Develop Bugs

Phone keeps shutting off

Over the past couple weeks my sons phone started to have a couple issues. These are the first issues we've experienced since we got the phone when it was first released. The first two problems were that it started dying real fast and I mean in a couple hours with zero usage. Before the problem started we were getting 15-20 hours with moderate usage. The second issue was that at any point in time it would shut down and it would take a charger to be plugged in to restart it (even though it wasn't dying).
When this started it was completely stock. Since then here are the steps I've taken...
1) checked battery stats, Android OS was always on top at around 70%. No rogue apps
2) loaded CPU Spy, the phone seemed to be sleeping normally
3) remove sd card
4) shut off wifi
5) factory reset (didn't stop the issues)
6) went into the stock recovery and wiped data and cache (I've since heard this may cause an issue in the stock build)
7) loaded a custom recovery (Agat)
8) loaded CM10 (this seems to have fixed the problem with it dying quickly)
And it just shut off out of no where. Is there something else I can try?

wburbage said:
Over the past couple weeks my sons phone started to have a couple issues. These are the first issues we've experienced since we got the phone when it was first released. The first two problems were that it started dying real fast and I mean in a couple hours with zero usage. Before the problem started we were getting 15-20 hours with moderate usage. The second issue was that at any point in time it would shut down and it would take a charger to be plugged in to restart it (even though it wasn't dying).
When this started it was completely stock. Since then here are the steps I've taken...
1) checked battery stats, Android OS was always on top at around 70%. No rogue apps
2) loaded CPU Spy, the phone seemed to be sleeping normally
3) remove sd card
4) shut off wifi
5) factory reset (didn't stop the issues)
6) went into the stock recovery and wiped data and cache (I've since heard this may cause an issue in the stock build)
7) loaded a custom recovery (Agat)
8) loaded CM10 (this seems to have fixed the problem with it dying quickly)
And it just shut off out of no where. Is there something else I can try?
Click to expand...
Click to collapse
Have you checked the battery. Take it out and place on flat surface and spin it if it spins get a new battery.
Sent from my SPH-D710 using Tapatalk 2

Lol, embarrassingly that's the one thing I haven't done.
Sent from my Nexus 7 using Tapatalk 2

Maybe I'm wrong but I read that he flashed Agats kernel then flashed CM 10. I believe you can't use a TW based Kernel on CM builds? That may cause serious problems.
Sent from my SPH-D710 using xda premium

He was having issues on stock. Then he loaded up custom roms.
But yeah check the battery that's what the quick dying might be.
Mines started dying even tho it said it had 70-80% battery left. Bought a new battery problem solved.
Sent from my SPH-D710 using xda app-developers app

BIGSAMDA1ST said:
Maybe I'm wrong but I read that he flashed Agats kernel then flashed CM 10. I believe you can't use a TW based Kernel on CM builds? That may cause serious problems.
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
I'm going to head out and pick up a new battery once the Sprint store open this morning. Then I'm planning on bringing it completely back to stock and hopefully that takes care of it.
My wife is threatening me that if we need to get him a new phone that she'll give him her iphone 4 and buy an iphone 5 for herself. I need to make sure I get this phone back up and running properly so that doesn't happen. lol

I went to the Sprint store this morning and he didn't even have to test the battery to know it's defective. I guess batteries get swollen at a certain point and from that point on it will hold less and less of a charge and start shutting down spontaneously as it gets worse. Needless to say I have another Samsung battery on order and will be getting this back to as stock as I can.
Thanks for your help and the headslap!

wburbage said:
I went to the Sprint store this morning and he didn't even have to test the battery to know it's defective. I guess batteries get swollen at a certain point and from that point on it will hold less and less of a charge and start shutting down spontaneously as it gets worse. Needless to say I have another Samsung battery on order and will be getting this back to as stock as I can.
Thanks for your help and the headslap!
Click to expand...
Click to collapse
You know you can hit the thanks button they are there for a reason
Sent from my SPH-D710 using Tapatalk 2

[Q] Battery Depleting Quickly

I have had my Note 8 for a couple of months and just recently I have been having battery problems. I restored the Note 8 to factory settings (just to be sure) and am still having the same problem.
It seems that when I watch videos or play any games the battery depletes extremely quickly e.g Its 80%, I start to play the game and within 3-5 minutes the battery is 30%. I play again and its 5% and the screen dims (which is also a pain in the ....) I realise that Games and Apps use a lot of power but surely not this much.
I have looked around for battery calibration instructions and apps but are a bit dubious to try them as I have read that you can deplete the battery totally and the device then wont charge.
Just wondered if anybody else has had the same problem.
Thanks.

My note has a great battery life. For this situation I would look in the battery menu for any apps not closing correctly thus sucking battery. Remember to dis activate GPS, Bluetooth and data when not using them. Check the screen brightness is 50% or less. Automatic brightness should be fine also.
here's a lot of info related to batteries. I'm sure you will find it usefull
http://batteryuniversity.com/

Don't waste time with calibration. Sounds like the battery ifs failing or dying, either way it's bad.
Sent from my SGH-T889 using Tapatalk 4

I usually have Bluetooth and GPS turned off and have the screen on Auto Brightness. I also restored to factory and the problem still persists.
One strange thing is that when I charge it from 10% it takes about 50 minutes to get to 100%. I thought that was a bit quick. The battery must be reporting the wrong charge to the OS. I wish they had user replaceable batteries in this thing although its probably not practical.
I will give Samsung a call. Cannot beleive it has happened now as I am off on holiday soon to the US and wanted to use it there.
Thanks.

chas0001 said:
I usually have Bluetooth and GPS turned off and have the screen on Auto Brightness. I also restored to factory and the problem still persists.
One strange thing is that when I charge it from 10% it takes about 50 minutes to get to 100%. I thought that was a bit quick. The battery must be reporting the wrong charge to the OS. I wish they had user replaceable batteries in this thing although its probably not practical.
I will give Samsung a call. Cannot beleive it has happened now as I am off on holiday soon to the US and wanted to use it there.
Thanks.
Click to expand...
Click to collapse
Hi, I've had the same issue. I sent the device for service under warranty and they could not find a fault. They only reflashed the firmware.
Its been working fine since I got it back. I updated to 4.2.2 and its working just fine.
Sent from my GT-N5100 using Tapatalk 4

batttery draining extremely fast
JCUK89 said:
Hi, I've had the same issue. I sent the device for service under warranty and they could not find a fault. They only reflashed the firmware.
Its been working fine since I got it back. I updated to 4.2.2 and its working just fine.
Sent from my GT-N5100 using Tapatalk 4
Click to expand...
Click to collapse
same with me chas0001, and JCUK89, my situation is actually identical to chas0001, but my device is like a mth old now, i received it on august 5th 2013,
so its basically been used for jus over a mth now. and i barely use it, maybe 3 hrs a day, most days less than 1 hr, constant use.
i dont kno, can anyone help. on xda developers. ??

I called Amazon.co.uk (where I bought it from) and they agreed to replace it for me. Its was definitely faulty and unusable. I kept reading about people with the similar problems and so eventually decided to not get a replacement but a refund.
Its a shame really. I really liked the device but I need something more reliable. I also don't care for Samsung with their constantly delayed OS updates. 4.1.2 for a 'flagship' device. Surely if they get rid of that Touchwiz crap they can release timely updates. You never know even my Note 2 may get an OS update this year!
Just went out and bought a Nexus 7 (2013). NOW...what to do with those 5 Galaxy Note 8 cases

jramna1 said:
same with me chas0001, and JCUK89, my situation is actually identical to chas0001, but my device is like a mth old now, i received it on august 5th 2013,
so its basically been used for jus over a mth now. and i barely use it, maybe 3 hrs a day, most days less than 1 hr, constant use.
i dont kno, can anyone help. on xda developers. ??
Click to expand...
Click to collapse
I would see of you can get it exchanged (assuming you still want to keep the device).

Disaster suddenly

Hi all: I have been posting in the CM11 ROM for this device but I figured I would post my issues here and see if anyone has any insight or experiences.
I was on CM11 for 4 days with stability, speed and life was great. Last night I randomly got a reboot when looking at twitter. Fine, no big deal. 2 minutes later it happened again. Odd. I went into the play store and then it froze. I had to research and found out how to reboot it. Once rebooted, it would restart again. So, I went into TWRP, wiped Everything and then refreshed the ROM. Within 1 minute it froze again.
I flashed Stock and sure enough it froze on me. Noe I am annoyed and went to bed and figured I would deal with it this am. I plugged it in last night under 10% battery. Woke up 8 hours later and its at 14%. 2 hours since and its now at 17%. Clearly something is wrong.
Full disclosure---i bought a best buy geek squad refurbished unit and have done so many times with tablets with no problems. I am still within my 45 day return window and will probably just exchange for a new one since the refurbished price is the same as it was. Sadly, I wish they would give me a new one for the black friday price.
Has anyone had such experiences or have a clue what went wrong? Thanks

How did you flash the ROM? Tell each steps on how you flashed it. Did you mess with the CPU clock speed or anything? Did you also have any battery problems readings before flashing? I did a dirty flash of cm11 in which led to problems later, so I'm now on stock rooted and still works fine with no freezes. Probably tarp crashed? Happened to me.

I rooted via odin. I them used twrp manager to get the recovery and did a total clean flash. Wiped everything including system. NO I did not have any battery issues nor did I mess with cpu clock speed ( don't even know how ). All I did was use xposed to try the mutliwindow solution and downloaded lux and a material theme. Nothing out of the ordinary I don't think.
Sent from my t mobile note 4 or Tab s

Sudbury78 said:
I rooted via odin. I them used twrp manager to get the recovery and did a total clean flash. Wiped everything including system. NO I did not have any battery issues nor did I mess with cpu clock speed ( don't even know how ). All I did was use xposed to try the mutliwindow solution and downloaded lux and a material theme. Nothing out of the ordinary I don't think.
Sent from my t mobile note 4 or Tab s
Click to expand...
Click to collapse
Either the battery is bad or could be something with the software. The only time when mine reboots is when I use to Much ram and it freezes. Other than that no problems.

I plugged it into another outlet. The outlet I always use charges me iPad and note 4 without a problem. I left for an hour and sure enough I got home and the tablet was at 100%. Yay. I started downloading my apps and noticed while still plugged in, the battery was at 95%. Odd. I took out the charger and Bam, rebooted. Off to best buy.

Wow it restarted and now shows 7 percent. I'll let you know what bb says.
Sent from my t mobile note 4 or Tab s

Similar experience
I had a similar experience with my 2012 Nexus 7,it turned out that the connections between the charging port, battery and device were all faulty. They weren't soldered together properly when the device was manufactured (not as rare a condition as we are lead to believe either, regardless of manufacturer). I was lucky the I was able to take the device apart to check the problem without leaving any evidence that I had opened it, and I was able to exchange it. So from my experience, that kind of error always appears to relate to some form of battery issue. Also had it happen to me with a Galaxy S4, however it wasn't anything to do with the device itself, it was damaged connections on the battery.

LG g3 restart loop

I've had my g3 for 2.3 years, and it suddenly went into boot loop one day after charging the phone. The boot loops for around 3 or 4 times then stopped and stayed shut down, got it to repair shop yet they claimed that it wasn't hardware issue but software. I doubt that as I've updated my g3 to android 6.0 last October and has been working fine since. However, just to note that I was charging with a broken cable last time before it went into this boot loop. What's the problem with the phone and how can I retrieve my stuff as i haven't backed up yet. Is this problem fixable as I am trying to avoid factory reset and data wiping at all costs.

I had the same problem , it happend suddenly 2 days ago and i am trying to solve this stupid problem but so far no solution.
I upgrade it to 6.0 then downgrade 5.0 tried different versions but no solution.
Wierd thing is just started from nowhere.
Kind of Cpu and heating related but not sure what can be the solution cuz when the phone is colder not restarting that much like warmer.

1sin1 said:
I had the same problem , it happend suddenly 2 days ago and i am trying to solve this stupid problem but so far no solution.
I upgrade it to 6.0 then downgrade 5.0 tried different versions but no solution.
Wierd thing is just started from nowhere.
Kind of Cpu and heating related but not sure what can be the solution cuz when the phone is colder not restarting that much like warmer.
Click to expand...
Click to collapse
Have you tried new battery?
MarineSniper said:
I've had my g3 for 2.3 years, and it suddenly went into boot loop one day after charging the phone. The boot loops for around 3 or 4 times then stopped and stayed shut down, got it to repair shop yet they claimed that it wasn't hardware issue but software. I doubt that as I've updated my g3 to android 6.0 last October and has been working fine since. However, just to note that I was charging with a broken cable last time before it went into this boot loop. What's the problem with the phone and how can I retrieve my stuff as i haven't backed up yet. Is this problem fixable as I am trying to avoid factory reset and data wiping at all costs.
Click to expand...
Click to collapse
Are you able to use your phone while plugged in charger?
Sent from my LG-D858HK using Tapatalk

MirzaAwais said:
Have you tried new battery?
Are you able to use your phone while plugged in charger?
Sent from my LG-D858HK using Tapatalk
Click to expand...
Click to collapse
I haven't tried a new battery, yet I have two batteries, one was the original and other was bought at the same time I got my phone 2 .3 years ago, I have also tried to boot my phone plugged in, and even safe mode, but no success. Both methods only took it into the boot loop.

MirzaAwais said:
Have you tried new battery?
Are you able to use your phone while plugged in charger?
Sent from my LG-D858HK using Tapatalk
Click to expand...
Click to collapse
First thing i bought new battery but didnt help at all.
It is most probably cpu heat sink problem , that heat sink doesnt work anymore i guess . Now phone works like normal with low cpu freq. but a bit slower ..
One day i will try to change heat sink on cpu but dont know when

1sin1 said:
First thing i bought new battery but didnt help at all.
It is most probably cpu heat sink problem , that heat sink doesnt work anymore i guess . Now phone works like normal with low cpu freq. but a bit slower ..
One day i will try to change heat sink on cpu but dont know when
Click to expand...
Click to collapse
So do you have similar problem? and how did you get it to work at low cpu frequency, I don't mind it being a bit slower as long as I get back to my data on my phone.

MarineSniper said:
So do you have similar problem? and how did you get it to work at low cpu frequency, I don't mind it being a bit slower as long as I get back to my data on my phone.
Click to expand...
Click to collapse
I have same problem but mine at least opening .. when you can not start the phone , you can not change the freq of cpu.
I did mine with root and app called "no frill cpu"
For starting you can try to put your phone in to freezer 2 or 3 mins (not make super cold) and then start it when it is cold , i managed to use my phone like this around 10 min. so then u can change cpu freq
But today it turn off itself and so far couldnt turn on again ... looks like it gets worse in time..

1sin1 said:
I have same problem but mine at least opening .. when you can not start the phone , you can not change the freq of cpu.
I did mine with root and app called "no frill cpu"
For starting you can try to put your phone in to freezer 2 or 3 mins (not make super cold) and then start it when it is cold , i managed to use my phone like this around 10 min. so then u can change cpu freq
But today it turn off itself and so far couldnt turn on again ... looks like it gets worse in time..
Click to expand...
Click to collapse
Thank you, I will try that method.

MarineSniper said:
Thank you, I will try that method.
Click to expand...
Click to collapse
No problem , tell me if it works.
I just try right now mine and all day it was restarting but i put it in freezer 2 min. and tried and it turn on ..
I am wondering all problems are same from cpu

Few mins. ago i opened up my lg g3 and apply heat sink on cpu chipset and so far it works really better than before
I even tried normal cpu freqs. and it didnt restarted , before using heatsink it was not even possible to see main menu on high freqs.
I was already thinking to buy new phone and spend so much money but then i give it a try and it works. I dont know how long it would help but so far so good.
So i would recommend anyone who has this bootloop problem to try heatsink gel on cpu if still problem continue then you can throw away the phone i guess

Hello, I've battery problem and it keeps restarting by itself, So I decided to buy new battery and with new battery still problem exist and it's random, after 2-3 min usage it restarts.
What should I do ? the phone was working very good a few days ago and that battery was fine until this stupid restarting happened and even I flashed the stock Rom but it didn't fix it.
---------- Post added at 11:33 AM ---------- Previous post was at 11:32 AM ----------
1sin1 said:
Few mins. ago i opened up my lg g3 and apply heat sink on cpu chipset and so far it works really better than before
I even tried normal cpu freqs. and it didnt restarted , before using heatsink it was not even possible to see main menu on high freqs.
I was already thinking to buy new phone and spend so much money but then i give it a try and it works. I dont know how long it would help but so far so good.
So i would recommend anyone who has this bootloop problem to try heatsink gel on cpu if still problem continue then you can throw away the phone i guess
Click to expand...
Click to collapse
How did you use heatsink gel on your cpu ? Is there any video or guide with picture ?

sohilj23 said:
Hello, I've battery problem and it keeps restarting by itself, So I decided to buy new battery and with new battery still problem exist and it's random, after 2-3 min usage it restarts.
What should I do ? the phone was working very good a few days ago and that battery was fine until this stupid restarting happened and even I flashed the stock Rom but it didn't fix it.
---------- Post added at 11:33 AM ---------- Previous post was at 11:32 AM ----------
How did you use heatsink gel on your cpu ? Is there any video or guide with picture ?
Click to expand...
Click to collapse
You can use these videos for doing it
https://www.youtube.com/watch?v=zT2CP-8zmrU&t=316s
https://www.youtube.com/watch?v=PH5wCeootNI

1sin1 said:
You can use these videos for doing it
https://www.youtube.com/watch?v=zT2CP-8zmrU&t=316s
https://www.youtube.com/watch?v=PH5wCeootNI
Click to expand...
Click to collapse
Thanks for videos, I don't know how but I was able to use the phone for 3-4 hours and for test I used Antutu benchmark and I got 53.000 score, When I tried to charge the phone it turned off and I tried to turn it on again it stuck on Lg logo and I heard some noises sound and phone stuck on logo ( sometimes it has boot loop), For now I turned off the phone and tomorrow I'm gonna buy Thermal paste, Hopefully it will fix it.
Did you have the same kinda of problem ? Like phone stuck on Lg logo or it turn off after you try to turn it on .

How do I know if my G3 is dead? It doesn't do **** when I try to turn it on, it just vibrates and stays there. When I connect it to pc, it detects a connection but nothing happens. This happened earlier this morning and it doesn't want to boot back up no matter what I try.

sohilj23 said:
Thanks for videos, I don't know how but I was able to use the phone for 3-4 hours and for test I used Antutu benchmark and I got 53.000 score, When I tried to charge the phone it turned off and I tried to turn it on again it stuck on Lg logo and I heard some noises sound and phone stuck on logo ( sometimes it has boot loop), For now I turned off the phone and tomorrow I'm gonna buy Thermal paste, Hopefully it will fix it.
Did you have the same kinda of problem ? Like phone stuck on Lg logo or it turn off after you try to turn it on .
Click to expand...
Click to collapse
My phone suddenly turned off and repeated to try to turn on itself but sometimes it was just bootlooping on lg logo sometimes just seeing lock screen and turning off . Noise stuff i dont know but mechanically there is nothing to make sound i think so dont know from what but i never had it.
You can try another working battery and software format. If these doesnt work then you can make thermal paste thing .. but if you think it is easy to do thermal thing then just start with that.

There is no point in software changes -- it's a hardware issue. I don't understand why no one checks the forum before asking -- there is a ton information written on here alone, and how to fix the issue.
You need to fix the loose connections and heat problems of the phone.

Thats right. All you have to do is applying a thermal on SoC. It did work for me

SM-G960U reboots when screen turns off (Second phone!?)

I have a T-Mo SM-G960U Galaxy S9 (Non-rooted). It's about 3 months old. It's on the latest firmware (G960USQS3ARG8 - Aug 1st, 2018)
All of the sudden this issue started occurring where the phone turns off when the screen turns off?! About half the time it reboots, but other times it just shuts off. This happens if it's charging or not. Crazy enough, this exact thing happened to me when I first got the S9, and they sent this replacement which I've been using for about 3 months with no issues. What're the chances I'd get two phones that have that have the same issue? Obviously, I'm thinking it's something I've installed, but I didn't make any changes when this problem started happening tonight.
I looked thru the recently updated apps, and nothing looks suspicious.
Also tried turning off all the settings that deal with the screen - blue light filter, Always on display, but nothing seems to help.
Put the phone in safe mode, problem still there.
I wiped the cache partition - no joy.
Took out the SD card, still reboots.
Any ideas?
Thanks

seanvree said:
I have a T-Mo SM-G960U Galaxy S9 (Non-rooted). It's about 3 months old. It's on the latest firmware (G960USQS3ARG8 - Aug 1st, 2018)
All of the sudden this issue started occurring where the phone turns off when the screen turns off?! About half the time it reboots, but other times it just shuts off. This happens if it's charging or not. Crazy enough, this exact thing happened to me when I first got the S9, and they sent this replacement which I've been using for about 3 months with no issues. What're the chances I'd get two phones that have that have the same issue? Obviously, I'm thinking it's something I've installed, but I didn't make any changes when this problem started happening tonight.
I looked thru the recently updated apps, and nothing looks suspicious.
Also tried turning off all the settings that deal with the screen - blue light filter, Always on display, but nothing seems to help.
Put the phone in safe mode, problem still there.
I wiped the cache partition - no joy.
Took out the SD card, still reboots.
Any ideas?
Thanks
Click to expand...
Click to collapse
It's really odd but I have a Galaxy tablet that has done the same thing since I've had it but it has something to do with the wifi. As long as it doesn't switch between my 2.4GHz and 5GHz channels it seldom reboots so I had to split my wifi. It still does the reboot thing but not quite as often. I truthfully don't think that your S9 problem would be that though. If you have the Snapdragon version run an app that will check the core temperature. Maybe there's an app causing it to overheat. I say Snapdragon because there was a discussion where folks were saying their phones with the Exynos chip wouldn't read the Temps.

Tel864 said:
It's really odd but I have a Galaxy tablet that has done the same thing since I've had it but it has something to do with the wifi. As long as it doesn't switch between my 2.4GHz and 5GHz channels it seldom reboots so I had to split my wifi. It still does the reboot thing but not quite as often. I truthfully don't think that your S9 problem would be that though. If you have the Snapdragon version run an app that will check the core temperature. Maybe there's an app causing it to overheat. I say Snapdragon because there was a discussion where folks were saying their phones with the Exynos chip wouldn't read the Temps.
Click to expand...
Click to collapse
@Tel864 thanks for the response. Yeah, don't think the wifi thing is the issue. It's weird because it's immediately turns off when the screen is off, so it's almost like a setting "Turn off device when screen is off"...obviously there is no such setting, but I'm baffled.
I installed a simple temp monitoring app, and it's running about 100F, but spikes up to 115F. I'm not sure if that's hot or not? The device feels cool like it always does.