Database Users

Phone died randomly and now won't power up/charge. Neither LED nor screen turning on.

My phone was running CM12.1 (a week old build). Obviously rooted and runs TWRP.
I texted someone and left my phone with the screen turned off for about an hour. When I tried turning on again, nothing happens. The battery was about 80% the last time I used it.
Things I've tried to get it to work:
1. Charging it with the wall charger. [Nothing happens. LED doesn't turn on, phone doesn't turn on]
2. Plugging it into my PC. [PC doesn't read it. LED/Screen unresponsive]
3. Tried vol down key + power to boot into the bootloader. [No response]
4. Tried vol down key + power, then plugged it into my PC without leaving the buttons and waited for a minute. [No response]
Can anyone explain what the hell went wrong with this? I just use my phone for calls/browsing/texting. Didn't overclock anything. It's been rooted since day 1 (2 years back), and I last installed the CM rom a week ago so it wasn't due to a bad flash.

Please Help! LG G2 Won't Boot Up

I had rooted my dad's lg g2( D802) and installed twrp using an app named autorec as it was recommended by many people in the internet and had very high ratings and downloads in the play store. Everything was fine for a few weeks till I noticed that the app had an update. So I flashed twrp again from the app hoping it was a newer version and it said it completed the operation successfully. Then I just used the phone for sometime and after that I switched off the phone to enter the recovery. After it switched off, I pressed the button combination for entering the recovery but nothing came up. Then I attempted to just boot the phone and kept pressing the power button but nothing came up. I even kept pressing the button for upto a minute to hard reboot it in case it was just a case of hanging but nothing came up.After that, I plugged it in for charging and attempted to boot again. After I kept pressing the power button for about 30 seconds while charging, the led blinked red 8 times, paused and repeated itself as long as I kept holding the power button.
The problem is that it even the screen doesn't turn on.
I searched for this issue and saw that many others were facing this issue. I tried the following solutions given by them which did not work:
1) Holding the power button for a long time
2) Keeping it for charging until it's full but nothing comes up and the phone got heated up very much untill I stopped it a few hours later.
3) Removing the back cover and detaching the battery power cable from the phone after after waiting for sometime, reattaching it.
My dad showed it to the lg repair centre but they told him they need to replace the whole board which is very expensive, especially considering that it is a 2+ year old phone. My dad is very angry at me and probably won't let me touch his phones ever again if I don't fix this. Please help me.
Thanks in Advance
Edit: the charge was at 45% when I switched it off. Don't think it is because of low battery

With the phone pluggged into your computer, does the computer recognize the phone? And if yes, what does Device Manager report it as being?

arvindr07 said:
I had rooted my dad's lg g2( D802) and installed twrp using an app named autorec as it was recommended by many people in the internet and had very high ratings and downloads in the play store. Everything was fine for a few weeks till I noticed that the app had an update. So I flashed twrp again from the app hoping it was a newer version and it said it completed the operation successfully. Then I just used the phone for sometime and after that I switched off the phone to enter the recovery. After it switched off, I pressed the button combination for entering the recovery but nothing came up. Then I attempted to just boot the phone and kept pressing the power button but nothing came up. I even kept pressing the button for upto a minute to hard reboot it in case it was just a case of hanging but nothing came up.After that, I plugged it in for charging and attempted to boot again. After I kept pressing the power button for about 30 seconds while charging, the led blinked red 8 times, paused and repeated itself as long as I kept holding the power button.
The problem is that it even the screen doesn't turn on.
I searched for this issue and saw that many others were facing this issue. I tried the following solutions given by them which did not work:
1) Holding the power button for a long time
2) Keeping it for charging until it's full but nothing comes up and the phone got heated up very much untill I stopped it a few hours later.
3) Removing the back cover and detaching the battery power cable from the phone after after waiting for sometime, reattaching it.
My dad showed it to the lg repair centre but they told him they need to replace the whole board which is very expensive, especially considering that it is a 2+ year old phone. My dad is very angry at me and probably won't let me touch his phones ever again if I don't fix this. Please help me.
Thanks in Advance
Edit: the charge was at 45% when I switched it off. Don't think it is because of low battery
Click to expand...
Click to collapse
more info... what variant? phone does not boot.. can you press vol up then plug phone .. does download mode works... stay calmed this can be fixed..:fingers-crossed:

I haven't tried plugging it to the computer. The way to enter download mode is holding the volume up button right? Thank you for the suggestion. I'm away for a few days but I'll tell my dad to do so. I'll post what happens then. Variant is D802

OK I told him to do that. When he pressed the volume up button and then plugged it to his computer, 13 new partitions showed up in windows, and it is telling him that he needs to format the positions to use it. But nothing is coming up on the phone

Do NOT let Windows format the partitions(!)
Use the SRKTool instead to unbrick from qhsusb_bulk mode:
http://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
Afterwards use LG Flash Tool 2014 to flash the KDZ for your variant:
http://forum.xda-developers.com/showthread.php?t=2432476
It's better to let the battery charge to full first. Shut down the phone by holding PWR button for 10 seconds, then plug charger. It should work even in bulk mode.

Did you try these simple things...
shutdown phone keeping powerbutton down.
Start pressing power button & vol down....when you see LG logo for couple seconds. Release fingers and press vol UP and vol DOWN, same time. No power button.

MB525 said:
Do NOT let Windows format the partitions(!)
Use the SRKTool instead to unbrick from qhsusb_bulk mode:
http://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076
Afterwards use LG Flash Tool 2014 to flash the KDZ for your variant:
http://forum.xda-developers.com/showthread.php?t=2432476
It's better to let the battery charge to full first. Shut down the phone by holding PWR button for 10 seconds, then plug charger. It should work even in bulk mode.
Click to expand...
Click to collapse
But the problem is, even the screen doesn't turn on while on download mode. I'll surely try out the unbrick tool but will it work since normally, the download mode screen comes up. That thing is 760mb. I think it'll take some time for it to finish. (Ultra slow internet connection )

mal13 said:
Did you try these simple things...
shutdown phone keeping powerbutton down.
Start pressing power button & vol down....when you see LG logo for couple seconds. Release fingers and press vol UP and vol DOWN, same time. No power button.
Click to expand...
Click to collapse
The lg logo doesn't come up when I do that. If fact, even the screen does not turn on

Thank you guys! Srk tools worked! Again thank you very much

Is my phone done for? (Cant bot/charge/enter download mode/no response)

So few days ago my phone suddenly turned off and kept rebotting itself (It would reach the samsung galaxy logo and then turn off). I thought it was a battery issue so I removed it for 30mins and tried again, worked fine for an hour then problem started again. I left it over night to charge in the wall socket incase.
Same issue next morning and no solution.
I replaced the battery with a friends and the same issue happened on my phone (i used my battery on his and it works fine on his) so I removed the issue of battery itself.
That evening the phone then just stopped responding at all. It would not respond to pressing the power button (no load, no vibration).
Tried entering download mode using vol down + home + power. Nothing. (So cant use Odin)
Tried entering recovery mode using vol up + power. Nothing
Tried hard reset using vol up + power + home. Nothing.
(All the steps I used a fully charged battery from another s4 phone and removed/re-entered before trying again)
So I check online and notice some people having issues with power button, but even if that is the case - wouldn't my phone still charge? I dont even get the battery chargning icon on the screen when plugged in either PC or wall socket.
I opened it up and changed the motherboard with another samsung s4 and my original problem mobo still does not load on the new s4. (My new mobo worked on the old device though).
The ONLY response I got was when I used my original mobo on new s4 device and plugged it into PC, it popped connect and then disconnect sound and thats it (doesnt recognize usb port).
What are my options apart from getting another motherboard or going to a shop for a JTAG repair? I was contemplating just removing the power button and seeing if that helps in getting a charge response lol

Well your power button is broken for sure. Replace it and then test it.

Lennyz1988 said:
Well your power button is broken for sure. Replace it and then test it.
Click to expand...
Click to collapse
Wouldn't the phone still recognize charging even if the power button is faulty?

penguness said:
Wouldn't the phone still recognize charging even if the power button is faulty?
Click to expand...
Click to collapse
It always takes a few seconds before it starts to charge. So maybe the device reboots before reaching the charging phase. I'm guessing though. But since your problems started with power button issues it would be the logic place to start.
The part only costs a few dollars.

Well I'm exactly in the same situation as you, since this morning on a i9505 running JFLTPE-GPE 5.0 ROM. The screen appears for 1 second or 2 (Samsung logo) then it powers off . I need to remove the battery to try something else.
Same behaviour, even for recovery mode, so Odin is not an option.
I thought that changing some kernel settings have caused that, but as I just put them back to default values, it should not happen.
I didn't have some power button issues, it was just powered off at my wake up this morning. In your case, does your phone vibrate and power up instantly when you put the battery ? That's the case for me, but it should not be the normal.

My problem is actually solved : indeed, it was the power button. I removed all the screws and played a little with this power button (air dust, etc...), enough to make it start correctly !
I managed to do some backups, and now I hope that it won't break again.

Calicodesiles said:
My problem is actually solved : indeed, it was the power button. I removed all the screws and played a little with this power button (air dust, etc...), enough to make it start correctly !
I managed to do some backups, and now I hope that it won't break again.
Click to expand...
Click to collapse
Yeah, that happened before (automatically powering up, vibrating, going to samsung logo and then shutting down and doing it again until I removed battery - putting the battery back in with start it up without pressing the power button).
When it was in that phase, the one thing that did work was doing a soft reset (home+power+down vol, and then holding just power) - however that only worked for like an hour before it went back to the restart phase.
However now it doesn't respond to anything at all. (Any kind of response I got was when I put that mobo in another s4 and plugged in usb, which just gave a connected/disconnect sound on w7, no life on the phone itself).
Be very careful as to what you do, I suggest you do NOT leave the battery on it and charge it (which was the last thing I did before it went unresponsive) - my guess is phone went haywire trying to turn on/off continously.

SystemCrash | Hardbricked !?

Hi there best friends,
On my vacation i was installing Kali Linux MOD over the RR 7.1 ROM. It was not booting so i restored a twrp backup. After restore thw phone was very laggy ands apps where crashing. I completly resetted the phone and it was working fine. Until i openend my browser. The whole phone crashed. Completly black with still 30 procent battery. Connected the charger. Nothing happend ?. No led or icon. Cannot charge or power on at all. Is er something possible without RMA ??

rdrai said:
Hi there best friends,
On my vacation i was installing Kali Linux MOD over the RR 7.1 ROM. It was not booting so i restored a twrp backup. After restore thw phone was very laggy ands apps where crashing. I completly resetted the phone and it was working fine. Until i openend my browser. The whole phone crashed. Completly black with still 30 procent battery. Connected the charger. Nothing happend . No led or icon. Cannot charge or power on at all. Is er something possible without RMA ??
Click to expand...
Click to collapse
Do you mean the phone is on but screen is black, or the phone will not power on at all? Press and hold only the power button down for several minutes until it restarts. How is it recognized when you connect it to the PC?

v12xke said:
Do you mean the phone is on but screen is black, or the phone will not power on at all? Press and hold only the power button down for several minutes until it restarts. How is it recognized when you connect it to the PC?
Click to expand...
Click to collapse
Thankyou for your response.
I can't turn on the phone at all.
It is not responding at all like it is dead.
Tried charging but still no respone.
I cant test it yet on PC but i hope it will start if i connect it to PC.
What i Tried:
-hold power button for 1 a 2 minutes = no response
-charge phone for 4 hours = no led, no display
-tried to bootloader = no respones. I think it needs RMA but it have customrom installed ?. Should i sent it ? Do you think i can try other things ??

rdrai said:
Thankyou for your response.
I can't turn on the phone at all.
It is not responding at all like it is dead.
Tried charging but still no respone.
I cant test it yet on PC but i hope it will start if i connect it to PC.
What i Tried:
-hold power button for 1 a 2 minutes = no response
-charge phone for 4 hours = no led, no display
-tried to bootloader = no respones. I think it needs RMA but it have customrom installed ?. Should i sent it ? Do you think i can try other things ??
Click to expand...
Click to collapse
Try holding the power button only again for a solid 4-5 minutes. In many cases this has restarted a non-responsive device. Connecting it to the PC will not start the phone. I meant if the screen was off, the phone might be running in download mode, and recognized by the PC. Anyway unlocking and rooting does not void your warranty, but don't offer up that information. As far as they are concerned, your phone is completely stock, and just shut down by itself and now is totally non-responsive even after fully charging several times. Good luck on the button press.

[Urgent] Help please, phone wont start

Hi,
I slept last night with ~40% in my OP6T. When I woke up, the phone wont start anymore. I am rooted with the latest Magisk, and latest stock rom.
When I press the power power button, it doesnt even show me the screen where I have the bootloader warning. I've tried pressing the power key alone for 15 seconds, power + up volume for 15 seconds , power key + down volume for 15 seconds, power key + both volume keys for 15 seconds but nothing happens.
I just cannot get my screen to start:crying::crying::crying:
I have also tried connecting my phone to the laptop, I get a "safely remove OP6T" notification in the task bar, but my phone inst identified in the storage..
If anyone could help me, that would be greatly appreciated.
Thanks a lot

TarunN5 said:
Hi,
I slept last night with ~40% in my OP6T. When I woke up, the phone wont start anymore. I am rooted with the latest Magisk, and latest stock rom.
When I press the power power button, it doesnt even show me the screen where I have the bootloader warning. I've tried pressing the power key alone for 15 seconds, power + up volume for 15 seconds , power key + down volume for 15 seconds, power key + both volume keys for 15 seconds but nothing happens.
I just cannot get my screen to start:crying::crying::crying:
I have also tried connecting my phone to the laptop, I get a "safely remove OP6T" notification in the task bar, but my phone inst identified in the storage..
If anyone could help me, that would be greatly appreciated.
Thanks a lot
Click to expand...
Click to collapse
It's probably out of charge, happened to me and I just left it on charge for 15 minutes and then held the power button and it worked.

TarunN5 said:
Hi,
I slept last night with ~40% in my OP6T. When I woke up, the phone wont start anymore. I am rooted with the latest Magisk, and latest stock rom.
When I press the power power button, it doesnt even show me the screen where I have the bootloader warning. I've tried pressing the power key alone for 15 seconds, power + up volume for 15 seconds , power key + down volume for 15 seconds, power key + both volume keys for 15 seconds but nothing happens.
I just cannot get my screen to start:crying::crying::crying:
I have also tried connecting my phone to the laptop, I get a "safely remove OP6T" notification in the task bar, but my phone inst identified in the storage..
If anyone could help me, that would be greatly appreciated.
Thanks a lot
Click to expand...
Click to collapse
Hold pwr and up button for a couple of seconds.

So after 1000s of attempts, its started on its own (on the 1001th ) attempt when I held the vol up and pwr button. It wasnt a case of battery drain as I had only connected it to the system for 10 mins and the battery when it started was 53%.
Is there a way to find out how it tuned off ? some crash logs or something ?
Can an admin please close this thread ?

Yeah it seems like there's an issue with the phone loading up after it's went dead..and I've had that issue a few times where I had to play with it for an hour in order for it to finally load...I even knew it was dead and plugged it up to a charger and it would stay on the bootloader screen and I left it on the charger for an hour or so..and then held the <pwr><vol+> to shut it off and when I did all that I then powered it on and took the charging cable out and it still said it was low battery..so while on the unlocked bootloader screen it wasn't charging(weird)..so after fooling with it summore I finally got it to charge just random didn't do anything I hadn't previously done and all was good. But it seems like this only happens after it dies and I don't Kno if the unlocked bootloader is the issue or what but it's aggravating to have to fool with it for that long.

I think there is something wrong with your ROM.. Are you rooted? If I were you, I'd wipe the phone completely and install a new Rom, redoing the setup from scratch..

I have wiped and rooted with magisk and twrp recovery installed.. and I have zero issues in the current setup..now only when it has died did this seem to happen..oh I have wiped 3x because of bootloop and soft brick previously..so I don't think that is the solution (wipe and clean install)..just weird

smiles19 said:
I have wiped and rooted with magisk and twrp recovery installed.. and I have zero issues in the current setup..now only when it has died did this seem to happen..oh I have wiped 3x because of bootloop and soft brick previously..so I don't think that is the solution (wipe and clean install)..just weird
Click to expand...
Click to collapse
I haven't tried this, but from what I've read, using the MSM tool is the only sure way to completely factory reset your phone.. Using anything else could leave remnants in the ROM causing problems..

gregwee said:
I haven't tried this, but from what I've read, using the MSM tool is the only sure way to completely factory reset your phone.. Using anything else could leave remnants in the ROM causing problems..
Click to expand...
Click to collapse
For some reason my fastboot drivers are not working anymore, the MSM tool is not a option for me.