Boot loop Help - Google Pixel 4a 5G Questions & Answers

I installed the latest LieageOS with full wipe and that was fine. I them tried to install a rooted boot.img and my devcie now boot loops.I can hold vol- and power to get the boot menu. No matter what I select the device boot loops. How do I break out of this loop?

Got it unstuck. When in fast boot I ran flash-all.sh from the latest factory image.

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Boot loop out of ideas

So I was on the note4UXEdge ROM for about a week, everything was fine. Today it randomly rebooted and Android would no longer load. It just loops on the splash screen, with Recovery reboot, recovery is not SEandroid enforcing, set warranty bit : recovery loop. I've tried to odin stock ROM but that just leads to recovery reboot loop. I've tried to odin a twrp recovery but that doesn't do anything, if that's even possible? Holding volume UP+power+home is supposed to get me to a menu to wipe cache/dalvik but I never get to that. I can still go into download mode so i hope there's more i can do. Halp please, thanks in advance.

Probable brick, need help!

Hi,
I was trying to install Linage OS 14 on my H9L and I got it installed fine. I then tried flashing TWRP with `fastboot flash recovery_ramdisk twrp.img` I then did `fastboot reboot` and once back into Linage I rebooted into TWRP from the power menu. After this TWRP got stuck on the loading screen so I tried rebooting, the phone rebooted back into TWRP and got stuck again. I then tried getting into fastboot by plugging in the USB and holding the volume down, rebooted into TWRP still. I then managed to get out by holding the power button and the + and - volume buttons to get into eRecovery. I then tried to do reset by doing 'Install latest version over WiFi' which downloads then fails and now I can't boot up my phone and it just goes straight to eRecovery every time I boot it up. I can still get into fastboot and I've tried flashing recovery_ramdisk, ramdisk from both a system update zip and from a TWRP backup with also no luck. At this point I really just want to get back to stock.
If anyone can help I'd really really appreciate it and be forever grateful .
Thanks,
Jake
jcbod said:
Hi,
I was trying to install Linage OS 14 on my H9L and I got it installed fine. I then tried flashing TWRP with `fastboot flash recovery_ramdisk twrp.img` I then did `fastboot reboot` and once back into Linage I rebooted into TWRP from the power menu. After this TWRP got stuck on the loading screen so I tried rebooting, the phone rebooted back into TWRP and got stuck again. I then tried getting into fastboot by plugging in the USB and holding the volume down, rebooted into TWRP still. I then managed to get out by holding the power button and the + and - volume buttons to get into eRecovery. I then tried to do reset by doing 'Install latest version over WiFi' which downloads then fails and now I can't boot up my phone and it just goes straight to eRecovery every time I boot it up. I can still get into fastboot and I've tried flashing recovery_ramdisk, ramdisk from both a system update zip and from a TWRP backup with also no luck. At this point I really just want to get back to stock.
If anyone can help I'd really really appreciate it and be forever grateful .
Thanks,
Jake
Click to expand...
Click to collapse
I also cannot flash TWRP anymore.
Power down phone, then plug a USB cable into PC then phone. Whilst plug Cale into phone press and hold volume up.
This should place you into Fastboot mode.
What does it say for FRP.
If it says that is locked that would be your issue of why you can not flash anything.
Sent from my LLD-L31 using Tapatalk
A small typo above from @hacktrix2006 , Vol Up will actually bring you to eRecovery.
Vol Down will bring you to fastboot mode.
@Sparkrite , nice catch that is what i ment. When i replied i was awake for at total of 1 minute so brain wasn't fully working right.

HELP I deleted OS via twrp

I need help. I deleted/wiped in advanced mode in twrp the system and now I have No OS installed. I don't kow what to do now the phone does not bood except into twrp.
Use NOST
Sent from my NB1 using XDA Labs
After hours of "work" I have my phone running again. I was able to get the phone run stock recovery again and then was easy to just flash the oreo zip.
well good to know you solved the problem.
but just in case keep your phone bootloader critical unlocked so you can use NOST if you face such problems again.
Just happened again. I wanted to put twrp img back on the phone and as it reboots... its stuck on "Powered by Android". I cannot flash or do anything since its stuck and does not turn off. I tried all combinations of volume/power button and hold them for minutes... just does not turn off. So its not recognized by NOST or anything. Now I am really screwed as it seems...
theviking33 said:
Just happened again. I wanted to put twrp img back on the phone and as it reboots... its stuck on "Powered by Android". I cannot flash or do anything since its stuck and does not turn off. I tried all combinations of volume/power button and hold them for minutes... just does not turn off. So its not recognized by NOST or anything. Now I am really screwed as it seems...
Click to expand...
Click to collapse
I am at such condition too... how long battery lasts? I think it's possible to wait for the phone to fully discharge and then we may have access to recovery. right?
theviking33 said:
Just happened again. I wanted to put twrp img back on the phone and as it reboots... its stuck on "Powered by Android". I cannot flash or do anything since its stuck and does not turn off. I tried all combinations of volume/power button and hold them for minutes... just does not turn off. So its not recognized by NOST or anything. Now I am really screwed as it seems...
Click to expand...
Click to collapse
If you tried to "fastboot boot" the TWRP image: thats "normal", fastboot boot is broken on every firmware since august. You have to flash TWRP to your active boot partition to boot it. However, at least for me, when being stuck in that screen I can still use "fastboot reboot" or "fastboot reboot-bootloader" to get the phone back in a working state.
Also, if you try to flash TWRP to your active boot: Please don't flash the image from the official site, since that is unable to boot into the system normally. Use my recompiled generic TWRP boot image that you can flash, regardless of security patch version: https://forum.xda-developers.com/nokia-8/development/twrp-data-decryption-android-9-t3911411
If you did not fastboot boot an image: Hold down volume up, volume down and power for multiple minutes until the phone turns off. Then hold volume down while connecting the phone to a computer through USB, and it will start into fastboot mode. Then just revert whatever you changed and reflash the stock image.
THMSP said:
If you tried to "fastboot boot" the TWRP image: thats "normal", fastboot boot is broken on every firmware since august. You have to flash TWRP to your active boot partition to boot it. However, at least for me, when being stuck in that screen I can still use "fastboot reboot" or "fastboot reboot-bootloader" to get the phone back in a working state.
Also, if you try to flash TWRP to your active boot: Please don't flash the image from the official site, since that is unable to boot into the system normally. Use my recompiled generic TWRP boot image that you can flash, regardless of security patch version: https://forum.xda-developers.com/nokia-8/development/twrp-data-decryption-android-9-t3911411
If you did not fastboot boot an image: Hold down volume up, volume down and power for multiple minutes until the phone turns off. Then hold volume down while connecting the phone to a computer through USB, and it will start into fastboot mode. Then just revert whatever you changed and reflash the stock image.
Click to expand...
Click to collapse
It turns out that there was Pie on my partition B and I was not aware of that. Booting into TWRP wasn't working, so I flashed it and then factory reset system. And it broke the phone.
Now I tried to boot the TWRP from slot B and rebooted partition A. Now the phone is up... Thanks
Where can I find the appropriate stock boot image for my partition B? and should I fastboot it with boot_b command or what?

Cannot flash/enter twrp.

Hi.
Im having alot of trouble doing custom stuff with my mi 9. At this point i have succesfully flashed aospextended on my mi 9 but i cannot enter twrp. It just "recovery loops" with the mi logo. I have tried flashing it again, just booting to twrp from fastboot but it still won't boot to twrp. I am consistently having issues booting to twrp at a point where i had to flash global stable from fastboot because it never stopped booting to stock recovery, where after i formattet cache and userdata. Thanks in advance.
Deleted
Hi!
Try telling us what you have done so far (in terms of modifications as well). Which recovery did you (try) flashing?
I personally tried skiantibag & maufirinio (I know it's not the proper spelling but you'll find it) + flashing RevolutionOS.
You've probably heard it already: Fastboot -> flash recovery -> does it boot into (after shutting down -> volume up + standby pressed)
If not try (first flashing the recovery) then booting from the .img file via fastboot.
After that wipe everything and flash Revolution OS/xiaomi.eu. Do you still experience the problems then? Short hint at the end: setup a password (code - during the android setup process) since your storage gets encrypted (no matter what - at least for me).
Good night, good luck!
ollioddi said:
Hi.
Im having alot of trouble doing custom stuff with my mi 9. At this point i have succesfully flashed aospextended on my mi 9 but i cannot enter twrp. It just "recovery loops" with the mi logo. I have tried flashing it again, just booting to twrp from fastboot but it still won't boot to twrp. I am consistently having issues booting to twrp at a point where i had to flash global stable from fastboot because it never stopped booting to stock recovery, where after i formattet cache and userdata. Thanks in advance.
Click to expand...
Click to collapse
after flashing twrp, (assuming ur using fastboot cmds to boot to twrp) use buttons to reboot to twrp. Long press power button and volume up together until device reboots, once it vibrates, let go of power but keep holding vol up until twrp boots. Then disconnect phone from pc. Twrp should now stick. Which twrp you using?
reg66 said:
after flashing twrp, (assuming ur using fastboot cmds to boot to twrp) use buttons to reboot to twrp. Long press power button and volume up together until device reboots, once it vibrates, let go of power but keep holding vol up until twrp boots. Then disconnect phone from pc. Twrp should now stick. Which twrp you using?
Click to expand...
Click to collapse
This. Rebooting from command line did not work for me either. Just press power + vol up until screen closes and keep pressing 3 more seconds after mi logo appears.

OS wiped mistakenly, Not getting into download mode with Power + Volume Down + Bixby buttons.

Hi, I had mistakenly wiped the OS while wiping out the data while trying to flash no-verity-opt-encrypt (error 1). System was stuck in boot loop, with only Samsung Logo displayed. No amount of Power+Volume Down + Bixby buttons could get out of the boot loop.
Solution: As I was able to boot into TWRP (only application left in phone), rebooted into download mode from TWRP, managed to flash into stock firmware and this time successfully rooted the phone using magisk after successfully flashing Disable_Dm-Verity_ForceEncrypt latest version instead of no-verity-opt-encrypt which keeps failing due to error 1.

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