[Q] My SGSII heat up alot - Galaxy S II Q&A, Help & Troubleshooting

Hi all,
My SGSII heat up alot while charging. (for exactly i charge when phone have only 8%). The heat is not normal. It's more heat than while playing game.
And also it got high temp while using wifi and internet browsing between these days. Do you guys face the same problem?
SGSII is really great . But it heat up alot while playing game and turn on wifi.

Mine is a bit warm in the battery area when I begin charging the phone. But I wouldn't call it "extremely hot".
Another case is when I browse the web (that has flash) it feels a bit warm near the camera area (should be the CPU). Have not played games though.

There has been a discussion going on about that. It seems that some apps (eg Robo Defense) are not properly coded for the dual core. In addition some members also hinted, that the kernel is not yet optimized to compensate for that. The whole discussion started after a guy has "fried" his SG2 (beyond repair) while playing a game and charging at the same time. The phone still worked on AC power but no longer and battery and was unable to charge battery.
My recommendation would be,
- not to play games to long to heat up the device to much before new firmware is out.
- ...or use cet CPU to downthrottle to 500-800 MHZ
If the device heats up while charging I would try rebooting it (to get rid of processes which may still are open) or preferably charging while switched off

d3xophen said:
Hi all,
My SGSII heat up alot while charging. (for exactly i charge when phone have only 8%). The heat is not normal. It's more heat than while playing game.
And also it got high temp while using wifi and internet browsing between these days. Do you guys face the same problem?
SGSII is really great . But it heat up alot while playing game and turn on wifi.
Click to expand...
Click to collapse
Which firmware are you using? I was on KF2, and experienced the phone heating up while playing games.
Updated to KF3 (stock, using Kies) rooted and all was well again. Even with excessive gaming, constant wifi on etc the phone just gets mildly warm.
There's no need to underclock etc. The heating issues just went away with KF3. If that firmware is not yet available in your area on Kies, then just put a newer custom ROM (Darky/Lite'ning/Villian etc) and try it out.

I remember whatsapping with some friends and I noticed my pocket felt really really hot. I checked and saw Whatsapp crashed. Also my battery sucked up about 30%. The phone was too hot to touch. I instantly took out the battery too let it cool down.
I never had that since. I expect it's resolved too, because I have KG1 now.

my firmware is KF2. now i decided to upgrade to KG1. is it stable now? any recommend rom?

As long as it stays below 50°C it is perfectly NORMAL.
And besides there is NO heat up issues with this phone.
Regards.

Hello
My s2 heated up alot too
so much so that it melted my simcard whilst it was on charge
also got led burn marks,
sent it to samsung lets see what they do 4 me

I already upgraded to XXKG1 and still heat up alot while playing pottery game.

This is why from the factory apple underclock their cpu's.
Samsung got the crazy idea of overclocking an already power hungry cpu.
A phone that gets too hot to touch under normal use is not fit for purpose
Sent from my GT-I9000 using XDA App

Related

[Q] SGS II screen & back becomes hot

Hi guys!
Just got my SII yesterday. After couple of hours use I admit that the phone becomes hot even on normal usage, like downloading apps etc. The back of the screen as well as the screen itself slowly becomes hot. If i continue to use the phone it gets worse! I'm really confused n kind of scared. I've a iphone 3gs which rarely became hot. So, can u guys please tell me if its normal with SII or its just my unit that's got some problem?
Oh, sorry if its a duplicate thread. I've seen in different websites people saying it become hot when playing games. In my case since I had my phone I didn't even install a game yet! What I did is installed couple of apps, widgets and I use mspot to sync my music(446MB) over internet.
Any suggestions and advices appreciated!
It's normal that it gets hot when you use it
You have to remember that it's a dual core 1.2 ghz proc... and Yes it's normal..
Thanks for the replies. What concerns me most is the screen becoming hot and that I don't know if anyone else is experiencing this. How about u?
Aldonski said:
You have to remember that it's a dual core 1.2 ghz proc... and Yes it's normal..
Click to expand...
Click to collapse
a part of the issue is it is a 1 GHz CPU overclocked to 1.2 GHz, so whenever your activity demands 100% of CPU, it gets sped up to 1.2GHz and gets hotter than needed.
But yes, excessive heating is not a defect, the phone is just too thin and tightly packed to dissipate heat effectively.
Actually, i dont think it's normal
The processor sometime get stuck at 1.2GHz in my device
whenever ur phone get too hot, go and check SetCPU, if the phone dosent get below 1.2 when idle, then reboot
My guess it's a kernal thing
Not normal. Mine doesn't get hot even when gaming. It used to get hot before I updated the firmware. Now it does not.
Sent from my GT-I9100 using XDA Premium App
how can it be normal when the battery doesn't get warm at all while top screen and camera lens is hot like hell, and yes i mean hot like hell. so far no firmware has fixed this problem.
Blue1k said:
Not normal. Mine doesn't get hot even when gaming. It used to get hot before I updated the firmware. Now it does not.
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
I had the same issue, it dissapeared after I flashed to KE7
Thanks for the replies.
Well, it seems yesterday my phone was warming up even in normal usage but now after using the phone for over 4hrs(after full charge) and a lot of usage(videos: 60-75mins, downloading apps, music: 40-50mins, little web browsing & checking fb & mail and sync & wifi always on.....) temperature is around 30 deg celsius.
Next thing giving me trouble is the capacitive menu button which wasn't working at all since yesterday(back button was ok). Last night, sometimes it worked for a few seconds and dead again. I was thinking I should call O2 for a replacement, suddenly its working again today! Guess its a software problem.
Another thing I'm concerned about is the battery life. After charging it to 100% and after the above mentioned usage the battery level is bellow 40% after only 4hrs. Well, brightness was 0% most of the time which is ok for indoor use. Its quite funny that the phone doesn't seem to discharge faster when playing videos(at youtube & vevo) compared to browsing web. In the review & battery tests at gsmarena they mentioned battery life is very good and can last almost a day with heavy usage. What u guys r experiencing? Is it similar to mine or mine has got a faulty battery.
which firmware are you running?
I'm on O2 as u r. So I guess its the same one. If not, mine's build number is ....XWKE2, baseband: I9100XXKDJ
NB: I'm using the stock firmware, didn't root and didn't use any optimisation app like juicedefender. And display brightness is on 0%, always on wifi.
KE2 is a little buggy, you try updating to latest firmware build KE7, might solve your problem.
you can do it if you connect your phone to your pc and run kies, or reading in the dev section of the forums there is a sticky there that informs you how to upgrade firmwares.
Thanks for the reply.
I use mac and the kies mac is in beta and won't let me upgrade(option disabled). I've tried the windows version of kies(downloaded directly from samsung portal) via paralles desktop for mac(lets u use windows app in mac) but it say mine is the latest version(ke2).
And the capacitive menu button is dead again! Is it possible that this is just a software problem? Or should I contact O2 for a replacement? Its my 3rd day with the phone so I've to report ASAP if i need a replacement.
The battery also feels faulty to me. It turned from 100%-1% with only 8hr of usage as follows:
videos: ~75mins(mostly HD),
downloading several apps apps,
music: 50+mins,
little web browsing,
checking fb, rss feed & mail,
sync & wifi always on,
brightness most of the time at 0%,
fring chat: 50-60 mins
And it took 3hrs to completely charge it up. Is it normal for you guys? Or should I request for a replacement? Any suggestions appreciated!
i have debranded my phone from O2 and upgraded to KE7 from kies, but if you cant do it that way you can try upgrading thru odin.
http://forum.xda-developers.com/showthread.php?t=1075278
This thread has multiple firmware versions and instructions on how to flash your phone (please note, if you decide to flash your phone, you do so at your own risk, even thuo the risk is quite small).
As for battery usage, i have rooted my phone and frozen a lot of bloatware, if i leave the phone on standby with wifi off the battery drains lest than 1% each hour, with wifi on its about 2% each hour.
Also i find that when i play angry bird a lot i have to recharge after about 6-7 hours, when i watch videos my phone heats up a little, it heats up a lot if i watch videos while charging.
hope that helps you, if not talk to the ppl at O2 to see if you can get it swapped out, but i think if you can get your firmware upgraded your battery drain should reduce and the shouldn't heat up as much.
Thank u very much for the replies. It looks like battery draining is normal for all SGS II users. Its kinda funny that playing videos over internet eats less power that browsing web(27.19min of HD video playing at vevo over wifi drained only 5% of battery!).
So now everything seem ok except the capacitive touch keys which sometimes which doesn't work most of the time. I'm just scared to use custom roms as it might void my warranty. Well, I'll try the link u mentioned and see if the problem still exists.
Thanks again

[Q] Anyone else's phone running hot?

I've been noticing a good amount of heat up by the camera during moderate use. I thought this was a CM7 problem since I had been on it since day 1, but I am now on UnNamed and the problem persists. After some googling it does seem that many other people are having this problem. Not on WIFI, and not in a poor signal area either. Just wanted to see if anyone had any leads as to the cause. What is a good app for monitoring CPU usage by app?
Yes, it may get a little hot but it isn't something to worry about as far as I know. I've gamed for three hours straight and not had any problems except for a low battery life!
yeah mine gets hot near the camera during use but i dont think its a problem
I use a battery monitor.
From what I've read, it will shut off for protection. I've heard that as long as it doesn't ever get too much above 130 F, you should be OK.
Now if it constantly stays high, there may be a problem. Mine stays around 80 F most of the time and the highest I've ever seen is 99 F but i don't game much or use my camera. One thing you don't wanna do is charge it while hd gaming or charge it in a hot car. My infuse reached 146 F one time doing that.
Sent from my SAMSUNG-SGH-I777 using XDA App
I only notice my battery gets hot when im charging while playing a game or sometimes watching a movie
Sent from my SAMSUNG-SGH-I777 using XDA App
Somehow 'Words with Friends' caused my phone to really warm up a lot. More so than I've seen with any other situation and on numerous occasions. Luckily I suck at that game and uninstalled it...
Mine is cool unless i put a thick case then itll burn up
Sent from my SAMSUNG-SGH-I777 using XDA App
When I first got CM7 running on this thing, I tore through the market installing the apps I'm used to. When I was finished, I noticed that it was indeed a bit warm in the area you described. It wasn't hot enough to cause discomfort, just warm enough to note.
I notice when my phone gets hot in that area when it is around 30% remaining and I charge it. I also notice that when it is charging, it really isn't charging but battery is draining. When I got home and charged it at 30%, I left it sitting there for about 30 minutes and when I checked the phone again, it was at 25%. GPS and wifi was turned off. I decided to power down the phone and remove the battery for 5 minutes. I started working fine after that. I noticed it getting hot again today when I plugged it in to charge at 40% but this time it actually was charging. I am running stock rom but rooted. Should this be a concern?
Seems as though a lot of people are having a variation of this problem. Hopefully it is addressed soon.
The CPU will always get a bit warm if it's running.
If it's getting very hot when the screen is off, you've probably got some background task wakelocking the phone.
My phone's screen gets pretty hot when I run web videos/flash videos on HSPA.
Runs a tiny bit warm when i'm running pristine 3D Tegra games on it...otherwise no.

[Q] Do you experience heating issue on your S3?

I've been using my i9300 S3 for a few days now and it seems to heat up on the lower back when using wifi/data extensively. It's not hot to cook an egg sort of thing, but it seems hotter than usual.
Any of you experience such issues?
Hello
I am first time android user. Even i noticed this. Please let me know if it's ok.
It feels normal to me though....but I guess extensive usage may increase heat, just like computers and other electronic devices
I noticed the heat issue a lot more when I just got the phone. It still warms up a bit but i would say it is normal.
Though it did get pretty hot on my last flight during take off that I had to turn it off. Didn't want my expensive phone to melt.
Sent from my GT-I9300 using XDA
It's normal I wouldn't worry about it to much although it will get warmer if it is being charged while using the program.
I am facing a similar issue ! My question is what temperature is safe enough ? I mean I have used few battery info apps. I have got a temperature reading of around 42 - 43 degree Celsius ! Is it normal ?
tridibsahabd said:
I've been using my i9300 S3 for a few days now and it seems to heat up on the lower back when using wifi/data extensively. It's not hot to cook an egg sort of thing, but it seems hotter than usual.
Any of you experience such issues?
Click to expand...
Click to collapse
Do you own a computer of any kind? Not even that, any electronic device... a TV, PC monitor, anything? Use it for a while, and then report back to me any changes in temperature....
Is quite normal as long as your palm doesn't feel uncomfortable with the heat.
Sent from my GT-I9300 using XDA
I had the one x it got as much as 163 Fahrenheit very very hot.
Sent from my Galaxy Nexus using xda premium
S3 overheating
Krico is absolutely right. It happened this morning when I was charging thru a notebook using both devices at the same time. And the heat lingered on even though I unplugged it. So I switched it off and now it is back to normal. Tks.
The phone can get pretty hot using WIFI and 3g extensively or 3d games. This is normal, electrical components heat up after prolonged use, your computer heats up your tv heats up. As long as the phone isn't burning your hand or exceeding 60C you should be fine. My phone gets warm to the touch and noticeably heats up but doesn't get HOT, if your phone ever gets HOT, turn it off to avoid damage.
I use an app called temp cpu v2. It displays a few interesting stuff incl. battery temperature. There are probably other apps like this.
With wifi on I get around 26 degrees but it sometimes goes up to 50 (or a little more?) on 3d games using wifi.
While charging it gets a little hotter.

[Q] Phone gets Hot

Is it normal, that the phone gets really hot, if i play some games !? i mean, sometimes it's so hot, that i can't touch the screen ...
Completely normal
Sent from my GT-I9100 using Tapatalk 2
Mine heats up like crazy if I just use Wi-Fi intensive applications (Skype etc) while charging!!
What about playing videos whilst charging? It heats up like a freshly baked pie!!
Sent from my GT-N7000 using XDA Premium 4 mobile app
Of course it gets hot if you do anything CPU intensive for any length of time (even more so on charge). The CPU has no cooling, no effective heatsink & is in a very enclosed space near other components that also get hot (including the battery). It's not like a PC CPU which has at least one fan & a heatsink (and vents), not to mention plenty of clearance (compared to a phone at least) between components in a desktop PC at least which allows heat to dissipate better.
Mdaazam said:
What about playing videos whilst charging? It heats up like a freshly baked pie!!
Sent from my GT-N7000 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
OC to like 1.4 GHz, OC GPU, Max screen brightness, charge and play graphic intensive games :good:
It's normal
I know this is an old thread, but I just started having this problem. I've had my Galaxy S2 since March 2013 but only in the past week as the phone been heating up and draining battery power to almost nothing in a matter of four or five hours. I used to be able to use the phone multiple times over the course of the day with no issue of heating or battery power, but ever since Friday 12/13 I've had this problem. It gets so hot I keep it off until I need it, and I'm used to keeping it turned on. Even keeping it in airplane mode doesn't keep it from heating up. I've had other Samsung Android phone users tell me of the same thing happening only in the past week, not before that. Any idea what it could be?

Heat

Some phones are great to take camping because if you play Asphalt 8 long enough, the back warms up to the ideal temperature that can bake bread. Rate this thread to express the extent to which the Xiaomi Redmi Note 4 stays cool under extended heavy use. A higher rating indicates that even when playing strenuous games for long periods of time, the phone doesn't get uncomfortably warm.
Then, drop a comment if you have anything to add!
I'm no gamer, but I didn't faced any heating issues so far.
Maybe I can't speak about heat as I used to use a galaxy S4 exynos (it's a portable cooker in case you don't know, easily reaching 96°c when just browsing on battery), this never heated, the temperature is about 45°c and it never felt uncomfortable hot, actually it never felt hot even in high external temperatures, I don't game on my phone, also I don't do highly demanding tasks, but I guess this phone can stand very well against whatever demanding task you want..
Ya very less heating in rn4
This phone is cool as... Hm, how to explain this.
Imagine hell.
Now imagine it has frozen.
That's the heat level of RN4. Snapdragon 625 does it job.
My phones been fine, up until this last few weeks...
Where I can't hold a charge for more than half a day... And even running phone a USB socket on the computer, the phone still discharges faster than it can charge. Battery getting hot too... I've tried looking to a culprit app that might be churning the cpu. But even process Explorer isn't showing high cpu use from any given app.
The battery app which shows what apps drain most doesn't seem to show it either.
Really worried and nearly giving up. Might do my first factory reset in the 2 years I had this phone. Maybe time to root it and install another rom, Any suggestions?
NutsyUK said:
My phones been fine, up until this last few weeks...
Where I can't hold a charge for more than half a day... And even running phone a USB socket on the computer, the phone still discharges faster than it can charge. Battery getting hot too... I've tried looking to a culprit app that might be churning the cpu. But even process Explorer isn't showing high cpu use from any given app.
The battery app which shows what apps drain most doesn't seem to show it either.
Really worried and nearly giving up. Might do my first factory reset in the 2 years I had this phone. Maybe time to root it and install another rom, Any suggestions?
Click to expand...
Click to collapse
Just trying to comfort you - you are not alone!
First, it's my secondary phone and I use it only when I travel. So not sure since when that happens. Maybe since a week or so.
Now I can lose like 30% in one hour, and the phone gets really hot. I used the last 2 days. Example, this morning it had 100% after overnight charging. I went for breakfast and lost 30% in one hour (rarely use the phone when I was out).
Then I charge a little in the car, phone went went from 58% to 64%. Then for no reason battery life was normal again and by the end of today I had about 20% - and then suddenly withing 20 Minutes it went dark.
I have the phone for about 2 years, this problem is very new.
What I try right now after reading stuff on the internet, so it must be true:
Remove all updates to Google Duo (this app can't be removed) and disable the Auto-Update for it in the PlayStore. Lets see..... (it's an app I never used, had to lookup what it actually is). Did that 15 Minutes ago and phone is already much cooler.
Ok uninstalled updates to duo and blocked auto update in playstore... ill see if that helps... Thanks for the tip
I must admit though, this had made me consider getting a new phone... but I dont really want to the phones good (when its working right) does all i need i to do.... Sure newer phones are a tad flashier but not enough to make me jump to get a new one.
Wow, That appears to have worked..... I mean its not really long enough yet to tell but it does appear to have stopped the fast draining and heat... At least for the first few hours....
Thanks
So if it really is duo causing this battery drain, why do no battery analysers seem to show that?
And is it doing it to all smart phone with duo and I guess it's latest patch installed?
Has duo been spying on us? Has it been running the camera and watching us while we sat on the loo, which I'm soooooo currently not doing..........
Thanks! The recent heat issue after an update had me thinking i need a new phone. I really like this phone, its lasted me by far the longest, and best run times of all I have ever had. I was worried about fire, did a full factory reset with no installed apps, but heat was still there. I removed updates to Google Duo, and stopped any future updates as listed above, and its running cool and clean again.
Once again thanks for this post!
Yep can confirm now after a few days... no heat no fast draining... Google Duo was the culprit... is it a but that just affected mediatek cpus? Or do all android phones suffer this bug? is anyones heads rolling at google for this farce?
ITs fine and good...... no options.
While charging and playing games or using heavy data apps.... it wont get heated like expected when connected to electricity.
When on power banks it works otherwise , gets charged and increase in temperature.
One of the best thermal performance I have seen on a smartphone, thanks to the Snapdragon 625 chipset powering the phone. It had no competition back when it was launched.
Using this phone for gaming almost baked my hand

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