Slots only matter if running stock. Random reboots and app crashes are not signs of a hardware issue.

stevew84 said:
I've had Google phones for years now, including previous Pixel, but I just got an XL 2 yesterday and I'm regretting it.
It's Google unlocked and running June's latest image. I've experienced various app crashing on stock, and random reboots.
Then there's the rooting and flashing. I unlocked the bootloader and installed the most recent, twrp (the one verified to work on xda for roms) but can't flash anything.
My twrp either hangs on the twrp start screen, or when it does load, the touch screen doesn't work. When I can get it going, every rom I flash gives me an error on the second step. I'm flashing on slot B by the way, that's what boots up when I boot to twrp.
Lastly, I am unlocked both for flashing and flashing_critical thru adb, so I'm at a loss and seriously confused.
When I FIRST unlocked everything, I was able to flash Nitrogen rom but I got stuck at the rom splash screen.
Tldr:
-What is the Correct install method/sequence for roms?
-do the slots matter?
-is random reboots and app crashing on stock a sign of a hardware issue?
Click to expand...
Click to collapse
Ya know my friend, after our conversation yesterday, and your questions in the nitrogen thread, and now random reboots and app crashes, I think it's time to consider a factory reset. You shouldn't be having those problems on a stock setup. If that's not successful, then I would definitely consider an RMA. Just my 2 cents worth :good:

I agree. I got it used tho which is an issue.

Badger50 said:
Ya know my friend, after our conversation yesterday, and your questions in the nitrogen thread, and now random reboots and app crashes, I think it's time to consider a factory reset. You shouldn't be having those problems on a stock setup. If that's not successful, then I would definitely consider an RMA. Just my 2 cents worth :good:
Click to expand...
Click to collapse
Just so you know, I got the rom to flash finally, but it's stuck at the rom splash screen during first boot. I'm going to leave it and hope it eventually boots up.

stevew84 said:
Just so you know, I got the rom to flash finally, but it's stuck at the rom splash screen during first boot. I'm going to leave it and hope it eventually boots up.
Click to expand...
Click to collapse
If it doesn't after 5 minutes, do a hard restart with the power button. If that doesn't work, then reboot to twrp and flash the rom and twrp installer zip again.

Ok cool thanks. I relocked bootloader last night and went back to stock. Unlocked it all this morning from my work computer and different unlock app. So here's hoping.

Badger50 said:
If it doesn't after 5 minutes, do a hard restart with the power button. If that doesn't work, then reboot to twrp and flash the rom and twrp installer zip again.
Click to expand...
Click to collapse
I finally got everything to work. My vendor image is a mismatch but I could just flash junes and be done with it, right?

stevew84 said:
I finally got everything to work. My vendor image is a mismatch but I could just flash junes and be done with it, right?
Click to expand...
Click to collapse
What did you do to get it to work? You could just flash the June vendor.img to both slots. If you keep getting a vendor mismatch, probably nothing to worry about according to the Dev of nitrogen.

Different machine, cable and unlocking tool.
But I went to bone stock with locked bootloader, then flashed the newest twrp with the newest all in one tool. Was on slot A so wiped everything and flashed rom plus twrp again. I rebooted system to slot B, but then it just hung at the rom splash screen.
So I did it all over on slot A, ignored the "no os installed" message and booted anyway. Then it fired up. Rebooting into twrp from there took me to B, which is where I need to be for an image file or root.
So yea, thanks for the help.

I'm having this issue also. I tried flashing nitrogen, it hung. I tried to go back with factory reset Img and nothing happens in adb. Flashed the may img and it wouldn't boot all the way up. Now I'm stuck in bootloader trying to figure this all out. Seems like nothing in doing is working. I can get recovery to boot, but no files inside so idk. Tried to sideloadb nitrogen, but it said adb out of date for device when sdk is fully updated.

MatthewRobinson said:
I'm having this issue also. I tried flashing nitrogen, it hung. I tried to go back with factory reset Img and nothing happens in adb. Flashed the may img and it wouldn't boot all the way up. Now I'm stuck in bootloader trying to figure this all out. Seems like nothing in doing is working. I can get recovery to boot, but no files inside so idk. Tried to sideloadb nitrogen, but it said adb out of date for device when sdk is fully updated.
Click to expand...
Click to collapse
You didn't mention the out of date message in your other post, but uninstall SDK and then download the stand-alone adb/fastboot binaries from May of this year. Dump that in a folder (eg. c:\adb) and put that folder in your path statement. Manually flash the full factory image without modifying flash-all.bat. Post your screeen if you have any errors. :good:

stevew84 said:
I agree. I got it used tho which is an issue.
Click to expand...
Click to collapse
Google knows the date the phone was purchased based on imei number and honors their warranty by date, not owner. Unless it was blacklisted.

smartymcfly said:
Google knows the date the phone was purchased based on imei number and honors their warranty based on that.
Click to expand...
Click to collapse
Thanks. I might try to take advantage.

UNABLE TO BOOT ANY ROM AFTER LATEST GApps INSTALLATION

Hi people,
Today I unlocked my Lenovo ZUK Z2 Plus and installed latest twrp recovery 3.3.1 successfully(no errors until now, butter smooth). After that I flashed "CARBON-CR-7.0-OPAL-RELEASE-z2_plus-20200122-0608" without installing GApps. This time the ROM booted successfully. I was able to use the phone and make calls.
Then I installed the GApps " open_gapps-arm64-9.0-stock-20200131.zip" downloaded from OpenGApps.org. This time around, when I booted after installing GApps, the phone showed the welcome screen, but got suddenly turned off. After that the phone just shows ZUK logo and keeps rebooting.
To fix this, I went to recovery again, wiped clean DATA & DALVIK CACHE & CACHE & SYSTEM & VENDOR partitions, hoping I would start from the beginning and again install only ROM and not GApps and hoping I would be able to use the phone.
Now this time around, even though I wiped every partition that TWRP shows, the phone just kept rebooting without starting Android OS. So I cleaned again everything using TWRP(cleaning DATA procedure) and then transferred ROM zip files to phone and again flashed only ROM. Still the phone kept rebooting.
Now I got pissed off. I flashed factory ROM using QFIL method. This time after the boot animation it went straight to "Shutting Down" dialogue and again the phone restarted.
CAN SOMEBODY TELL ME WHAT THE HELL IS EXACTLY WRONG WITH MY PHONE?
WHAT COULD HAVE GONE WRONG THAT EVEN AFTER CLEANING ALL THE PARTITIONS AND FLASHING USING THE FACTORY PROCEDURE, THE PHONE STILL KEEPS REBOOTING?
Is there any other partition that needs to be cleared(which the TWRP does not list)?
Can somebody just tell me how to get out of this?
(Please explain the steps and the reason for each, as I am a noob in this matter).
WAITING FOR ANYBODY'S PROMPT RESPONSE AS MY PHONE IS COMPLETELY UNUSABLE. THANKS IN ADVANCE.

what ZUI version you flashed with QFIL ?

AndroidUser5 said:
Hi people,
Today I unlocked my Lenovo ZUK Z2 Plus and installed latest twrp recovery 3.3.1 successfully(no errors until now, butter smooth). After that I flashed "CARBON-CR-7.0-OPAL-RELEASE-z2_plus-20200122-0608" without installing GApps. This time the ROM booted successfully. I was able to use the phone and make calls.
Then I installed the GApps " open_gapps-arm64-9.0-stock-20200131.zip" downloaded from OpenGApps.org. This time around, when I booted after installing GApps, the phone showed the welcome screen, but got suddenly turned off. After that the phone just shows ZUK logo and keeps rebooting.
To fix this, I went to recovery again, wiped clean DATA & DALVIK CACHE & CACHE & SYSTEM & VENDOR partitions, hoping I would start from the beginning and again install only ROM and not GApps and hoping I would be able to use the phone.
Now this time around, even though I wiped every partition that TWRP shows, the phone just kept rebooting without starting Android OS. So I cleaned again everything using TWRP(cleaning DATA procedure) and then transferred ROM zip files to phone and again flashed only ROM. Still the phone kept rebooting.
Now I got pissed off. I flashed factory ROM using QFIL method. This time after the boot animation it went straight to "Shutting Down" dialogue and again the phone restarted.
CAN SOMEBODY TELL ME WHAT THE HELL IS EXACTLY WRONG WITH MY PHONE?
WHAT COULD HAVE GONE WRONG THAT EVEN AFTER CLEANING ALL THE PARTITIONS AND FLASHING USING THE FACTORY PROCEDURE, THE PHONE STILL KEEPS REBOOTING?
Is there any other partition that needs to be cleared(which the TWRP does not list)?
Can somebody just tell me how to get out of this?
(Please explain the steps and the reason for each, as I am a noob in this matter).
WAITING FOR ANYBODY'S PROMPT RESPONSE AS MY PHONE IS COMPLETELY UNUSABLE. THANKS IN ADVANCE.
Click to expand...
Click to collapse
Greetings buddy,
For my interest, i would like to know that the carbon rom u flashed was based on Android 9 or Android 10????

arielcasari said:
what ZUI version you flashed with QFIL ?
Click to expand...
Click to collapse
zui 2.5 st which is meant for indian users.

Naresh Rawat said:
Greetings buddy,
For my interest, i would like to know that the carbon rom u flashed was based on Android 9 or Android 10????
Click to expand...
Click to collapse
android 9.0.
what could be the problem... what do you think?

AndroidUser5 said:
android 9.0.
what could be the problem... what do you think?
Click to expand...
Click to collapse
I m at job so i reply late. No offense please ???
Ok plz let me know that if ur device boots up to fastboot mode. If yes then repeat the whole process but this time try installing different twrp. U can also use (https://www.androidfilehost.com/?a=show&w=files&flid=38683) tool kit for flashing. (DO NOT TRY TO RELOCK BOOTLOADER USING THIS TOOL) Also use flame gapps.
Will catch u soon regarding ur issue.
Peace out n TY???

Naresh Rawat said:
I m at job so i reply late. No offense please
Ok plz let me know that if ur device boots up to fastboot mode. If yes then repeat the whole process but this time try installing different twrp. U can also use (https://www.androidfilehost.com/?a=show&w=files&flid=38683) tool kit for flashing. (DO NOT TRY TO RELOCK BOOTLOADER USING THIS TOOL) Also use flame gapps.
Will catch u soon regarding ur issue.
Peace out n TY
Click to expand...
Click to collapse
i have already tried using twrp 3.2, but no luck. I will try flame gapps and will let you know. i will try this coming saturday.
Dhanyavad.

Naresh Rawat said:
I m at job so i reply late. No offense please
Ok plz let me know that if ur device boots up to fastboot mode. If yes then repeat the whole process but this time try installing different twrp. U can also use (https://www.androidfilehost.com/?a=show&w=files&flid=38683) tool kit for flashing. (DO NOT TRY TO RELOCK BOOTLOADER USING THIS TOOL) Also use flame gapps.
Will catch u soon regarding ur issue.
Peace out n TY
Click to expand...
Click to collapse
I again flashed the Stock ZUI 2.5. ST ROM using QFIL. But before doing this I had moved the SIM Card to another fone, so this fone was without any connection. This time the fone booted up successfully. Then I reflashed the Carbon ROM mentioned before and flashed Flame GApps Basic edition as suggested by you. This time the fone booted up successfully. But as soon as I connected the fone to internet, it downloaded something from Google Play Services in the background and again it started the same problem.
SO BASICALLY WHEN IT DOWNLOADS SOMETHING FROM GOOGLE IN BACKGROUND, IT STARTS THE REBOOTING NONSENSE.
I searched the internet for this and some articles on the internet suggested that "Google Dialer" component is causing reboot. Those articles suggested that if the "Google Dialer" is not set as the default dialer, it reboots. BUT HOW TO SET IT AS DEFAULT, WHEN IT STARTS REBOOTING IMMEDIATELY AND IT DOES NOT GIVE ENOUGH TIME?
EVEN THE EARLIER GApps 9.0 stock package that I flashed had warned to set the "Google Dialer" as default, but upon boot up it kept rebooting.
Even initially I started this UNLOCKING AND CUSTOM ROM FLASHING exercise after the factory ROM started rebooting after updating "Google play services".
So this seems to me an issue from Google.
Has Google done this on purpose to make people switch older phones to new ones?(Because I own a total of 3 android devices and only this device is rebooting not the other ones).
Looking forward to your reply.

Greetings Buddy..how's life going??
Ok once again I hv read ur op regarding ur problems. Let's start from the beginning. Boot up to twrp and format the data first before wiping everything. Try flashing lineageOS 16 using official gapps. (Flash gapps along with the flashing ROM, same time. Because flashing gapps after ROM's 1st reboot may result synchronise error or sometime bootloop). If successful, then flash ur carbon ROM and see whether it boots up to normal or still gives such error.
BTW sorry for my late replies. Till then peace out

Naresh Rawat said:
Greetings Buddy..how's life going??
Ok once again I hv read ur op regarding ur problems. Let's start from the beginning. Boot up to twrp and format the data first before wiping everything. Try flashing lineageOS 16 using official gapps. (Flash gapps along with the flashing ROM, same time. Because flashing gapps after ROM's 1st reboot may result synchronise error or sometime bootloop). If successful, then flash ur carbon ROM and see whether it boots up to normal or still gives such error.
BTW sorry for my late replies. Till then peace out
Click to expand...
Click to collapse
I am now not able to boot any ROM. Just keeps rebooting after the ZUK splashscreen. Hence, I again reflashed the Recovery properly, using the procedure as before. Now I am not able to boot into the recivery, too.

G4 only boots to TWRP

I recently dug out my old G4 to see if I can repurpose it for anything or just have it as a back up.
It's an H815 European variant with unlocked bootloader. When I last used it I had it running a custom ROM but when I got a new phone I wiped it somehow with TWRP (this is a few years ago so I can't remember).
Now whenever I turn it on, it boots into TWRP. If from TWRP I choose reboot to system, it boots to TWRP.
I tried to install a ROM but it wouldn't, giving the error "this ROM is for P1,G4,H815 (or something like that), your device is .".
So, I edited the ROM metadata and took out the device requirements and it installed fine, as did GAPPs & SuperSU, but still it only boots to TWRP. I've flashed bootloaders, kernels, god knows what else, but it only boots to TWRP. That's it.
I also tried to return it to stock using these: https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848 but it had errors connecting to servers and never installed anything.
I'm aware that I won't be able to recover anything on the device and that's fine! I just want to boot it with ANY ROM, and I'd be grateful for any help! Thanks!

mrmrchoice said:
I recently dug out my old G4 to see if I can repurpose it for anything or just have it as a back up.
It's an H815 European variant with unlocked bootloader. When I last used it I had it running a custom ROM but when I got a new phone I wiped it somehow with TWRP (this is a few years ago so I can't remember).
Now whenever I turn it on, it boots into TWRP. If from TWRP I choose reboot to system, it boots to TWRP.
I tried to install a ROM but it wouldn't, giving the error "this ROM is for P1,G4,H815 (or something like that), your device is .".
So, I edited the ROM metadata and took out the device requirements and it installed fine, as did GAPPs & SuperSU, but still it only boots to TWRP. I've flashed bootloaders, kernels, god knows what else, but it only boots to TWRP. That's it.
I also tried to return it to stock using these: https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848 but it had errors connecting to servers and never installed anything.
I'm aware that I won't be able to recover anything on the device and that's fine! I just want to boot it with ANY ROM, and I'd be grateful for any help! Thanks!
Click to expand...
Click to collapse
Go to thw official TWRP thread and flash the latest preview TWRP version.
Sent from my OnePlus 6T using XDA Labs

Try latest rom and one by one different rom. It's rom related issue. Don't worry, it'll be okay.

Question OP 9 Pro stuck on infinite loop using LineageOS

Hi all,
I'm coming back to Android after an absence and would like to run Lineage on a new US unlocked 9P. I followed the directions in the Lineage OS website and unfortunately the phone now is stuck in a constant animation of the blue circle moving left over the arc, and there isn't much I think I will be able to do about it until the battery runs out.
Here's what I did as per the directions:
-got and installed adb and fastboot from the Windows zips from Google
-added the install location to the path enviro variable
-installed the Universal ADB driver from Github
-activated USB debugging and OEM unlocking on the phone
-got the phone repeatedly into fastboot mode but then got stuck since 'fastboot devices' didn't show anything
-got bailed out by another thread here that one needs to check for updates with phone connected and Win will download the relevant USB drivers. Thanks!
-unlocked the bootloader
-downloaded and flashed the 18.1-20210803 recovery img
-sideloaded the copy-partitions 20210323 zip and it got stuck at 47% just like the website said
-did the factory reset
-sideloaded the the LOS 2020210803 zip to the phone and rebooted
When I rebooted it just plays the animation I mentioned at the beginning, so it looks like it's stuck in a permaloop.
I should mentioned that after I flashed recovery and booted into the normal Oxygen mode it would take much longer to boot so perhaps there was something already creating the loop.
I am grateful for any assistance.
Thanks,

How long have you left it? First install of Lineage spins for ages

I think I left it for an hour or so. Thanks for the info - I just turned it on and will let it spin for a while and see what happens.

I let it run until the battery died. I fully recharged it and am letting it run again. Same result of blue circle tracing arc to the left.

Success!
I tried to install the prior version (0720) which was then rejected for being too old. I wiped the storage and then tried 0803 again and it installed. I turned it on, the circle moved for a while and then the Lineage logo came up. I just finished setup, and it looks beautiful.
So far so good!

lexcimer said:
Success!
I tried to install the prior version (0720) which was then rejected for being too old. I wiped the storage and then tried 0803 again and it installed. I turned it on, the circle moved for a while and then the Lineage logo came up. I just finished setup, and it looks beautiful.
So far so good!
Click to expand...
Click to collapse
Everytime you flash a new rom you need to wipe data after

Anytime that happens you just go back into recovery and wipe data a few times and it should work after that.

It would've been due to encryption. Each time you flash a new rom you need to wipe userdata which removes your lock and also removes encryption. If you try to install a rom without doing this first, the rom cannot access that partition, because it doesn't yet know the unlock code/pattern, which is why it just gets stuck trying to do so.

Thank you to the 3 posters above, and I appreciate DJ Sub's explanation, makes sense in hindsight and I'll keep it in mind for the future.
PS - I'm glad to be back to the Android modding community, it's refreshing to be able to steer what OS my phone is running

I had the same problem (also a couple of different boot loop problems) when flashing LineageOS.
I did many things, so can't say for sure which one helped me to fix that, but the things I did were:
Restore from boot loop via MSM tool flashing EU image.
Updating that OxygeneOS to the latest using internal updater.
Repeating the LOS installation process several times in different conditions to isolate the source of the problem. I was changing LineageOS package, OpenGapps package, etc.
One of the problems I've found was that latest OpenGapps package (July 28th if I'm correct) was causing the boot loop on first start (very similar to what you're describing):
Phone tries to boot showing the LOS animation.
It goes for several minutes.
Then the phone vibrates, reboots and it continues from the start.
If I'm not mistaken, it was fixed by using the version from July 24th. The latest package also were removed from the OpenGapps page later AFAIR.
Second problem was after the successful boot. The phone was rebooting from the first setup wizard, booting to recovery (or some other partition) and proposing to make a factory reset.
Not sure which of my steps solved this, but I was updating back to the last LOS package watching closely that I'm flashing the same slot on each step and also making sure that slots are properly copied from one to another with the corresponding script.
Even in the most stable setup I was probably having some setup wizard loop problems, so I was skipping account setup steps and doing that manually later.
I'd say that installing LOS on OnePlus 9 Pro was most difficult and problematic installation in my experience and I did that a lot previously: HTC Wildfire S, THL 5000, Zuk Z1, Xiaomi Mi 5s, Xiaomi Mi 9T (Redmi K20) and several other devices.

S10e - impossibility to install Lineage OS

I need to install Lineage OS on this phone.
After multiple tries several months apart, I am still not in success.
Followed all internet tutorials and sites.
I don't want to install any G apps or any special root-things like magdisk..
I only want pure Lineage OS without any extra applications.
Way I tried and probably ended up like before:
Get newest official samsung ROM installed, update, enable usb debigging and oem, go download mode and go factory reset, get back in, sign in to wifi again, again enable develop. settings and usb debugging, go into download mode, take odin and install through the AP option the TWRP now that the phone is in download mode a 3rd time, supposed to be possible now with OEM unlock.
Most of the names on the way I don't understand, just follow tutorials.
I need to get to TWRP to then finally, as used to always, install Lineage from zip.
But I never get rebooted into TWRP recovery, just forver the samsung one, even when firmware is no longer there - after flashing in ap option the twrp tar again it never boots into TWRP afterwards.
Is there something else i must do? is not getting into oem unlock and flashing TWRP enough to get there?
And after, will the zip install finaly get me to have lineage installed?

Did you try the official guide?
https://wiki.lineageos.org/devices/beyond0lte/
I hope I picked the right phones, otherwise check devices overview.
Alternatively, perhaps this helps:
https://forum.xda-developers.com/t/...-a-graphical-installer-for-lineageos.4509995/
PS: Usually LOS doesn't do TWRP anymore but comes with its own recovery (a/b)

Why they don't do TWRP now?
I saw TWRP tuorial fot s10 on tutorials and it worked
Do I have to give up on TWRP way and od it with the adb commands from PC

frustrateduser118 said:
Why
Click to expand...
Click to collapse
It's because of this new double recovery scheme:
https://forum.xda-developers.com/t/help-understanding-a-b-partitions.3748003/post-75545902
https://source.android.com/docs/core/ota/ab
https://www.xda-developers.com/how-...ess-updates-affect-custom-development-on-xda/
EOD: It's safer, updating happens in the background, then just a quick reboot et voila.
frustrateduser118 said:
I saw TWRP tuorial
Click to expand...
Click to collapse
Yes, it's still there but perhaps you post a link to your guide (or ask there). To me it seems you had TWRP just in your RAM but not your phone?
As for me, I finally gave up on TWRP and use the "crappy" LOS recovery Have way more important things to waste my time on...
PS: Sorry to bring such "bad" news, wasn't too happy with that change myself

Great, I finaly made it work.
I followed the site with turotial on installation and did not try TWRP
First I had to install samsung ROM again
It turned out to still stay unlocked so went straight to download mode and this time flashed Lineage recovery sucesfuly with heimdall
Then it booted up and a half samsung sreen made it seem like there is trouble
but Lineage recovery launched
The adb load from PC did not work so i chose to instal zip from SD even there
Now Lineage is installed
Still don't know how much is randomness, luck and so on
But it's done and hopefuly repeatable

frustrateduser118 said:
hopefuly repeatable
Click to expand...
Click to collapse
I am afraid it is
Well, most of times: Far too often I forget some little prerequisite, too... so started a little text file with steps/reminders.

anyway glad for support sigmund
you re my friend now