Stuck on boot loop - ONE Q&A, Help & Troubleshooting

This is me story, flashed a OTA to my cel and all the sudden my phone reboots loads up to the Oneplus logo and then nothing... Boot loop, so trying not to worry that much, noticed I could still boot to fastboot, I tried flashing CM11 praying that would get my phone back... Boot loop, Flashed CM12 and I got a low battery message boot loop, then going back to fastboot just got me a qualcomm brick, used the Color Os fix... Yay no more qualcomm brick but phone stuck on red icon, does someone have a clue what happened to my phone or if I would ever get it back to normal? :crying:

How long did you let the phone sit for (wait) and you assume it's stuck? As I know if you use the Qualcomm downloader will flash back to ColorOS and it will wipe everything automatically and your phone should be able to boot normally.(Last time when I revive my OPO if I remember correctly it will show the red 1+ logo for at least 30-45 sec.

It just sits there waited for a couple minutes, all the flashing goes ok, even with CM12S the flasing seems to be good, but it just boot loops, and the other thing when I flash a recovery it does flash it, but I cant make it boot to recovery what so ever... I just hope and pray there is a way to recover my phone since it would be a shame if someone told me, you have to buy a new motherboard... hopefully someone would just say replace the battery XD, because when I flash CM12s it does say the battery is too low to power and it keeps power cycling

Related

[Q] stuck in boot loop-can't get into bootloader

I've been trying to find something to fix this, but can't. Basically it's stuck in boot loop after a bad flash. I took the battery out and when I put it back in it goes straight to boot flash and stays. When I try to go into boot loader it buzzes 3 times and then nothing but flashing amber light. Someone said take the SD card out and then boot, but no joy. Any help is greatly appreciated!!
Forget it. After nearly 30 times trying to get into recovery, it finally worked. Not sure what was different, but go it.

Stuck at boot screen even after restore with tot method...

Hello Everyone,
I have been trying to help my friend with his soft-bricked G3. He wasn't rooted and had never even played with flashing anything, it just stopped booting one day and would display the "LG Life's Good" boot screen for a few seconds before going black and then just repeating this endlessly. I was able to get into recovery and download mode so I used the tot method to flash back to stock after a hard reset just produced the same results.
When I flashed the stock firmware, everything appeared to work fine, it went through the MiniOS bootup and everything, said success, gave me the hard reset status screen so when it finished I pulled the battery as instructed and rebooted but the phone still has the same issue. I have tried to run factory reset through recovery now that I flashed the new firmware and it still does the same thing, just hangs at the boot screen for a few seconds before going black and then trying again, endlessly.
Has anyone encountered this before? Is it bricked?
Thanks.
The_mamba said:
Hello Everyone,
I have been trying to help my friend with his soft-bricked G3. He wasn't rooted and had never even played with flashing anything, it just stopped booting one day and would display the "LG Life's Good" boot screen for a few seconds before going black and then just repeating this endlessly. I was able to get into recovery and download mode so I used the tot method to flash back to stock after a hard reset just produced the same results.
When I flashed the stock firmware, everything appeared to work fine, it went through the MiniOS bootup and everything, said success, gave me the hard reset status screen so when it finished I pulled the battery as instructed and rebooted but the phone still has the same issue. I have tried to run factory reset through recovery now that I flashed the new firmware and it still does the same thing, just hangs at the boot screen for a few seconds before going black and then trying again, endlessly.
Has anyone encountered this before? Is it bricked?
Thanks.
Click to expand...
Click to collapse
Pretty common prob plug it in to the wall charge see if it boots sometimes it still wont but most of the time it will the battery quality on the g3 is crap they last at most a year with a few exceptions i would first order a battery.

[Q] Google logo bootloop after flashing TWRP

Last night I tried to flash TWRP just because I wanted to go to a custom ROM- alas, the phone now will not go past the google logo. It usually hangs there for 10-ish seconds and then reboots. Occasionally hangs there indefinitely. It's not a power button issue- the button worked just fine before flashing and I've confirmed it still works normally with a multimeter.
I tried to reflash stock using the Google images and "flashall.bat", which says it succeeded- but the phone still loops. I can get into fastboot, but I get the bootloop even in recovery. Running the similar script through Nexus Root Toolkit always fails on flashing the system partition- usually a buffer error due to a sparse header. Can't even seem to get it to do the "fastboot boot TWRP.img" or whatnot. I've flashed KitKat, Lollipop, and MM stock roms to no avail- they all say they succeed, then continue to bootloop.
I've tried just about everything I've seen on here- but not being able to get into recovery hampers efforts like repairing the persist partition.
Help?
When you boot into recovery, the phone reboots itself? If it does, it could be a sign of a failing power button.
When flashing a stock ROM, are you flashing userdata.img and then performing a factory reset/wipe before booting the phone with a stock ROM for the first time?
When I can get into recovery (without a restart), the phone is totally fine.
I think part of the issue is that the battery ran down while I was trying to do the repair- hence it trying to restart and failing. Power button still seems fine (again, confirmed with a multimeter). I left it plugged in to my iPad charger (since that's a 2A charger) overnight and it was still blinking red in the morning. I moved it upstairs and now I can't even make it that far.
Perhaps the battery was just shot by the time I got the "repair" done, hence the boot loops. Is there any way to revive it shy of cutting open the battery + charging manually (with a bench supply) or just replacing the battery altogether? I may try doing a motherboard swap with my working Nexus 5 just to see if it is in fact the battery.
When the phone is powered off and connected to a power source, do you ever see a flashing red LED? You flashed the correct twrp for the hammerhead?
I would try a new battery because it seems like everything is working.

Phone stuck in boot loop / cannot go into recovery mode / tried flashing

I have a t-mobile (snapdragon processor) s7 that this morning when it was charging, it must have reset or something and the logo is all i can see now. I believe it's stuck in a boot loop. When i try to go to recovery mode, it gets stuck in a recovery boot loop as well. The only thing i've really been able to do is put it in download mode, and i've tried several times to flash it, to no avail. I have a crack on the back of the device, so they consider the warranty voided even though it's been like that for a year almost. Is there anything else i should try before i pay off the phone "lease" and upgrade again? Any tricks i don't know about?

Phone won't complete after stock flash

My father-in-law's S6 was rebooting right after the menu screen came up. After trying numerous things which wouldn't work (still had varying boot loops) like getting into the recovery mode and doing a factory wipe, I decided to use Odin and flash the base stock Android nougat on this (it had the one verizon security patch after that, so should be no issue doing this).
That went okay and it rebooted and got all the way to "Android is starting" which you see after a firmware upgrade. But I didn't realize the battery had run down through all this so it died at this stage. So it was taking a charge now, so let it charge overnight and give it another run.
Got up today, tried to start it...back to the boot loop. So I figured I'd flash stock again with Odin (can always get back to that mode).
It completes successfully and then after the reboot at about 32% jumps to "erasing" and then the boot loop again.
Got into recovery mode once and wiped cache (pointless at this point, but whatever) and did factory reset there, then boot to bootloader. Got all the way to the verizon screen...and then boot loop again.
Is this phone just done? The only thing I can consistently get to is Odin mode. I tried the stock reflash a couple more times and keep ending up in a boot loop and it doesn't even get past the "custom" screen now. And I can't even actually get it to shutdown for that matter. I can get to the battery pull mode but if I try to power off from there, I just get the black screen with the blue light.
And, to make matters even worse, now on restart, it brings up the blue system update screen for a second, then jumps over to the no command screen, sits there for a second, then reboots again. I think I've somehow managed to even blow the recovery menu but this has all been stock and never had any custom firmware or root.
Any help/suggestions would be greatly appreciated!

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