[Q] Note 3 random powers down - Galaxy Note 3 Q&A, Help & Troubleshooting

For about a Week my note 3 started to just power down. Sometimes it happens when I deactivate the lock screen or it might happen when Im just using my phone.
I have updated it to kitkat N9005XXUENB3_N9005OXXENB1_XEO and have tried other custom roms and it still is doing the same. PLEASE any advice would be awesome!
thanks in advance.

Taffwales said:
For about a Week my note 3 started to just power down. Sometimes it happens when I deactivate the lock screen or it might happen when Im just using my phone.
I have updated it to kitkat N9005XXUENB3_N9005OXXENB1_XEO and have tried other custom roms and it still is doing the same. PLEASE any advice would be awesome!
thanks in advance.
Click to expand...
Click to collapse
Try FULL wipe (Including wiping internal sd) and then reflash the ROM and see if it still continues, if it does... You might have to take the device in for servicing.

Thanks for the reply. I have triped knox so how can i take it in for a service? Could it be anything else apart from a hardware fault?? Thanks
Sent from my SM-N9005 using Tapatalk

Still trying to find out if this is a hardware issue or softwear. Any tips guys?
Sent from my SM-N9005 using Tapatalk

Well, if it will be a real problem than you should still take it into service, maybe that guy will forget to check the knox.

I'm starting to notice that I'm not getting no power downs when the charging lead is pluged in the phone.
Might it be a battery issue? If so how much does one cost for a note 3?
Sent from my SM-N9005 using Tapatalk

Bump
Sent from my SM-N9005 using Tapatalk

I had the same problem with my n7100 a few months ago.
the problem was, that one of the 4 battery contacts was a bit dirty (dont ask how this happened :silly, so a hard (or less hard) shake of the phone could interrupt the contact for a moment and the phone restarted.
I know its unlikely, but better check it before sendind it to the service

Yes it's working fine now for a few days....got a tooth pick and cleaned the contacts and everything is all fine.
Going to order another battery for backup also.
Thanks guys.
Sent from my SM-N9005 using Tapatalk

Taffwales said:
Yes it's working fine now for a few days....got a tooth pick and cleaned the contacts and everything is all fine.
Going to order another battery for backup also.
Thanks guys.
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Sometimes it's the easiest things

It's sure is......Now it's finding out what would be a good Rom to flash on it.
Sent from my SM-N9005 using Tapatalk

Related

Battery life suddenly gone crazy

Been this way past two days.
any ideas?
What kernel and what ROM you running? Also any new apps, battery managers, downloads, etc out of the ordinary?
Sent from my SM-N900T using Tapatalk
Airplane mode
Wait 1m
Power off
Pull battery
Wait 1m
Reinsert battery
Boot recovery (no normal boot in between ! )
Clear cache
Reboot
-----
Also disable location services in google setting app
hit 'thanks' if i helped you
SM-N9005 DBT-DMJ7 0x0
XDA Developers 4 premium app
Killberty said:
Airplane mode
Wait 1m
Power off
Pull battery
Wait 1m
Reinsert battery
Boot recovery (no normal boot in between ! )
Clear cache
Reboot
-----
Also disable location services in google setting app
hit 'thanks' if i helped you
SM-N9005 DBT-DMJ7 0x0
XDA Developers 4 premium app
Click to expand...
Click to collapse
Is this a permanent fix of some kind?
Sent from my SM-N900W8 using XDA Premium 4 mobile app
---------- Post added at 07:48 AM ---------- Previous post was at 07:48 AM ----------
KarimSalloum said:
Been this way past two days.
any ideas?
Click to expand...
Click to collapse
Get bbs app or wakelock detector in play store, will tell u the problem
For me, yes it is a permanent fix
hit 'thanks' if i helped you
SM-N9005 DBT-DMJ7 0x0
XDA Developers 4 premium app
Battery Life after MJ7 firmware has been TERRIBLE! Simple!
KarimSalloum said:
Been this way past two days.
any ideas?
Click to expand...
Click to collapse
You can try many things, also the remove battery if you want to do that, its a firmware fault, I even tryed running total stock for some days after full recovery, it comes back. Only fix i have so far is restart the phone a few times untill it works again, then it can work for few hours or sometimes a day. resetting cache moving battery etc. shouldn't help at all. atleast I dont see the logic in removing the battery if you wipe cache...? Someone please explain what els you achieve!
Yeah I'm having the same " android os" wakelock since the latest mj7 update and it's killing the battery! Reboots didn't help much, I'll try the advice above for clearing cache and if it works
Sent from my SM-N9005 using XDA Premium 4 mobile app
I have tried many many things, nothing has worked so far. It just has to be the ROM.
This helped me:
http://forum.xda-developers.com/showpost.php?p=47213318&postcount=71
Never unplugging the charger while screen off and no problem since... Please try and report!
onyxogen said:
This helped me:
http://forum.xda-developers.com/showpost.php?p=47213318&postcount=71
Never unplugging the charger while screen off and no problem since... Please try and report!
Click to expand...
Click to collapse
Have u tried it yourself?
Sent from my SM-N9005 using XDA Premium 4 mobile app
Goodm7sn said:
Have u tried it yourself?
Sent from my SM-N9005 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Yes I tried it. like I said, it helped me!
onyxogen said:
This helped me:
http://forum.xda-developers.com/showpost.php?p=47213318&postcount=71
Never unplugging the charger while screen off and no problem since... Please try and report!
Click to expand...
Click to collapse
For how long have it worked for you? I tried this thing aswel, still ended in a no deep sleep state.. :/
What @onyxogen said makes sense now. I know that on one or 2 occasions, my battery lasted normally and i think i might have started using it right out of the socket. I mean start using it after battery full while still plugged in then disconnect later. But i did it without knowing then... I will try for real now and know for sure.
stanley08 said:
What @onyxogen said makes sense now. I know that on one or 2 occasions, my battery lasted normally and i think i might have started using it right out of the socket. I mean start using it after battery full while still plugged in then disconnect later. But i did it without knowing then... I will try for real now and know for sure.
Click to expand...
Click to collapse
Well, it doesn't hurt to try. I'll give it a go tomorrow morning
Sent from my SAMSUNG-SM-N900A using xda app-developers app
For me the Problem was a fake S-View Cover with fake Chip. Removing it, stops the Android OS drain for me.
Rivendel said:
For me the Problem was a fake S-View Cover with fake Chip. Removing it, stops the Android OS drain for me.
Click to expand...
Click to collapse
Mate I'm pretty sure that's not the main issue for me... As I never used cover
slimslim said:
Well, it doesn't hurt to try. I'll give it a go tomorrow morning
Sent from my SAMSUNG-SM-N900A using xda app-developers app
Click to expand...
Click to collapse
I did. Doesn't work
I posted this in many posts so far, because I am ****ing mad about no quick optimization for this "so called flagship"! The no deep sleep problem is ****ing huge, they must install something into the kernel that can regonize what apps have multiple uses of alarm_manager or something!
In the end, this problem is nothing we can do anything about. As it is samsung/android that have made the problem. I even tried this restart phone and unplug from charger while screen are on... My phone since 6hours ago have had 2m and 37s deep sleep..
I think it is so poor, that we pay so much for a phone and then the only thing samsung do is just put their trust in having android kitkat fixing it, instead of being proactive....
zipn said:
For how long have it worked for you? I tried this thing aswel, still ended in a no deep sleep state.. :/
Click to expand...
Click to collapse
This would only work if it would be the only reason that stops your phone from entering deep sleep of course, so it's far from sure that it works.
For me it works since 2 weeks, but I have to repeat it every time I disconnect. Sometimes I have longer periods of no deep sleep but if I just plug it out while charging than the bug appears every time if I remember correctly.
It's an partly known android bug, since 4.1 I believe.
Note that you have to use the display for a while before unplugging!
onyxogen said:
This would only work if it would be the only reason that stops your phone from entering deep sleep of course, so it's far from sure that it works.
For me it works since 2 weeks, but I have to repeat it every time I disconnect. Sometimes I have longer periods of no deep sleep but if I just plug it out while charging than the bug appears every time if I remember correctly.
It's an partly known android bug, since 4.1 I believe.
Note that you have to use the display for a while before unplugging!
Click to expand...
Click to collapse
Hmm gotta try use my phone for scrolling forums and mail in the morning then.. didnt know that I would have to use it for some time first.. It actually sounds like that could be the problem, if you say its a well known bug since 4.1... because everyday i do get it fixed after a few resets and then it works rest of the day... untill the next day when its been charged..

episodes of screen unresponsiveness after updating to kitkat

Hi everyone
So I update my N9005 to the official polish kitkat firmware and I've been experiencing episodes of screen unresponsiveness very often. Anybody else has this problem? Anybody managed to fix it?
P.S I'm aware of the counterfeit/unoriginal s-view flip covers issue which I'm having as well but the thread isn't about it.
Hope someone has a solution.
nader9999 said:
Hi everyone
So I update my N9005 to the official polish kitkat firmware and I've been experiencing episodes of screen unresponsiveness very often. Anybody else has this problem? Anybody managed to fix it?
P.S I'm aware of the counterfeit/unoriginal s-view flip covers issue which I'm having as well but the thread isn't about it.
Hope someone has a solution.
Click to expand...
Click to collapse
Hello, I have been experiencing moments of "freezing" or unresponsiveness as well.
For me, it seemed to be due to chrome or using power saving mode. (People in another forum were blaming their droid maxxs freezing problem on chrome) I disabled chrome and disabled power saving mode.
Then I started using opera. I experienced another moment of unresponsiveness using opera without the power saving mode.
I was thinking back to the first times that it happened and it seemed to be paired to the wifi download and upload symbol being active in upload and download activity.
I know that correlation does not mean causation, but I think it is worth exploring if the network activity is causing it to somehow hang.
This bizzar occurance made me perform a factory wipe leading to another round of issues involving processing err_0000, but that is another story; sadly, it didn't even fix the issue.
OP, are you still experiencing the moments of unresponsiveness? If you are, have you noticed the events that are correlated with the event?
Has anybody else experienced this or found a remedy?
It could be one of the apps from the play store that is not playing nice with kitkat, but due to the multitude of other issues, I'd say it is a kitkat or touchwiz flaw.
Thanks for any help.
Lago
nader9999 said:
Hi everyone
So I update my N9005 to the official polish kitkat firmware and I've been experiencing episodes of screen unresponsiveness very often. Anybody else has this problem? Anybody managed to fix it?
P.S I'm aware of the counterfeit/unoriginal s-view flip covers issue which I'm having as well but the thread isn't about it.
Hope someone has a solution.
Click to expand...
Click to collapse
I had an issue with screen not responding sometimes .....I figured out it was due to the flip case (original by Samsung). Although lately I haven't experienced that either.
Try using the original non flip case and see if you still have the issue.
Sent from my SM-N9005 using XDA Premium 4 mobile app
pac-mannan said:
Try using the original non flip case and see if you still have the issue.
Click to expand...
Click to collapse
I have never had a s-view flip case on mine. I use holster iblason case that has no interaction with the screen.
This only started for me once I upgraded to kitkat.
Sent from my SM-N900 using xda app-developers app
lagoboss said:
I have never had a s-view flip case on mine. I use holster iblason case that has no interaction with the screen.
This only started for me once I upgraded to kitkat.
Sent from my SM-N900 using xda app-developers app
Click to expand...
Click to collapse
Hmmm...no idea then...try flashing it again?
Maybe that will help
Sent from my SM-N9005 using XDA Premium 4 mobile app
pac-mannan said:
Hmmm...no idea then...try flashing it again?
Maybe that will help
Sent from my SM-N9005 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
If your phone isnt hanging up and freezing, that gives me hope. I'll gsm reset, clear the cache and then flash.
Thanks
Sent from my SM-N900 using xda app-developers app
pac-mannan said:
Hmmm...no idea then...try flashing it again?
Maybe that will help
Sent from my SM-N9005 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I just cleared the cache, factory wiped, and installed the Russian update N900XXUDNC4 and so far, the phone is a lot smoother. No hangups in the browser yet, but time will tell lol.
It is annoying setting up the phone like new lol. I'll update the post as to if I have moments of freezing or the screen becoming unresponsive.
Sent from my SM-N900 using xda app-developers app
Cheers mate..do tell me how the battery is..if its good I might flash Russian as well ,currently have but flashed
Sent from my SM-N9005 using XDA Premium 4 mobile app
Had this problem too, as well as lots of lag. Reflashed and did a factory reset. Took care of both.
Sent from my SM-N900W8 using xda app-developers app
Battery life is looking good. Power Saving off, bluetooth on and connected to my smart watch.
I made one short call. I don't talk on the phone that much. I mostly use it for Internet browsing, music, and instant messaging/texting. I'll update on Tuesday when I have a full day at school.
Keep in mind though that the n9005 is the lte version. I have a n900, the non lte international variant; our battery life may be different.
Edit: 4/20/2014 same charge 70% 1 day 6 hours bluetooth, wifi, gps, and 1 Gmail account in sync.
Sent from my SM-N900 using xda app-developers app
Even I experienced the same. My phone came with Kitkat installed. Freezing happens when a webpage is loading or the time i turn on Sync etc. strange thing is phone seems smooter when power save mode turned on.
I think it may be a problem that was not fixed until the March 31st 2014 KitKat build. I have been using Chrome heavily since I installed the most recent official rom; I have not experienced any lag or hanging system wide or in the browser. It reminds me of 4.3.
When I wiped and reinstalled the previous rom, I noticed the lag and unresponsiveness right away.
I'm going to use the browser heavily next week. If I have no issues, I think it may be safe to say that the bug was fixed in the latest kitkat with March 31st 2014 build date.
People with lag, do you have the lte variant or the regular SM-N900? I'm starting to think only the SM-N900 are being impacted by sour Sammy updates.
And if you guys wipe your phones, make sure to turn reactivation lock off because it could cause an error that will not recognize your real Sammy account and password. This phone has become stressful; I'm not updating it again lol
Sent from my SM-N900 using xda app-developers app
I just experienced another moment of unresponsiveness using the google search box within the chrome app running DNC4 :/ Going to try the latest Russian KitKat
Sent from my SM-N900 using XDA Free mobile app

[Q] Galaxy S5 button not working

hi guyz. So I just bought a Galaxy S5 tested it with water and everyhing seemed alright. Soi installed many apps. among them gravity screen and greenify. dunno wtf happened but my power button refused work and skmetimes just sometimes. It worked but sending me straight to the power menu(restart.shut dowwn.etc.) this seemed rare so I took batery off. it powered on as i put the batt in alone. but nothing worked. uninstalled the 2 apps as i said but not even that worked. so i had to try to hit restart like 3 times via power menu. because power button didnt dont want to work. and now it works.... perfectly..wtffff
u guys think it is water damage?
defective S5?
the 2 apps caused this problem(aka) software issue?
thanks
Sent from my SM-G900H using xda app-developers app
fenchai said:
hi guyz. So I just bought a Galaxy S5 tested it with water and everyhing seemed alright. Soi installed many apps. among them gravity screen and greenify. dunno wtf happened but my power button refused work and skmetimes just sometimes. It worked but sending me straight to the power menu(restart.shut dowwn.etc.) this seemed rare so I took batery off. it powered on as i put the batt in alone. but nothing worked. uninstalled the 2 apps as i said but not even that worked. so i had to try to hit restart like 3 times via power menu. because power button didnt dont want to work. and now it works.... perfectly..wtffff
u guys think it is water damage?
defective S5?
the 2 apps caused this problem(aka) software issue?
thanks
Sent from my SM-G900H using xda app-developers app
Click to expand...
Click to collapse
Might be software problem from all that. I'd try factory reset to stock to see if works. If it doesn't, then hardware issue. If it does work, then something you did or installed.
fenchai said:
hi guyz. So I just bought a Galaxy S5 tested it with water and everyhing seemed alright. Soi installed many apps. among them gravity screen and greenify. dunno wtf happened but my power button refused work and skmetimes just sometimes. It worked but sending me straight to the power menu(restart.shut dowwn.etc.) this seemed rare so I took batery off. it powered on as i put the batt in alone. but nothing worked. uninstalled the 2 apps as i said but not even that worked. so i had to try to hit restart like 3 times via power menu. because power button didnt dont want to work. and now it works.... perfectly..wtffff
u guys think it is water damage?
defective S5?
the 2 apps caused this problem(aka) software issue?
thanks
Sent from my SM-G900H using xda app-developers app
Click to expand...
Click to collapse
Are you using ART or Dalvik? I've noticed on mine (completely stock, never been wet etc) that under ART the sleep/wake button sometimes does not work. Absolutely fine with Dalvik though.
the issue is so strange but after i uninstalled gravity screen and greenify and restarted twice power button works as well as never.so... I hate this issue.
Sent from my SM-G900H using xda app-developers app
vanButton said:
Are you using ART or Dalvik? I've noticed on mine (completely stock, never been wet etc) that under ART the sleep/wake button sometimes does not work. Absolutely fine with Dalvik though.
Click to expand...
Click to collapse
well Im still using dalvik. Art is still laggy and unresponsive for me. never tried on this device doe. but after i uninstalled those 2 apps and redtarted everything works fine.
I just dont get why greenify or screen gravity would interfere in power button...
Sent from my SM-G900H using xda app-developers app
I use gravity screen and greenify, too, without any problems.
Gesendet von meinem SM-G900F mit Tapatalk
sframbo said:
I use gravity screen and greenify, too, without any problems.
Gesendet von meinem SM-G900F mit Tapatalk
Click to expand...
Click to collapse
yioh. you have it rooted? I still dont want to root it due to knox and warranty. I want to know what caused this issue first.
Sent from my SM-G900H using xda app-developers app
fenchai said:
yioh. you have it rooted? I still dont want to root it due to knox and warranty. I want to know what caused this issue first.
Click to expand...
Click to collapse
Of course, i have rooted I kept three days and that was it.
sframbo said:
Of course, i have rooted I kept three days and that was it.
Click to expand...
Click to collapse
how did you root it without touching knox?
Sent from my SM-G900H using xda app-developers app
knox is touched and 0x1. First SuperSU asked to disable knox and i said no. A few days later i provoked the dialogue again and said yes. The power button works definitely flawlessly. I use the payed version of both apps.
sframbo said:
knox is touched and 0x1. First SuperSU asked to disable knox and i said no. A few days later i provoked the dialogue again and said yes. The power button works definitely flawlessly. I use the payed version of both apps.
Click to expand...
Click to collapse
wow. did the count down reduce to 0x0? well the download mode will still appear that you flashed.
right now my phone works fine. lets see if anything happens after a week. I will report.
Sent from my SM-G900H using xda app-developers app

S4 no sound

okay so im going to start from scratch, my s4 has randomly started giving me no sound, ive had it tested and all my components are good so it has to be software.
i have flashed multiple roms, modems and wifi fix
but im willing to give anything a go just let me know!
beginning to really stress me out! i have included a pic of my current setup, cheers and thanks for the help!
does no one have a clue on this?
i was thinking maybe wait for the lollipop update and it may sort itself out?
or flash another stock rom and gsm modem only?
i have already triggered knox so not really worried about the method, anything would be of great help!
danay said:
does no one have a clue on this?
i was thinking maybe wait for the lollipop update and it may sort itself out?
or flash another stock rom and gsm modem only?
i have already triggered knox so not really worried about the method, anything would be of great help!
Click to expand...
Click to collapse
Add more screenshots about the APP.
Hope this helps
Sent from my GT-I9505 using XDA Free mobile app
Does this help?
Sent from my GT-I9505 using XDA Free mobile app
danay said:
Does this help?
Sent from my GT-I9505 using XDA Free mobile app
Click to expand...
Click to collapse
Where did you get that Bootloader? shows on your screenshot? xxegng8? Its supposed to be UGNG8 , Try flashing the bootloader UGNG8
Appreciate that repulsa, I can't seem to find any downloads here for bootloaders?
Sent from my GT-I9505 using XDA Free mobile app
danay said:
Appreciate that repulsa, I can't seem to find any downloads here for bootloaders?
Sent from my GT-I9505 using XDA Free mobile app
Click to expand...
Click to collapse
Click Here Turn off your phone (Wait atleast 10 sec) boot into downloadmode , Open odin / Put the file in BL / Connect the cable and flash away.
ill just give that a go !
wow, so far so good repulsa! finally got to the bottom of it something so simple!
thanks a bunch!!!
danay said:
wow, so far so good repulsa! finally got to the bottom of it something so simple!
thanks a bunch!!!
Click to expand...
Click to collapse
Lucky you I hope everything is working fine now , Anyways im going to bed Have a nice weekend
That deserved 3 thanks! You know how long I've been chasing my tail on this!
Thanks again
Sent from my GT-I9505 using XDA Free mobile app
Oop, seems like it was short lived, sounds dropped out again
Sent from my GT-I9505 using XDA Free mobile app
It seems to stay for a short period, drop out then return with a restart, any ideas?
Sent from my GT-I9505 using XDA Free mobile app
danay said:
Oop, seems like it was short lived, sounds dropped out again
Sent from my GT-I9505 using XDA Free mobile app
Click to expand...
Click to collapse
Im not sure what's goin on . It might be a Hardware issue? Try pulling the battery out / factory reset/ wipe data in recovery . If its still.doing the same issue . Wait And Let see what firmware @Joku1981 will give you . It might fix this problem . Anyways Goodnite for now .
Yes sorry to disturb you, I've had my device tested it's been going on that long it all came back okay :/ thanks a lot it's definitely improved!
Sent from my GT-I9505 using XDA Free mobile app
factory reset no luck, cache wipe no luck, battery pull no luck, i was thinking try flash a stock rom? have a feeling ive got a few duff ones, any recomendations?
Whether it helps or not apart from no sound, videos play in slow motion, battery when unplugged from fully charge drops to around 80% and sometimes when the phone is booted it boots with no signal and a black top bar, before restarting again normally
Sent from my GT-I9505 using XDA Free mobile app

Over heat issue

Hi guys, I bought the phone from someone with this issue. It gets hot very fast when I use it, also when in charge, so much that sometimes I can't touch it. The battery also drains very fast when it's in use. I tried every solution on Google I could find but no luck. It also won't power on without the charger being in even when battery is fully charged. I rooted it now and want to know if I install cyanogenmod Wil maybe resolve this issue? Thanks.
Sent from my SM-N910C using Tapatalk
Have you tried upgrading the firmware to the latest version and performing a hard factory reset afterwards?
Yes I did.
Sent from my SM-N910C using Tapatalk
danny2g said:
Yes I did.
Sent from my SM-N910C using Tapatalk
Click to expand...
Click to collapse
Have you tried a different battery?
Yes I have 2
Sent from my SM-N910C using Tapatalk
That is strange as the only time my N910C uses allot of power is when I play 3D intensive games on it or use to work on heavy tasks.
Could this be the motherboard that's faulty or something?
Sent from my SM-N910C using Tapatalk
danny2g said:
Could this be the motherboard that's faulty or something?
Sent from my SM-N910C using Tapatalk
Click to expand...
Click to collapse
I also got my phone second hand from a guy and my phone also gets hot when making intensive tasks. I don't usually play games. But it gets hot when using location(Tinder). Is this related to ROM. I don't think it has to do with the motherboard although you should go and see a service!! Let me know what were your results. Thanks
Yeah, I'd take it to a Samsung Service Center and let them check it out. It could be the battery cable is loose.
So a custom rom won't fix?
Sent from my SM-N910C using Tapatalk
danny2g said:
So a custom rom won't fix?
Sent from my SM-N910C using Tapatalk
Click to expand...
Click to collapse
I also had the same issue when i first bought my phone 4 month ago but after the latest update the over heat problem is gone. Try to flash the stock rom through odin. Battery problem your facing it could be from the battery calibration try to drain out the battery let drain fully if your phone switched off by itself try to power it on again for many times as possible then charge your phone while it's switched off for 2 hrs power on your phone and charge it again for 30 min hopefully this will resolve the battery calibration issue.
Sent from my SM-N910G using Tapatalk
Try Custom Rom
danny2g said:
So a custom rom won't fix?
Sent from my SM-N910C using Tapatalk
Click to expand...
Click to collapse
You should try it out. When i a got my SM-N910F, it was a real hot headed one (on Stock 5.0.1).
After flashing a custom rom, the tempratures dropped significantly.
Currently iam running a custom kernel and undervoltet slightly. The Phone is running cool and stable.
danny2g said:
So a custom rom won't fix?
Sent from my SM-N910C using Tapatalk
Click to expand...
Click to collapse
Depends. Only in case your problem is software related. In case of an hardware defect, a custom rom won't change anything. You should monitor your GPU and CPU usage of your device. You can use apps like cpu z to measure it. When the clock speed of you CPU is constantly high even with the simplest tasks, you can consider rooting your device, flashing a custom rom/kernel and try to reduce the clock speed. This may help keeping the temperature in check but won't do anything about defective hardware.
But, as you said, this problem persists even with stock firmware (maybe the guy you bought it from flashed the wrong firmware.....) this could only have 3 reasons: 1. defective hardware, 2. defective software/wrong firmware, 3. Some of your apps in the background is going crazy (try to use better battery stats or wakelock detector for that).
Good luck.
Tried to install cyanogenmod but I get error dm vertify verification failed with reboot. I Google it and tried everything but doesn't looked like there's a fix for this. Anyone had similar issue or have a solution for this pls? Thanks.
Sent from my SM-N910C using Tapatalk
Try a new battery

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