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battery overheating

hi guys..just got SGS2 and I have battery overheating problem, I saw a lot links on google with that problem but could not find solution...is there a soultion for this kinda big problem?

It's not the battery..it's the phone and processor overheating, working nonstop due to constant updates of apps, searching for signal and so on. It's like a car revved up on traffic.
Try to find out what's actually running on the phone, you can start by reading battery related threads.
Sent from my GT-I9100 using Tapatalk

thank you for your quick tip...for example, all apps are down, i only use browser and after 10 min it is so hot...so there is no any custom rom here that reduces this heat a bit??? seems little bit to much

There has to be something running in the background..could be apps updating, or phone searching for signal(especially if you have wrong modem installed).
I personally check Every apps I installed, and make sure they don't do auto update. Quick check, try to turn off background data, and then auto sync (both in setting). See what happened.
Sent from my GT-I9100 using Tapatalk

To my experience
Using wifi with low signal can caused significant battery heat.
Sent from my GT-I9100 using Tapatalk

Are you using the phone while it's charging, that tends to heat it also

lupipe said:
hi guys..just got SGS2 and I have battery overheating problem, I saw a lot links on google with that problem but could not find solution...is there a soultion for this kinda big problem?
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Relax, there is nothing wrong with your phone. If you play a game or browse flash powered sites, you can cook eggs on the back of your S2! Talk about multitasking phones, who else can cook you breakfast?
Personally, I reduced drastically the heat/power consumption by rooting the phone and removing over 60mb of crap. Now I run at 160mb of memory for services and my battery life easily doubled. It still heats when I charge it for a while... On my old Palm Pre2, after 2hrs of usage my battery was completely drained with similar heat issues.
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yqed said:
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Off-Topic:
That is a lot of wakelocks that maps is giving you there man!

Thanks, never thought about it... How do I fix this?

First: HOW HOT is Your hot ? (for an Eskimo 15 °C is already very hot)
Second: Leave it as it is. EVERY ELECTRICAL DEVICE gets hot when used. The more the hotter.
E.g. Laptop core i7 CPUs are designed for max. Heat of 105° C and my Vaio runs at 85°C when CPU is at 100%.
Sent from my GT-I9100 using XDA App

yqed said:
Thanks, never thought about it... How do I fix this?
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I'm gunna guess........ Latitude? Do you have this enabled? It depends on what you are trying to do, about 25% battery in 5 hours running time isn't too bad or anything, just all of those waking events add up. Also it could be that you are out and about and that your WiFi is constantly searching, that would be my other guess. But maps has already admitted to eating 21% of your charge on your third screenshot

Ya, latitude is on.

Overheating or not?

Upper half of my NEW phone gets uncomfortably hot even by daily activities.
CPU temp while browsing (65 percent brightness) gets to 158F (70C)
After 3 mins of Minions game it gets to 164F.
Idle- 140F
Here is antutu stability test results:
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The battery seems all right, is it always ~35C
Is it normal?

My G2 almost always does that. IMO its normal.

Any more opinions?

Mine has never overheated (but does get warm enough), except for when it was rooted. I rooted yesterday only to install some custom fonts and the temp went right up...

bump

Blame the badly coded apps which utilise 100% CPU power despite the fact that less will do.
Yes your phone is perfectly fine. Keep in mind that the only cooler for your phone is it's environment. Since it's summer most places and the temperatures are getting warmer, the phone will not be able to cool as efficiently as it does when it's cold outside. As long as phones only have passive cooling and very powerful processors, this is what to expect. Take any flagship and you'll experience the same. You don't need to bump this anymore now =)
Sent from my LG-D802 using XDA Premium 4 mobile app

vPro97 said:
Blame the badly coded apps which utilise 100% CPU power despite the fact that less will do.
Yes your phone is perfectly fine. Keep in mind that the only cooler for your phone is it's environment. Since it's summer most places and the temperatures are getting warmer, the phone will not be able to cool as efficiently as it does when it's cold outside. As long as phones only have passive cooling and very powerful processors, this is what to expect. Take any flagship and you'll experience the same. You don't need to bump this anymore now =)
Sent from my LG-D802 using XDA Premium 4 mobile app
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My sister's S3 neo never goes over 50 celcium while my g2 burns my fingers while browsing? Ugh. Idk, i will take it tommorow to the service to be sure, the phone is alright, cause sometimes it even smells like burning... or maybe it is just my imagination

gintariukeas said:
My sister's S3 neo never goes over 50 celcium while my g2 burns my fingers while browsing? Ugh. Idk, i will take it tommorow to the service to be sure, the phone is alright, cause sometimes it even smells like burning... or maybe it is just my imagination
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I took a look at your stats again. Try doing a factory reset and try browsing again. You can do that tonight so if it doesn't work you can still take it tomorrow
Sent from my LG-D802 using XDA Premium 4 mobile app

LG G2 is overheating (like Nexus 4, Nexus 5 and other LG devices)... Its normal, nothing wrong with your phone..

CPU and battery temperature after intense use

Hi guys, i want to ask you one thing: are this temperatures fine after an intense use of phone (internet, about half hour of Modern Combat, camera etc)? To my hands it is a little warm, but i think is normal. Do you?
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turtuv said:
Hi guys, i want to ask you one thing: are this temperatures fine after an intense use of phone (internet, about half hour of Modern Combat, camera etc)? To my hands it is a little warm, but i think is normal. Do you?
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All devices heat up a bit after some heavy usage, nothing to be worried about though.

Yes, i know, i just wanted to know if those temperatures are normal The phone warm up a little bit when it is charging too, right now i have 32.8° battery's temperature. Is that normal too? Thank you in advance.

turtuv said:
Yes, i know, i just wanted to know if those temperatures are normal The phone warm up a little bit when it is charging too, right now i have 32.8° battery's temperature. Is that normal too? Thank you in advance.
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Thats normal aswell.

Mufrad said:
All devices heat up a bit after some heavy usage, nothing to be worried about though.
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First of all Sorry if this question is a repetition. Can't find a proper answer for this at least relevant to latest devices like Galaxy S7.
I play lot of heavy games in S7 like MORTAL KOMBAT X, NFS No Limits, Real Racing, GTA Sanandreas, Modern Combat 5. Might be about 45 mins continuously, twice every day. The question is that whether heating up of device & the battery has any adverse affect/permanent damage to battery life(long term) causing it to last shorter when compared to how it was out of the box even with same amount of gaming. Hope everything is clear in the question.
Thanks

"sleeping" CPU cores...anyone else notice this?

Last night I was just messing around and looking at some things trying to figure out the issues with choppy scrolling on our phones since the update and was checking out CPU usage and noticed something interesting...
I saw that two of the CPU cores were being reported as "sleeping" with no activity registered on them...even after running a benchmark there was no activity shown...
A reboot "fixed" the issue and all 4 cores were reporting activity...but then after going to bed, and waking up this morning it is back to the same...I attached a couple of screenshots to show what I'm seeing. You can see in the second picture the "history" clearly shows where the two cores went to sleep...
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Isn't the 820 a big/little quad core? You'll only have 2 active at one time.

fr4nk1yn said:
Isn't the 820 a big/little quad core? You'll only have 2 active at one time.
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You can clearly see here...that after rebooting the phone...all 4 cores will register as active for a time...
Or here
Sent from my XT1650 using Tapatalk

I was wrong. The SD820 is not big/little it's asymmetrical.
With that said I'm running Geekbench in splitscreen and the highspeed cores are not showing as active.
Going to reboot and try again. If the score is significantly higher.

fr4nk1yn said:
I was wrong. The SD820 is not big/little it's asymmetrical.
With that said I'm running Geekbench in splitscreen and the highspeed cores are not showing as active.
Going to reboot and try again. If the score is significantly higher.
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My AnTuTu scores don't seem to be significantly lower when the cores are "sleeping" maybe 1000 points give or take (on total scores of 150,000+ so not significant) but it's still odd for all of these apps to be having such a hard time accurately reporting the activity on such a popular chipset ya know?
Sent from my XT1650 using Tapatalk

I have noticed the same phenomenon on Xperia XZ (Snapdragon 820 also) after Nougat update. Have not done any benchmarking though.

Whats the path to get to the screenshots you posted???? Or is it an app????

You can also see the utilization is much less. Maybe it's automatic that they wake or sleep based on demand?

I've noticed this too. Have opened up games and many other apps but cant seem to get those 2 cores "awake".

Here's an interesting app I stumbled across: https://play.google.com/store/apps/details?id=com.mediatek.multicoreobserver
With the last update its definitely not turning off any cores. All 4 are staying active and scaling at all times.

heating issue

my s4 i9506 heat up to 80~82 c° after gaming or benchmarking , then it work very laggy.
I think it's a hardware probleme but how to resolve it ?
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fond bcn said:
my s4 i9506 heat up to 80~82 c° after gaming or benchmarking , then it work very laggy.
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you said it yourself, heats after gaming or benchmarking, both acts uses in a highly way the hardware components of the phone like the CPU and the GPU which makes the phone heats, but the phone should cool down after a while, also note that the weather has an effective role in controlling the phone's temperature, in here my phone heats a lot and faster in summer that it does in other seasons.

MigoMujahid said:
you said it yourself, heats after gaming or benchmarking, both acts uses in a highly way the hardware components of the phone like the CPU and the GPU which makes the phone heats, but the phone should cool down after a while, also note that the weather has an effective role in controlling the phone's temperature, in here my phone heats a lot and faster in summer that it does in other seasons.
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I played with many devices (s3 s4 mini s4 i9500) ,
But I didn't see any heat to 82° .(max. Was 64°) !! Battery and performance also decrease very much !!

fond bcn said:
I played with many devices (s3 s4 mini s4 i9500) ,
But I didn't see any heat to 82° .(max. Was 64°) !! Battery and performance also decrease very much !!
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maybe it's a faulty component, could be the CPU, i have 2 s2 phones, one of them used to heat with normal usage till it's stuck completely and force me to remove the battery, but in a weird way, it stopped doing that after a few days of changing the stock rom (doesn't make any sense), the other s2 never heats unless i run a high-end game like asphalt 8 or real racing 3, or the weather is HOT.

MigoMujahid said:
maybe it's a faulty component, could be the CPU, i have 2 s2 phones, one of them used to heat with normal usage till it's stuck completely and force me to remove the battery, but in a weird way, it stopped doing that after a few days of changing the stock rom (doesn't make any sense), the other s2 never heats unless i run a high-end game like asphalt 8 or real racing 3, or the weather is HOT.
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How do i know it's a hardware issue or rom issue ??

fond bcn said:
How do i know it's a hardware issue or rom issue ??
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there is no specific solution, change your rom and if you notice that the problem went away, then it was a kernel issue probably, if not then it's a hardware issue.

S4 is prone to heating issues. It destroys any memory card in it too. Old tech. Not surprising.
Solution: Try not to game on it.