Database Info

Weird sudden death

Hi all.
I have searched this forum (I know it's very frowned upon to start a thread without doing so) but the symptoms don't completely match my issue so I've resorted to asking.
I have a Nexus 5, which I was using as a hotspot, tethering to an Amazon fire stick, when it switched itself off.
It hasn't booted since, I've tried all possible button combinations for up to 2 minutes and still nothing.
If connected to a charger I get the white battery icon with the lightning bolt for a few seconds then blank screen, this will loop until unplugged.
When I have the battery icon on screen I can hold power button and it will display "Google" and vibrate as if starting to boot, then go blank again.
Have reinstalled original battery and the symptoms remain the same.
Am on marshmallow 6.0.1 totally stock am also out of warranty.
Any ideas would be greatly appreciated.
Thanks in advance.

Try to boot in bootloader mode if it boots connect to it comp and then unlock the bootloader if not and install latest Twrp if not then flash a custom rom and boot it then flash factory images .. Done. Back to Stock!
Try booting in bootloader mod while connecting it do the charger. (Wall charger )

pranavmali said:
Try to boot in bootloader mode if it boots connect to it comp and then unlock the bootloader if not and install latest Twrp if not then flash a custom rom and boot it then flash factory images .. Done. Back to Stock!
Try booting in bootloader mod while connecting it do the charger. (Wall charger )
Click to expand...
Click to collapse
Thanks for the suggestion but can't get into bootloader mode, it's only alive for about 3-4 seconds if plugged in then it goes off and then back to the white battery.

J_The_Nerd said:
Thanks for the suggestion but can't get into bootloader mode, it's only alive for about 3-4 seconds if plugged in then it goes off and then back to the white battery.
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Click to collapse
Mother board problem or change try changing ur battery... Surely Mother Board problem! Coz while u were connected to a hotspot and then u switched off it.. The battery would suddenly undervolt ur motherboard... And Undervolting id Very Very bad even if u change it from software or hardware...This had happen to my Sis nexus 5. .. So given it a chance changing the battery! Coz that helped Me.. But also try booting in bootloader mod and flashing twrp it will save couple of Bucks and Time
Press the thanks button if this helps

I would replace the battery first. It seems like the battery was completely drained while hotspotting.
Are you using the original USB cable and charger that came with the phone?

audit13 said:
I would replace the battery first. It seems like the battery was completely drained while hotspotting.
Are you using the original USB cable and charger that came with the phone?
Click to expand...
Click to collapse
Yes using the original charger, still does the same on power bank and old Samsung charger.
I'll give a battery swap another go.

pranavmali said:
Mother board problem or change try changing ur battery... Surely Mother Board problem! Coz while u were connected to a hotspot and then u switched off it.. The battery would suddenly undervolt ur motherboard... And Undervolting id Very Very bad even if u change it from software or hardware...This had happen to my Sis nexus 5. .. So given it a chance changing the battery! Coz that helped Me.. But also try booting in bootloader mod and flashing twrp it will save couple of Bucks and Time
Press the thanks button if this helps
Click to expand...
Click to collapse
If battery swap doesn't help is the motherboard easy to swap out? Providing I can find a replacement?

Motherboard is very easy to swap out.

Update, put original battery back in for the second time, first time didn't make a difference, possibly took longer this time. But all is good now.
Thanks to all

My Mi4c only works when charging

After my phone bricked I installed latest Chinese Stable ROM in EDL mode. I chose EDL mode for two reasons (1. I suspected that the phone only works while plugged in to charge and 2. the EDL mode turns off the phone after flashing so I can plug in the charger before booting). Turns out I was right. After the flash was over I tried to boot it without charging it first and it didn't work. After I connected it to the charger it booted normally and the ROM installed successfully.
I tried it again this morning after it fully charged. Few seconds after Ii disconnected it, it turned off. When I tried to turn it back on it was just rebooting to the MI logo screen. I plugged it in the charger and it rebooted 2 times (both times it got to those three dots at the bottom of the screen) and the third time it booted normally.
I also just noticed that the phone is curved a bit (maybe less than 1mm difference between upper left edge and rest of them), maybe from wearing it in tight pockets or something like that.

I think your battery might be dead. Try checking the voltage or the quality.
Replaceable batteries are pretty cheap.
Trimis de pe al meu Mi-4c folosind Tapatalk

Might be faulty battery, might be bad kernel, might be anything. Best way to check is to try to flash latest dev china rom via fastboot, if it still doesn't work try flashing stable 5.1.1 rom, again, via fastboot. If none of the solutions above doesnt work might be bad battery or worse, the controller on mobo died.

timipisoboy said:
Might be faulty battery, might be bad kernel, might be anything. Best way to check is to try to flash latest dev china rom via fastboot, if it still doesn't work try flashing stable 5.1.1 rom, again, via fastboot. If none of the solutions above doesnt work might be bad battery or worse, the controller on mobo died.
Click to expand...
Click to collapse
Well I hope it's a battery, because I just bought one to replace it. What is that mobo controller? Is it replaceable?

I have the same issue,
Battery replacement and stock rom of android 7 didn't help
I'm afraid is another hardware issue /:

I do have a similar problem, flashed xiaomi.eu and something have been broken.
I dont know how and why but its very strange.
Unplugged from supply i can boot up the phone, can see the miui logo and boot into fastboot but NOT into recovery and not boot up os.
As soon as i plug in supply it works quit normally, can boot up everything seems to be working, booting into twrp and flashing rom. No problem at all.
If i unplug while running os it imediately shut down.
The battery bar inside twrp show strange jumps.
What happens did somehting break ? Id like to gift the phone my mother for christmas.

Danny94 said:
I do have a similar problem, flashed xiaomi.eu and something have been broken.
I dont know how and why but its very strange.
Unplugged from supply i can boot up the phone, can see the miui logo and boot into fastboot but NOT into recovery and not boot up os.
As soon as i plug in supply it works quit normally, can boot up everything seems to be working, booting into twrp and flashing rom. No problem at all.
If i unplug while running os it imediately shut down.
The battery bar inside twrp show strange jumps.
What happens did somehting break ? Id like to gift the phone my mother for christmas.
Click to expand...
Click to collapse
Hi how did you resolved this. Facing same problem. Will replacing battery solve this.

visharagp said:
Hi how did you resolved this. Facing same problem. Will replacing battery solve this.
Click to expand...
Click to collapse
I purchased a new battery and it was working normally again and still working.

Danny94 said:
I purchased a new battery and it was working normally again and still working.
Click to expand...
Click to collapse
Great then I have to purchase a new battery ss well

[Help] Galaxy S7 with Superman Rom only Download mode

Hello XDA Community and stuff,
i have a problem with my S7, which i flashed with Superman Rom a few weeks ago. It worked fine with all its functions, but this morning i woke up with my phone under my pillow. I guess its battery got completly drained out, because it was already low when i fell asleep. i tried charging it, but nothing happens. It also won't boot and the only thing that works, is Download mode. I tried Recovery mode, force reset, safe mode..... nothing works. I'm using TWRP recovery.
I would appreciate, if i could keep my app data, if not then i won't bother, since it can't be helped in my case, if there is no way of doing it without full wipe or anything.
PS: if my english is wrong or at any point not perfect, it may be because i am german.
with kind regards
ceiber

ClockWorkMod recovery?
Flash TWRP

*Detection* said:
ClockWorkMod recovery?
Flash TWRP
Click to expand...
Click to collapse
I am so stupid! i meant Team Win. sorry misleading info

Try flashing TWRP again, if it doesn't work, flash stock and start fresh to make sure it's not a hardware fault

*Detection* said:
Try flashing TWRP again, if it doesn't work, flash stock and start fresh to make sure it's not a hardware fault
Click to expand...
Click to collapse
It worked, but why? it started charging with charging indicator (battery symbol and lightning in the middle with green LED on bottom) after the flash was succesfull. Then i detached it and connected my normal charging cable in wall socket. I had to wait for 1% charge and then i was able to boot normally into my rom. Is there any explanation for that?

ceiber said:
It worked, but why? it started charging with charging indicator (battery symbol and lightning in the middle with green LED on bottom) after the flash was succesfull. Then i detached it and connected my normal charging cable in wall socket. I had to wait for 1% charge and then i was able to boot normally into my rom. Is there any explanation for that?
Click to expand...
Click to collapse
Sounds like recovery corrupted, maybe due to the battery running out if it didn't manage to shut itself down in time

OPO keeps turning off unless connected via USB

Hi, 2 days ago my OPO just keeps turning off after a few seconds even when I'm in twrp screen. Even with the wall charger connected, but if I connect it to a computer or any other system it just works fine and normal.
I have lineage 14.1 and I already try factory reset, OS clean installation again and with previous versions. With gapps or without gapps still turning off. Very strange. Can anybody help? I don't know what to do.

JFPT said:
Hi, 2 days ago my OPO just keeps turning off after a few seconds even when I'm in twrp screen. Even with the wall charger connected, but if I connect it to a computer or any other system it just works fine and normal.
I have lineage 14.1 and I already try factory reset, OS clean installation again and with previous versions. With gapps or without gapps still turning off. Very strange. Can anybody help? I don't know what to do.
Click to expand...
Click to collapse
Replace battery.

Mr.Ak said:
Replace battery.
Click to expand...
Click to collapse
When I do factory reset, reinstall os, do the initial configuration the phone just works normally... Which is very strange...
But thanks for help

JFPT said:
When I do factory reset, reinstall os, do the initial configuration the phone just works normally... Which is very strange...
But thanks for help
Click to expand...
Click to collapse
It'll bootloop if you don't connect the device to charger.That's the sign of dying battery.

Mr.Ak said:
It'll bootloop if you don't connect the device to charger.That's the sign of dying battery.
Click to expand...
Click to collapse
Thanks a lot. I will try that. But isn't strange if i connect to the wall charger still turning off? And sometimes it reboots and stucks in Android is starting screen. Is there a way to test the battery? Last week the phone works just fine and the battery lasts the entire day. I just trying to understand what happened. Thanks again,and sorry for my bad english.

JFPT said:
Thanks a lot. I will try that. But isn't strange if i connect to the wall charger still turning off? And sometimes it reboots and stucks in Android is starting screen. Is there a way to test the battery? Last week the phone works just fine and the battery lasts the entire day. I just trying to understand what happened. Thanks again,and sorry for my bad english.
Click to expand...
Click to collapse
Yes,you can order Usb tester and try it,but instead of wasting time over this,just buy a new battery(look up battery thread in accessories for suggestions).

I think this just happen to me.
If not connecting to charger :
-Rebooting itself when flashing rom
-Bootloop after a few second when using the phone (All rom, even after revert back to COS 13)
-Somehow, it not bootlooping if on fastboot.
If connected to charger :
-Phone working as normally.
-

boot loop

Hello guys
my xiaomi got boot loop when i unlocked bootloader, and i have dm-verity corruption
HELP PLS
and when i trying to load to recovery phone is turning off

fafra228 said:
Hello guys
my xiaomi got boot loop when i unlocked bootloader, and i have dm-verity corruption
HELP PLS
and when i trying to load to recovery phone is turning off
Click to expand...
Click to collapse
Did u at least unlocked the bootloader? If yes, try to boot to fastboot and flash your phone rom.

Rares6567 said:
Did u at least unlocked the bootloader? If yes, try to boot to fastboot and flash your phone rom.
Click to expand...
Click to collapse
if not there is still hope for redmi 9a since there are ways to apparently bypass locked bootloader, just dont give up.

Ivan.Adriazola said:
if not there is still hope for redmi 9a since there are ways to apparently bypass locked bootloader, just dont give up.
Click to expand...
Click to collapse
Yea. If you can't unlock bootloader you can use Sp Flash Tool

Hey guys, anyone can help me please?!!!
I had an unsuccessful flash on my redmi 9a, now i can’t connect my phone to pc for start MTK bypass for flashing new rom, every time i connect, just turning on and shows redmi logo and next battery. Buttons aren’t working too.

amrrahimi.ar said:
Hey guys, anyone can help me please?!!!
I had an unsuccessful flash on my redmi 9a, now i can’t connect my phone to pc for start MTK bypass for flashing new rom, every time i connect, just turning on and shows redmi logo and next battery. Buttons aren’t working too.
Click to expand...
Click to collapse
Try disconnecting the battery and connect it again.

Rares6567 said:
Try disconnecting the battery and connect it again.
Click to expand...
Click to collapse
I did it, again same problem

amrrahimi.ar said:
I did it, again same problem
Click to expand...
Click to collapse
Buttons doesn't work? Let the phone reboot again and again to drain the battery. After that charge it. ( Idk what's the problem sry.)

Rares6567 said:
Buttons doesn't work? Let the phone reboot again and again to drain the battery. After that charge it. ( Idk what's the problem sry.)
Click to expand...
Click to collapse
It wouldn’t drain the battery because every time it starts charging and every time i connect, i see the capacity is more and more.

amrrahimi.ar said:
It wouldn’t drain the battery because every time it starts charging and every time i connect, i see the capacity is more and more.
Click to expand...
Click to collapse
Can you tell me step by step how do you get your device bricked?

Rares6567 said:
Can you tell me step by step how do you get your device bricked?
Click to expand...
Click to collapse
When i bought this phone officially it had russia rom, it worked too slow because of so many unusable apps, i flashed a china rom and it worked very good but i can’t install google play on him, i decided to flash global rom and again i flashed russian flash not specially. I flashed global rom and phone bricked.now when i connect USB for use bypass phone just turning on and shows redmi logo and then battery capacity and then screen off and no one buttons aren’t work.

I think u flashed something wrong and that's why the buttons aren't working?

Try flashing with sp flash tool without bypass tool.
Try kurdish sp flash tool too.

Rares6567 said:
Try flashing with sp flash tool without bypass tool.
Try kurdish sp flash tool too.
Click to expand...
Click to collapse
I tried this too, nothing.
Is there any way to flash without battery?!

amrrahimi.ar said:
I tried this too, nothing.
Is there any way to flash without battery?!
Click to expand...
Click to collapse
Hmmm. I don't think so because the phone can't boot without battery?

My phone did absolutely nothing, not even unrecognized by computer, it didnt even show up as something, IIRC the device manager gave me error 44, I gues you can try what I did.
Leave your phone charging for a while with the battery connected, at least an hour, but I did it a full night, then get some toilet paper and wire tape, wrap one or two turns of tp around the phone and butons (just so it doesnt get stained with the wire tape glue, you can skip this if you dont care, but its easy enough and its a lot easier), then over that tightly wrap wire tape so that the on/off button and the vol- buttons are pressed, leave it alone for a while, after like 5 hours I recall the phone started vibrating every 10 minutes or so, after that the phone was unrecognized by the pc, but no longer as error 44, this allowed me to flash.
after succesfully flashing the battery behaved weirdly for one charge cycle and then fixxed itself, it discharged about 50 % of the battery in around 5 minutes or less, like 3 minutes from 40 to 50, and the rest was discharging faster and faster, after fully charging it went back to normal, my guess is there was an issue where the phone did not actually know how much charge it had, wich screwed with it somehow.

Ivan.Adriazola said:
My phone did absolutely nothing, not even unrecognized by computer, it didnt even show up as something, IIRC the device manager gave me error 44, I gues you can try what I did.
Leave your phone charging for a while with the battery connected, at least an hour, but I did it a full night, then get some toilet paper and wire tape, wrap one or two turns of tp around the phone and butons (just so it doesnt get stained with the wire tape glue, you can skip this if you dont care, but its easy enough and its a lot easier), then over that tightly wrap wire tape so that the on/off button and the vol- buttons are pressed, leave it alone for a while, after like 5 hours I recall the phone started vibrating every 10 minutes or so, after that the phone was unrecognized by the pc, but no longer as error 44, this allowed me to flash.
after succesfully flashing the battery behaved weirdly for one charge cycle and then fixxed itself, it discharged about 50 % of the battery in around 5 minutes or less, like 3 minutes from 40 to 50, and the rest was discharging faster and faster, after fully charging it went back to normal, my guess is there was an issue where the phone did not actually know how much charge it had, wich screwed with it somehow.
Click to expand...
Click to collapse
Isn't it easier to just disconnect the battery?

Rares6567 said:
Isn't it easier to just disconnect the battery?
Click to expand...
Click to collapse
didnt want to take out the screen

Ivan.Adriazola said:
didnt want to take out the screen
Click to expand...
Click to collapse
The screen?? Wdym, take out the back....

amrrahimi.ar said:
Hey guys, anyone can help me please?!!!
I had an unsuccessful flash on my redmi 9a, now i can’t connect my phone to pc for start MTK bypass for flashing new rom, every time i connect, just turning on and shows redmi logo and next battery. Buttons aren’t working too.
Click to expand...
Click to collapse
Flash the phone in BROM mode with proper flash file for your device.