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Galaxy S II very hot

Hi.Is it just my S2 get hot when I play games or use GPS? Especially at the top around the camera.
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Normal.

Yep, very normal. However I did find that using GPS really heated things up... next hottest is games
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same here
I had similar issue this morning. Listened to music then watched a video (20 minutes) on morning commute and device got very warm, felt it in my pocket. it soon cooled down but still a bit conerning....

arii1986 said:
Yep, very normal. However I did find that using GPS really heated things up... next hottest is games ...
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probably using that particular GPS software, not just GPS antenna by itself?
does it heat up if you just display GMaps with your location, without doing anything heavy in GMaps? Because I did not notice that much heat coming from using light GPS apps. Gaming - yes, some of those games are killers.

I am using Navigon software. I played Angry Birth and the same,phone was hot after 5min. I know is normal that phone is warm, but this is not warm,but hot.Galaxy S was cold compare to S II.
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Of course it's NOT normal. Might be normal for SGS2 but not for others. as I've said on another thread, Navigating with GPS driving it got to 60C, you could slowly cook an egg at 60C.

Mine doesn't get especially warm, It gets well 4-5 degrees warmer when I browse the web or watch HD movies

It's think it's high screen brightness in combination with SW (high CPU load)!
Mine is never warm if brightness is kept below 50%

My screen brightnes is 0%. It is hot at the top where is CPU I gues.
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Could rooted phone be warmer than unrooted phone?
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How many degrees celsius is taken as very hot on the Galaxy S II?.
I was overclocking my Galaxy S II earlier and my temprature was up to 46 degrees celsius when i was running a stress test on the phone.
So i just stopped my stress test of the phone then.

How did you measure temperature?I have just battery temp. it is 42.
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shawt said:
How did you measure temperature?I have just battery temp. it is 42.
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You can download the same stress test program as i'm using from Android Market. It's called StabilityTest v1.5.
it will test your CPU's on your Galaxy S II if you are overclocking it. But you can check the temprature even if you aren't overclocking.

the temp rise is sort of random, i can play games for hours (and its 26C here) with brightness on auto and so on, it doesnt get hot
then suddenly, it does, sometimes even when im not doing much
didnt get the time to pin point w/e thing creates that behavior
(and when i say hot ofc im talking of very very hot - which is what everyone talks about imo)
killall or restart and its good to go til it happens again

Tom-Helge said:
How many degrees celsius is taken as very hot on the Galaxy S II?.
I was overclocking my Galaxy S II earlier and my temprature was up to 46 degrees celsius when i was running a stress test on the phone.
So i just stopped my stress test of the phone then.
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I'm running that app now. I wanted to get an idea of temperatures at stock before undervolting/clocking so I could see how much difference it made. But the phone is seriously hot to the touch, enough to be worrying about. The app's reporting 50C after 37min but it feels hotter than that to me.
Some components are designed to run hot. For example I have an ATI 4850 that happily runs 70+C at idle is rated for up to 120C. But I'm worried even if the exynos can handle these temps what about the other components? The top of the screen feels even hotter back. Could this cause damage to the display for example?
This is my first smart phone but having that much heat in such a tightly packed device seems like a recipe for failure.

You will find temps of 50 deg centigrade and more when using all resources of SGS II (e.g. nav with wikitude drive = camera on) and phone attached to car screen on a sunny hot day.
This is normal!
Touch a nav-device in action and You will find it glowing ......
But contrary to HTC HD 2 SGS II does not freeze or crash at that point.
Leave a device switched off in direct sunlight in a car and it will get hot too, but still it will work .....
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my phone was getting extremely hot when benchmarking etc, this was default clock and voltages.
the phone reported it was reaching 50 degrees. thought this was "normal". this was on the firmware the phone was running outta the box.
flashed latest firmware and have since messed about with overclocking, @ 1650 my phone never got as hot as it did stock.
so if you have not done it, flash the latest FW...

So your cpu is not 1200 but 1650mHz now?
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Been running tons of different ROMs on tons of different Android devices, and every once in a while there is a particular combo that gets tremendously hot.
Once had my N1 get so hot while using Co-Pilot Live and Spotify while plugged into a car charger, that it turned off and wouldn't come on again for some 5-10 minutes.. Definitely worrying.. Switched ROMs and never saw the problem again.

Bettery problem

Hi, my sgs2 really heats up after 10 min of browsing or playing games .. is anyone else having the same problem if yes does any one know any solutions for it .. any help would be much appreciated ...
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It's amazing how electronics get warm when they have billions of dancing electrons flowing through them! Who would have known that electric current would create heat!

afreen said:
Hi, my sgs2 really heats up after 10 min of browsing or playing games .. is anyone else having the same problem if yes does any one know any solutions for it .. any help would be much appreciated ...
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When I use it intensively, for a couple hours it sure heats up, but not after 10 minutes
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How do you even state heat up without mentioning the temp?
Have a basic idea, based on an ambient of 30°C,
Charging- 50-55°C,
Charging+ Gaming- 55-60/62°C,
Normal Use for more than an hour with WiFi On- 40-45°C,
Moderate Use for half an hour- 35-40°C,
Standby for half an hour- Below 35°C.
That's just an overall idea I tried to input.
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ithehappy said:
How do you even state heat up without mentioning the temp?
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This. Give us some temps of normal and when gaming to see if it is abnormal (there are apps on the market that allow you to do this). Chances are, it isn't. The phone has to use more power to run games and processor intensive applications. It getting warmer is normal.

when i fap i mean use my hand in a productive manner, it heats up (inside joke from irc chat last night)

I9505 heat issue poll

Hi all,
I just wanted to find out how many of i9505 owners have heat issues while using their handset
Dial *#0228# to find out the temp

experia1234 said:
Hi all,
I just wanted to find out how many of i9505 owners have heat issues while using their handset
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Good idea, I am having this issue, I had it with my S3, on the bottom of the phone, and my S4 is having it at the top of the phone.
I am going to carry on using the phone when it heats up too much, because it shouldn't damage the phone just for you to use it. If it does break, then I will send it back saying sort it out. I aint having Samsung sell a dodgy phone to me or anyone because they are just trying to keep in front of the competition. It's stupid.
Hopefully they will have common sense in the future. I have had the S1, S2 and S3 and S4, and been happy with all so far, but a bit annoyed about the heat issue on the S4 more than the one on the S3 because they have had enough people saying about it previously.

skrapi said:
Good idea, I am having this issue, I had it with my S3, on the bottom of the phone, and my S4 is having it at the top of the phone.
I am going to carry on using the phone when it heats up too much, because it shouldn't damage the phone just for you to use it. If it does break, then I will send it back saying sort it out. I aint having Samsung sell a dodgy phone to me or anyone because they are just trying to keep in front of the competition. It's stupid.
Hopefully they will have common sense in the future. I have had the S1, S2 and S3 and S4, and been happy with all so far, but a bit annoyed about the heat issue on the S4 more than the one on the S3 because they have had enough people saying about it previously.
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I had the S, S2, S3 and never had heat issues like the S4, only after an 1hr of GPS or gaming but not as much - I can cook an egg on my S4 just while surfing the web, what a nice feature!
When i dont touch for a while it is at 33C, but as soon as I read emails or light web browsing it reaches 44C, if then on youtube 48-55C.
when it get hot the battery % drops significantly and then when it cools down it recharge itself!

I was somewhere on S4 forum writed, this heating come most if device is on 4G (LTE) network. Try put on 3G (HSPA) or 2G (GSM) and you will see (and feel) device is much colder...
Regards

miro666 said:
I was somewhere on S4 forum writed, this heating come most if device is on 4G (LTE) network. Try put on 3G (HSPA) or 2G (GSM) and you will see (and feel) device is much colder...
Regards
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No difference at all, even tried 2G

There are times my s4 gets real hot. Can't even touch the screen! The worst it got was when I did an antutu stability test. If I remember it said like 45*c.
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Mine reaches at 55-60
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Normally heat isn't a problem at all.
But sitting in a bus in direct sunlight with max brightness made it totally hot!
I was only browsing, so it was due to the screen.
When I had to make a phone call I had to keep phone a bit away from my ear.
It took 10-15 minutes to cool down again.
I think every single S4 WILL get really hot under same conditions.
Don't know how if this would be same for other brands like HTC One or iPhone

Mittaa said:
Normally heat isn't a problem at all.
But sitting in a bus in direct sunlight with max brightness made it totally hot!
I was only browsing, so it was due to the screen.
When I had to make a phone call I had to keep phone a bit away from my ear.
It took 10-15 minutes to cool down again.
I think every single S4 WILL get really hot under same conditions.
Don't know how if this would be same for other brands like HTC One or iPhone
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Yesterday I used GPS for 15 mins on power save mode and still got at 48C, battery dropped significantly.
I haven't see many votes yet which makes me think that it is not a common problem...

Standby - <27C° Browsing, video and other simple tasks - <45C° Games - <60C° So,overheating as well. Unfortunately.
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No issues at all. I have browsed for over an hour with no warm up. It warms a little when playing games or watching videos but no more than other phones ihave had and it doesn't justify the word 'overheat'.
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Just got mine yesterday and I must say the heat is very annoying, never had any problems with my s3. While with this one honestly it burns my face after 10 min talk.
Should I exchange it or just keep on using it ?
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cyrexking said:
Just got mine yesterday and I must say the heat is very annoying, never had any problems with my s3. While with this one honestly it burns my face after 10 min talk.
Should I exchange it or just keep on using it ?
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Return it if you can.
What is your idle temp?

experia1234 said:
Return it if you can.
What is your idle temp?
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Honestly dont know how to check it? Shed some info please and i will post it here.
Thanks in advance

*#0228#
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Thanks @ Cale77
Ideal temp 27.5 (C)
saving mode activated and nothing running in the back ground. Is it good or bad?

When mine got hot it would be from simple tasks like browsing the net for 10 minutes. At its peak, you could not touch your face with it to make a call. (Think its update fixed it though, must have been software problem for me).

No issues so far.
Do you run with auto-brightness? What conditions do you experience this in?
Hot ambient temperature, sunlight?

Gnarfoz said:
No issues so far.
Do you run with auto-brightness? What conditions do you experience this in?
Hot ambient temperature, sunlight?
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Auto brightness is on and working and still when i do few things on the phone the heat start to raise in an obvious way at the back of the phone around the camera area, then if i do make a phone call seriously the heat is very annoying to a degree that makes you just want to finish the call cause its very hot.

Hmm.
I guess there's a wide spread then. From perfectly fine to absurdly bad and maybe even defective. :\

[Q] Hot during calls

For some odd reason, the phone gets very hot while I am on a call. It doesn't happen all the time though. Calls are quite short (no more than 10 min).
Can anybody shed some light as to how to fix this glitch?
Cheers!

Try a different kernel and set the threshold really low. Recommend Franco. Also what's your exact temp?
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42.2C
Sent from my Nexus 4

texaslittleangel said:
42.2C
Sent from my Nexus 4
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thats not really hot, warm maybe, hot no. your body temp is 37C, water boils at sea level at 100C.

simms22 said:
thats not really hot, warm maybe, hot no. your body temp is 37C, water boils at sea level at 100C.
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But is it normal for it to get to that temperature in 5 min?

texaslittleangel said:
But is it normal for it to get to that temperature in 5 min?
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yes. depending on the background temperature too, and youre keeping it insulated in your hand.. if it was the middle of winter in new york city, and you were outside talking on the phone, it wouldnt ever reach that temp. but when its warmer, it can get there fast.

texaslittleangel said:
42.2C
Sent from my Nexus 4
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That's extremely cool and normal, no worries. But I have hit CPU shutdown limit (90° C) because it was to hot. Here's a screenshot I took before it shutdown.
Edit: I was gaming while charging on 3g and this was in Illinois like a month ago so weather wasn't hot. Lol I didn't know after my fingers started burning I needed to cool this phone down
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gravitysandwich said:
That's extremely cool and normal, no worries. But I have hit CPU shutdown limit (90° C) because it was to hot. Here's a screenshot I took before it shutdown.
Edit: I was gaming while charging on 3g and this was in Illinois like a month ago so weather wasn't hot. Lol I didn't know after my fingers started burning I needed to cool this phone down
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gaming while charging can do it. so can streaming a flash movie while charging. plus your battery will get very hot.

Mine was just a phone call hence why I thought it was a bit too much for 5 min. I don't usually give the phone heavy use and it normally remains pretty cool. I might just still change the kernel

Experience with heating of the S4

Hello XDA,
I decided to open this topic as I've been fumbling around with my device alot lately. Lately I've started to notice a dramatic increase of temperature while using my device running simple tasks like chrome, whatsapp etc. This only sometimes gets the device till 45-50 degrees Celsius, this is the CPU's temperature. While gaming, it reaches a whopping 60C ! Flashed to stock, updated to new base, reboot after reboot did not solve this issue. While charging sometimes it gets really really hot!
Now I'm wondering about your experiences, how hot does your CPU get doing what tasks? I'm wondering because im contemplating whether or not bring my device in to a service center as I've never had a device CPU above 45 degrees celsius.

Stefan0vic said:
Hello XDA,
I decided to open this topic as I've been fumbling around with my device alot lately. Lately I've started to notice a dramatic increase of temperature while using my device running simple tasks like chrome, whatsapp etc. This only sometimes gets the device till 45-50 degrees Celsius, this is the CPU's temperature. While gaming, it reaches a whopping 60C ! Flashed to stock, updated to new base, reboot after reboot did not solve this issue. While charging sometimes it gets really really hot!
Now I'm wondering about your experiences, how hot does your CPU get doing what tasks? I'm wondering because im contemplating whether or not bring my device in to a service center as I've never had a device CPU above 45 degrees celsius.
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I've also getting heated very badly just by simply just browsing even with screen at minimum, I've owned Galaxy s2 s3 s4 and all seems to heat very much, smh maybe it's just Samsung
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dorian2kx said:
I've also getting heated very badly just by simply just browsing even with screen at minimum, I've owned Galaxy s2 s3 s4 and all seems to heat very much, smh maybe it's just Samsung
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I've always wondered if more users experienced the same issue, now i'm doubting whether or not even to send it to samsung or not. Any more people are more than welcome to share their experiences

Anyone else?
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I think its normal.
Does your phone start to lag when it gets hot? If not, then in my opinion you are still safe.

Same here, but I only realized it was heating last month. Maybe it has something to do with a background process? Sometimes I can even feel the heat when my phone is in my pocket

It doesnt lag, but it does heat up ALOT while doing light tasks, up to 50C
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I have exactly the same issue
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Same
Same Here!

No heating issues whatsoever.
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Sameer, not even while gaming? Sure you don't have a very big case on your phone?
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My S4 heats up on charge with any battery.
I found mine goes really hot on charge than heat goes down on trickle charge.