Develop Bugs

Power Button not working all of a sudden

Hello. I posted something in the ICS thread since I thought it was an ICS issue but... it seems the power button in my 4G Touch has suddenly stopped working. The phone rebooted randomly and then the key just won't register. It doesn't go to sleep, or turn back on or anything. Heck, I even did a factory reset (its a stock ICS) to see if that resolved the issue and no... No go. The button click so it doesn't feel like its broken or anything, though it has a good cover.
What could have happened? Is it ICS related or did it just... stop working? =/

i had the same problem with my og epic....the button was clicking but it wasnt working...took the phone to sprint and they replaced the phone...i guess it was from too much flashing...lol...after that i started using quickboot...
Sent from my SPH-D710 using Tapatalk

Literally just had this issue. I thought it was from AOKP, but turns out it was just hardware. Sprint couldn't fix it for me so had to get a replacement. The button was just broken on the inside.
Sent from my SPH-D710 using xda app-developers app

I just had this issue today actually. The button wouldn't register any presses and my phone kept turning off. Couldn't lock the screen.
Sent from my Nexus 7 using xda app-developers app

Common problem with this phone. The one year warranty, which everyone is still covered under, covers it. Take it into a sprint corporate store for help.
Sent from my SPH-D710 using Tapatalk 2

Same problem here, I plan to take it into a sprint store for repair/replacement and I want to unroot my phone and revert it to a stock rom before hand but I need the power button to do so...heh... any ideas? Thanks!

Power Button Not Working SGS4 Not Sleeping SOLVED
OMG I was at my wits end with this brand new phone. Power button worked fine but would NOT put the phone to sleep. Nor would the phone sleep on its own. Wakelock checkers revealed nothing. Then, by pure luck, I did something with the Android SDK which brought up the logs... and Lo! and Behold! I saw this:
Power Manager Service: Check if boot animation finished
Power Manager Service: Check if boot animation finished
Power Manager Service: Check if boot animation finished
Power Manager Service: Check if boot animation finished
Power Manager Service: Check if boot animation finished
Now putting aside the fact that it was "Finding out whether" not "Checking if," this told me what was up.
What had happened was that I had deleted the boot animation files and not replaced them. I THOUGHT I had replaced them, but I had not. Ergo the constant checking thereof.

BaileyJ205 said:
Same problem here, I plan to take it into a sprint store for repair/replacement and I want to unroot my phone and revert it to a stock rom before hand but I need the power button to do so...heh... any ideas? Thanks!
Click to expand...
Click to collapse
Use Rebooter (Free in Play Store) to get into Download Mode (Bootloader)
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Steev43230 said:
OMG I was at my wits end with this brand new phone. Power button worked fine but would NOT put the phone to sleep. Nor would the phone sleep on its own. Wakelock checkers revealed nothing. Then, by pure luck, I did something with the Android SDK which brought up the logs... and Lo! and Behold! I saw this:
Power Manager Service: Check if boot animation finished
Power Manager Service: Check if boot animation finished
Power Manager Service: Check if boot animation finished
Power Manager Service: Check if boot animation finished
Power Manager Service: Check if boot animation finished
Now putting aside the fact that it was "Finding out whether" not "Checking if," this told me what was up.
What had happened was that I had deleted the boot animation files and not replaced them. I THOUGHT I had replaced them, but I had not. Ergo the constant checking thereof.
Click to expand...
Click to collapse
SGS4? We talking the device or the ROM? You can also delete the boot animation from the /system/media folder and it will just use the stock Samsung boot animation buried in the ROM's code, my guess is you've got more going on than you think you do. You might want to take a look at this thread to see just what's up.
(Yes, shameless self-plug...)

Stryke_the_Orc said:
SGS4? We talking the device or the ROM?
Click to expand...
Click to collapse
The device would not sleep or turn off the screen because the boot animation files were missing (which was my fault).

Please Help Safe Mode Not Getting Disable !

Hey Guys ! Please Help Me !
My Phone Was Dropped And The Screen Got Cracked !
Then I Had A Replacement Of The Screen !
After The Screen Got Repair , There Is A Safe Mode Showing At Bottom Of The Screen !
Is There Any Way To Disable It ?
Please Help People !! Please..

MATHReX said:
Hey Guys ! Please Help Me !
My Phone Was Dropped And The Screen Got Cracked !
Then I Had A Replacement Of The Screen !
After The Screen Got Repair , There Is A Safe Mode Showing At Bottom Of The Screen !
Is There Any Way To Disable It ?
Please Help People !! Please..
Click to expand...
Click to collapse
1.Remove battery while device is on 2.Leave battery out for 1-2 minutes. (I usually do 2 minutes to be sure)
3.Place the battery back into the phone.
4.Push in the Power button to turn on
5.Let device power on without holding any buttons as normal Once the device is on the home screen, you should no longer see Safe mode. Hope this helps, good luck.

kenxda33 said:
1.Remove battery while device is on 2.Leave battery out for 1-2 minutes. (I usually do 2 minutes to be sure)
3.Place the battery back into the phone.
4.Push in the Power button to turn on
5.Let device power on without holding any buttons as normal Once the device is on the home screen, you should no longer see Safe mode. Hope this helps, good luck.
Click to expand...
Click to collapse
I have the same problem, I got stuck in safe mode after replacing my cracked screen.
I did exactly what is suggested by 'kenxda33' above
and I did the following too:
1) Factory Reset from the settings menu.
2) Wipe Partition and Reset through recovery mode,
3) Upgraded the phone to Android 4.2.2 using Odin
4) Dissembled the phone and removed the volume buttons and switched it on.
and still I have the same problem,

I have the exact same problem after replacing screen as well, did you guys find any resolution for this?

Take ur ph to the service center..they may help u..
Sent from my GT-I9082 using xda app-developers app

that happened after coming out from the SC
i want to know what was the resolution from the people who faced it

that happened after coming out from the SC
i want to know what was the resolution from the people who faced it

Hey,
I'm having the exact same issue . Wondering if you found a solution

I have the same issue, people says that our screem is not original so its the cause of the problem. But i hope someone can find the solution.

Unable to come out of safe mode after screen replacement
malshafai said:
I have the same problem, I got stuck in safe mode after replacing my cracked screen.
I did exactly what is suggested by 'kenxda33' above
and I did the following too:
1) Factory Reset from the settings menu.
2) Wipe Partition and Reset through recovery mode,
3) Upgraded the phone to Android 4.2.2 using Odin
4) Dissembled the phone and removed the volume buttons and switched it on.
and still I have the same problem,
Click to expand...
Click to collapse
---------------------------------
Hi,
Did you find any solution for this problem...
Coz i am facind the same problem...

There is nothing we can do about it?
I'm having the same problem here and i've tried everything.
I've tried kenxda33 solution and it worked... until i rebooted my phone.
I've tried wipe all, reinstall my rom, install other rom (like CM 11).
Isn't there any softmod solution for this? Like, disable safe mode for real?

Can anyone post a screenshot?
And possibly the only solution in SC. But you could try flashing with a stock untouched ROM.
Sent from my GT-I9082 using XDA Premium 4 mobile app

laurorual said:
There is nothing we can do about it?
I'm having the same problem here and i've tried everything.
I've tried kenxda33 solution and it worked... until i rebooted my phone.
I've tried wipe all, reinstall my rom, install other rom (like CM 11).
Isn't there any softmod solution for this? Like, disable safe mode for real?
Click to expand...
Click to collapse
Can you please post a screen shot of the problem..?
Sent from my GT-I9082 using XDA Premium 4 mobile app

DMJoh said:
Can anyone post a screenshot?
And possibly the only solution in SC. But you could try flashing with a stock untouched ROM.
Sent from my GT-I9082 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
SS:
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I've tried to flash stock untouched through Odin and still with the problem

laurorual said:
SS:
I've tried to flash stock untouched through Odin and still with the problem
Click to expand...
Click to collapse
And coming tohe fact, i understand you are well aware of the device and android, so am not going to explanations. So to disable safe mode, usually, keeping the battery away for a minute or two will do the job. But i guess this is not the case you have.
Just Try, Turn the phone off.Turn it back on and hold the “up” volume button.if this dont work, try holding volume up and down simultaneously whilte switching on. This is used to enable safe mode.
If u are on JB when phone is on, press the power key and hold the Power Off button on the screen for a few seconds, and see something is happening.
Unfortunately, after switching to safe-mode, a restart should disable the safe mode.

DMJoh said:
And coming tohe fact, i understand you are well aware of the device and android, so am not going to explanations. So to disable safe mode, usually, keeping the battery away for a minute or two will do the job. But i guess this is not the case you have.
Just Try, Turn the phone off.Turn it back on and hold the “up” volume button.if this dont work, try holding volume up and down simultaneously whilte switching on. This is used to enable safe mode.
If u are on JB when phone is on, press the power key and hold the Power Off button on the screen for a few seconds, and see something is happening.
Unfortunately, after switching to safe-mode, a restart should disable the safe mode.
Click to expand...
Click to collapse
still in safe mode
i'm starting to think this problem came to me after i changed the screen (it was broken)
maybe it is some HW problem?

laurorual said:
still in safe mode
i'm starting to think this problem came to me after i changed the screen (it was broken)
maybe it is some HW problem?
Click to expand...
Click to collapse
A hardware problem may not cause phone to boot in to safe mode i think. If possible.. Carry it to a service centre.

May be, it's happening because of a kind of short-circuit. Once, I also faced almost the same kind of issue. In my case, almost 2 years ago, my old smartphone (GT-S6802) was again and again going into Download Mode whenever I tried to power on the smartphone. Then I took it to the SC. And they discovered that the reason behind it was an electrical short-circuit. They worked on it, and my problem was resolved. Therefore, I'd like to suggest whoever facing such issues, to take their smartphone to the SC and your problem will surely be resolved.

Solution found at last
Solution is here
So don't worry guys anymore
It's not a big deal as some of you guys say
I had my touch replaced n had the same trouble
I simply switched it off n interchange both sims with each other (means put sim 1 into the slot of sim 2 n vice versa.)
It became OK
U can also try removing Sim 1 n letting the slot empty n using only sim2 in its slot

How to get out safe mode LG Optimus L9
MATHReX said:
Hey Guys ! Please Help Me !
My Phone Was Dropped And The Screen Got Cracked !
Then I Had A Replacement Of The Screen !
After The Screen Got Repair , There Is A Safe Mode Showing At Bottom Of The Screen !
Is There Any Way To Disable It ?
Please Help People !! Please..
Click to expand...
Click to collapse
I JUST got out of safe mode after looking and searching for several weeks. I went to TMobile Manage My Account and did backwards how they showed turning ON safe mode....1. turn off your phone. 2. turn your phone on THEN when the phone logo appears, immediately let go of power button and then hold down VOLUME UP button till screen comes on. Sheesh, I'm glad to be done with this!

Samsung Galaxy S4 mini not booting

Hey All,
I was recently in a rush to switch off my phone but accidentally turned it on again...
So instead of waiting all the way through the start-up when the Samsung logo appeared I pulled out the battery and put it back in so it would switch off.
I only tried to switch my phone back on later at night, and realised it didn't switch on. I thought the battery was low so I left it to charge for a few hours...
Went back to check, the power charging indicator hadn't shown up and the phone didn't start either.
The wall power, plug and USB cable are fine as I tried with other devices but my phone just won't start
Its been two days and it still hasn't turned back on....
PLEASE HELP!!!

BlazeMike said:
Hey All,
I was recently in a rush to switch off my phone but accidentally turned it on again...
So instead of waiting all the way through the start-up when the Samsung logo appeared I pulled out the battery and put it back in so it would switch off.
I only tried to switch my phone back on later at night, and realised it didn't switch on. I thought the battery was low so I left it to charge for a few hours...
Went back to check, the power charging indicator hadn't shown up and the phone didn't start either.
The wall power, plug and USB cable are fine as I tried with other devices but my phone just won't start
Its been two days and it still hasn't turned back on....
PLEASE HELP!!!
Click to expand...
Click to collapse
You've bricked it, probably.
Is there any sign of life? Can you boot into download or recovery?
You'll need to follow one of the bricked threads .......
Sent from my Galaxy S4 Mini using XDA Labs

IronRoo said:
You've bricked it, probably.
Is there any sign of life? Can you boot into download or recovery?
You'll need to follow one of the bricked threads .......
Sent from my Galaxy S4 Mini using XDA Labs
Click to expand...
Click to collapse
Not that i can tell, tried charging no sign
Tried pushing power button and volume button with wall power and w/o but it wouldn't do anything.
I think that is what recovery mode is...
But what is download?
Also bricked is pretty serious....
Do u think the battery thing caused that?
What can I do now

BlazeMike said:
Not that i can tell, tried charging no sign
Tried pushing power button and volume button with wall power and w/o but it wouldn't do anything.
I think that is what recovery mode is...
But what is download?
Also bricked is pretty serious....
Do u think the battery thing caused that?
What can I do now
Click to expand...
Click to collapse
Doesn't sound very promising. Sounds like a hard brick.
recovery is home/vol up/power
download is home/vol down/power
but if it's not showing any signs of life it won't be much help.
If you plug it into your PC does Odin detect it?
If not then sending it for jtag repair is your only chance
(unless your battery was run down past the point it can be recharged and that is why it seems dead)
Sent from my Galaxy S4 Mini using XDA Labs

BlazeMike said:
Hey All,
I thought the battery was low so I left it to charge for a few hours...
Went back to check, the power charging indicator hadn't shown up and the phone didn't start either.
The wall power, plug and USB cable are fine as I tried with other devices but my phone just won't start
Its been two days and it still hasn't turned back on....
Click to expand...
Click to collapse
I had a similar situation. No sign of life, no recharging.
However I managed to get it back to life by pulling battery and cable, and putting it back again while holding power (and maybe other buttons) pressed. Had to try some times.

IronRoo said:
Doesn't sound very promising. Sounds like a hard brick.
recovery is home/vol up/power
download is home/vol down/power
but if it's not showing any signs of life it won't be much help.
If you plug it into your PC does Odin detect it?
If not then sending it for jtag repair is your only chance
(unless your battery was run down past the point it can be recharged and that is why it seems dead)
Sent from my Galaxy S4 Mini using XDA Labs
Click to expand...
Click to collapse
sumeruter said:
I had a similar situation. No sign of life, no recharging.
However I managed to get it back to life by pulling battery and cable, and putting it back again while holding power (and maybe other buttons) pressed. Had to try some times.
Click to expand...
Click to collapse
Odin wasn't detecting it....
But
After I tried @sumeruter 's method my phone started vibrating in pulses and my computer said an unidentified device was plugged in

sumeruter said:
I had a similar situation. No sign of life, no recharging.
However I managed to get it back to life by pulling battery and cable, and putting it back again while holding power (and maybe other buttons) pressed. Had to try some times.
Click to expand...
Click to collapse
Thank You so much...
Initially there was just pulsating vibration but no visuals but after 30 times.......
My phone showed the Samsung logo and booted as normal.
Thank you

BlazeMike said:
Thank You so much...
Initially there was just pulsating vibration but no visuals but after 30 times.......
My phone showed the Samsung logo and booted as normal.
Thank you
Click to expand...
Click to collapse
Good news, but better back up your stuff now just in case it doesn't boot again
Sent from my Galaxy S4 Mini using XDA Labs

IronRoo said:
Good news, but better back up your stuff now just in case it doesn't boot again
Sent from my Galaxy S4 Mini using XDA Labs
Click to expand...
Click to collapse
Can you recommend a good method and software to back up?

IronRoo said:
Good news, but better back up your stuff now just in case it doesn't boot again
Sent from my Galaxy S4 Mini using XDA Labs
Click to expand...
Click to collapse
Also many thanks again to @IronRoo , @sumeruter and team XDA

BlazeMike said:
Can you recommend a good method and software to back up?
Click to expand...
Click to collapse
I've not found a one click solution, unfortunately.
The closest to a one click solution is doing a nandroid backup, I use TWRP. However it's not easy to extract single folders to reinstall photos or similar but is good to replace a whole chunk of your system if your phone is not working properly.
I use "my phone explorer" to sync all contacts, calendars, photos etc locally, ie without Google. It will also sync your photos, unlike most backup apps & works with Firefox & Lighting calendar, unlike most backup apps. I also use EasyBackup app. for added safety of contacts etc. but it, like must apps only backsup stock browsers bookmarks, calendars etc. Music I always only pull from my PC so that's backed up. The hard stuff is photos etc from mesaging/chat apps like Signal etc I basically do the following,
http://www.guidingtech.com/51900/backup-whatsapp-cloud-platforms/
So yes I make it hard for myself as I don't just back everything up to Google, just some things.
Sent from my Galaxy S4 Mini using XDA Labs

Hello. I have the exact same problem I guess, my computer read it as (something)_dload and trying the battary and power method does not do anything sadly, any help?

Khaled125 said:
Hello. I have the exact same problem I guess, my computer read it as (something)_dload and trying the battary and power method does not do anything sadly, any help?
Click to expand...
Click to collapse
hi,
The something must be QLOAD_USB.
You have a hard bricked phone. Look for a debrick image for your phone and put it in sd card. Check the forum, you can find it.
I had the same problem, I can share the debrick file if you need it.
What is your phone model? and make?

Canercan said:
hi,
The something must be QLOAD_USB.
You have a hard bricked phone. Look for a debrick image for your phone and put it in sd card. Check the forum, you can find it.
I had the same problem, I can share the debrick file if you need it.
What is your phone model? and make?
Click to expand...
Click to collapse
I also need the image file I have a Samsung gt-i9195.
thanks in advance

Hi their my s4 mini switched off as in was playing a game so I put charger in n nothing happend have tryed all methods power and vol up and power vol down nothing not making any noise or anything what can I do

I don't know what to do
My phone died. Didn't turn on. All I know to do is to go to Dowloand mode and that's it!
This massage is writed.
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Anybody ?

lenovo p2 stuck in boot made is charger

My Lenovo P2 had 20% battery charged. I plugged the charger and after making sure that fast charging has been started, I left. After 2-3 hours I came back with certainty that the battery would have charged 100%. But unfortunately what I faced was a dead mobile. I unplugged the charger and re plugged it and found a white display with the note Boot mode is ‘charger’ . Now every time I connect charger I face the same note (sometime repeating sometime once) and cell phone does not go beyond this state.
How to fix it?
I am waiting for your response please.

try holding power and volume up and connecting cable just before you press the buttons to go into bootloader mode with the charging status shown...this is the only way i charge my P2..sometimes it doesnt work the first time...so make sure you connect cable just a split second before pressing vol up and power button...try it

In 1st attempt nothing happened. In 2nd attempt the white display with the said note "boot mode is charger" didn't appear. Red led is blinking and screen is black.

pressing and holding the power key + volume down key gives the following page attached as image. click this link
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the soft button "start" faced the power key so when i pressed the power key the same loop resumed
click this link

1) press power button for 10mins
2) try to boot into fastboot and from there boot into system
3) fastboot flash twrp and flash any ROM of your choice. Or fastboot flash stock
Sent from my Lenovo P2 using Tapatalk

Thanks for your kind advice. I have done it already . Stock rom was tried. But it stucks while flashing systemchunk4.img . So finally admitted in hospital i mean submitted to the company Lenovo for solution....

should charge
the image that you sent earlier of the bootloader is actually charging the phone...just leave it like that and see if it charges...i hope we talking about the same issue here.

No bro. Its not charging rather its a restart loop. Any how thanks for your time and reply. I have submitted the phone to service center. Let C what they do.. !!

ahmadjan1991 said:
My Lenovo P2 had 20% battery charged. I plugged the charger and after making sure that fast charging has been started, I left. After 2-3 hours I came back with certainty that the battery would have charged 100%. But unfortunately what I faced was a dead mobile. I unplugged the charger and re plugged it and found a white display with the note Boot mode is ‘charger’ . Now every time I connect charger I face the same note (sometime repeating sometime once) and cell phone does not go beyond this state.
How to fix it?
I am waiting for your response please.
Click to expand...
Click to collapse
I'm facing the same problem , can someone help

Bro I fixed my issue. It was battery issue. Battery was completely dead.
I fixed by replacing my phone battery

Fixed
jofinjose said:
I'm facing the same problem , can someone help
Click to expand...
Click to collapse
Bro I fixed my issue. It was battery issue. Battery was completely dead.
I fixed by replacing my phone battery

ahmadjan1991 said:
Bro I fixed my issue. It was battery issue. Battery was completely dead.
I fixed by replacing my phone battery
Click to expand...
Click to collapse
bro iam also facing same issue but somehow i installed stock rom...sometimes my phone charge shows 100 and suddenly decreases to 10 like that i think that is battery problem, btw how much they charge for battery

Galaxy Tab S - Only reboots if I HOLD POWER Button. Once I let go it powers off.

So I'm trying to fix my mom-in-laws tablet - at first it was stuck at a reboot loop.
But once I managed to switch it off and charge to 100% it stopped looping, but only goes to the logo screen then switches off.
I experimented a little - and found out if I hold the power button, it will load to the home screen.
Now I tried doing a factory reset by holding power+volume down + home button > it reaches the reboot menu but I can't make a selection because once I release the power button it switches off.
Wondering if there's anything I can do? I'd rather not buy spare parts and open up the tablet - and I'd also rather not bring it to a shop..
Any help would be appreciated!

I have more new about this issue.
I found a hardware fix for this, but it requires some soldering skills.
It seems that power consumption is triggering the baterry power protection.
I manage to bypass the battery protection circuit on the battery and it solves the power cycles.
If anyone wants help on this, I will try do take some pictures.
I also re-solder the power connector on the table PCB because it is weekly soldered...
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PandaKiller said:
I have more new about this issue.
I found a hardware fix for this, but it requires some soldering skills.
It seems that power consumption is triggering the baterry power protection.
I manage to bypass the battery protection circuit on the battery and it solves the power cycles.
If anyone wants help on this, I will try do take some pictures.
I also re-solder the power connector on the table PCB because it is weekly soldered...
View attachment 5161983
Click to expand...
Click to collapse
Hello, i will apreciate more information about bypass of batttery protection. Many thanks if tou can give this.

PandaKiller said:
I have more new about this issue.
I found a hardware fix for this, but it requires some soldering skills.
It seems that power consumption is triggering the baterry power protection.
I manage to bypass the battery protection circuit on the battery and it solves the power cycles.
If anyone wants help on this, I will try do take some pictures.
I also re-solder the power connector on the table PCB because it is weekly soldered...
View attachment 5161983
Click to expand...
Click to collapse
How to bypass the battery protection circuit?

foolone said:
How to bypass the battery protection circuit?
Click to expand...
Click to collapse
If you zoom in my picture from above, you can see the soldered white wires on the small PCB from the battery.

PandaKiller said:
If you zoom in my picture from above, you can see the soldered white wires on the small PCB from the battery.
Click to expand...
Click to collapse
Thanks. I have a different tablet (SM-T800) and the battery looks different. How did you figure out the pins for bypass the protection circuit.

foolone said:
Thanks. I have a different tablet (SM-T800) and the battery looks different. How did you figure out the pins for bypass the protection circuit.
Click to expand...
Click to collapse
I'm an electronic engineer, working in microelectronics testing, specialized in Power Management
But at the end, if you have freaking shutdowns, I decided to replace a battery by a power source, and then came out with the Idea of bypassing the over current circuit in the battery. Just a multimeter and a soldering iron and that's it!

PandaKiller said:
I'm an electronic engineer, working in microelectronics testing, specialized in Power Management
But at the end, if you have freaking shutdowns, I decided to replace a battery by a power source, and then came out with the Idea of bypassing the over current circuit in the battery. Just a multimeter and a soldering iron and that's it!
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Hi. I have the same problem on a tab s t805 tablet, I understand this problem is from the battery? if i change it, will it still have this problem? Thank you.

PandaKiller said:
I'm an electronic engineer, working in microelectronics testing, specialized in Power Management
But at the end, if you have freaking shutdowns, I decided to replace a battery by a power source, and then came out with the Idea of bypassing the over current circuit in the battery. Just a multimeter and a soldering iron and that's it!
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Click to collapse
1.if I enter force restore mode and after taking my finger off the power button it shuts down.
if I have my finger on the power button and use the arrow button in this menu, it moves up - down.
2.if I turn on the tablet, the logo appears and after 3 seconds it restarts and keeps restarting.
3.if I enter the software installation mode, it successfully completes this process and if finished it restarts and returns to problem 2.

drager2011 said:
1.if I enter force restore mode and after taking my finger off the power button it shuts down.
if I have my finger on the power button and use the arrow button in this menu, it moves up - down.
2.if I turn on the tablet, the logo appears and after 3 seconds it restarts and keeps restarting.
3.if I enter the software installation mode, it successfully completes this process and if finished it restarts and returns to problem 2.
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I don't believe your problem is with the battery. The random reboots because of the battery only occurs when the battery is not full. If you have a charged battery and the USB Power cable connected, it should not have random reboots.

PandaKiller said:
I don't believe your problem is with the battery. The random reboots because of the battery only occurs when the battery is not full. If you have a charged battery and the USB Power cable connected, it should not have random reboots.
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I charged the tablet up to 100% and it does the same thing, it restarts after a few seconds! do you think this problem could be from the motherboard or do you have another idea?

drager2011 said:
I charged the tablet up to 100% and it does the same thing, it restarts after a few seconds! do you think this problem could be from the motherboard or do you have another idea?
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You may need to flash a new ROM using Odin.

PandaKiller said:
You may need to flash a new ROM using Odin.
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I installed the software (Marshmallow, Lollipop) and after it restarts, it returns to the same problem (as in the video).I will try again.

drager2011 said:
I installed the software (Marshmallow, Lollipop) and after it restarts, it returns to the same problem (as in the video).I will try again.
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Even if you keep it plugged to the charger?

PandaKiller said:
Even if you keep it plugged to the charger?
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I tried it again and the same problem persists. if I plug it in you can see the video.

if I try to enter the hard reset menu see video!

drager2011 said:
if I try to enter the hard reset menu see video!
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Have you performed a factory reset? (wipe data)

PandaKiller said:
Have you performed a factory reset? (wipe data)
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I did this and after restart it does the same thing (reboots) .