[Q] Why does this phone get SO hot?! - Galaxy S II Q&A, Help & Troubleshooting

It's actually ridiculous. It has got hot when playing games for too long before, but when I woke up this morning, my phone was so hot I could barely even hold it. I thought it was gonna explode. I'd just left it charging all night, that's all. Why does it do this and is there any way to stop it?

Overcharge possible as it should be 0- 100% in four hours .
jje

I always charge it during the night and it never got hot for me... (usually around 8 hours on charge/day this way). The only cause I can think of is that you have some process that prevents the phone from sleeping and so the CPU is running + charge results in overheating.

Mine used to get really hot on a custom ROM. I found clearing cache/data, formatting system, and Dalvik cache, then reinstalling the rom did the trick for me. Like the previous post I can leave it on charge all night and it never gets hot anymore..

actiff said:
Mine used to get really hot on a custom ROM. I found clearing cache/data, formatting system, and Dalvik cache, then reinstalling the rom did the trick for me. Like the previous post I can leave it on charge all night and it never gets hot anymore..
Click to expand...
Click to collapse
Thanks, I think I'll try that. I need to charge it first cos it doesn't seem to be charging properly :/

If it's not charging properly might be a damaged charging circuit, backup and think about sending it for warenty repairs, make sure to flash to stock and remove flash counter with usb jig
Sent from my GT-I9100 using xda premium

ieatstaples said:
It's actually ridiculous. It has got hot when playing games for too long before, but when I woke up this morning, my phone was so hot I could barely even hold it. I thought it was gonna explode. I'd just left it charging all night, that's all. Why does it do this and is there any way to stop it?
Click to expand...
Click to collapse
This is a known issue with quite a number of phones, my first 2 phones didnt even heat up when playing dungeon defenders WHILE charging, no heat difference between that and angry birds.. my 3rd phone runs significantly hotter even when charing.. have it replaced.

Don't have this problem on my SGS2.
It is impossible to overcharge the batteries because battery has a BMS. Once the voltage hits what is considered close to 100% it stops charging. The BMS also detects temperature, once above 51C it stops charging as well.
Your problem with heat is probably CPU based, use something like OS Monitor and check what is having high CPU load. Are you overclocking or using a kernel with CPU tweaks?

There was one time I got a "battery too hot" message when I had my GS2 charging over night.. It's never happened again, I have no idea why it happend but it was over 50degrees...

Just so you know, I flashed the new update for MIUI and ever since then things have been fine, so far. Charging fine, no excessive overheating but I'll see how it goes.

When summer was here I was speaking with my friend in NYC and said it's 40°C here, then he said, oh! it's hot. But if I said, it's hot here, then he would have asked for the temperature.
Did you get my point?
Regards.

owerheat and owearcoold
when is in my pocket hi gett weary coold and when is in my hend weary heatt

Related

Over heating!!

Anyone returning their evo because of a overheating problem? Seems to be a serious problem and don't want it blowing up in my face. Read the article yesterday and checked mine and it charged at 4.348 mv. Or is this a software issue?
You wouldn't happen to have a eBay battery would you? Also the battery may get hot the first few charges. To reach 4.3V, well I'm not exactly sure how that's happening. Take it back I guess but if its your first charges then just give it time.
Unless the phone gives you a warning, or just shuts off its probably not overheating. You would be surprised how hot these can get and still be in a normal heat range. I tax my Evo pretty hard and it will get pretty damn hot, but never overheat hot.
What are you doing when it heats up? Are you playing games, charging, talking. Maybe some more info?
I've had mine in my pocket and noticed that some live wall papers really get the phone cooking. The My Beach one almost burned my leg! I guess my phone turned on in my pocket and it was going to town with random screen pushes. The phone was hot enough to hurt sensitve skin.
I've had my OG EVO get griddle pan hot several times. It has survived as well as the batteries. Every time I think I solved it, the next time it was something else.
Knock on wood, so far my 3VO hasn't got as hot. Yet.
next time you phone gets hot check and see how well your gps works.
there are some funky things going on with this phone.
Playing spider man and game froze the phone got extremely hot had to do a batt pull battery died in like 7 Min's
initial batt life was great like 14 hours and still had 50 percent after a week it got OG evo crappy, factory reset and juice def ultimate and batt is back to great.
Don't know if i should return for exchange.
toxicfumes22 said:
You wouldn't happen to have a eBay battery would you? Also the battery may get hot the first few charges. To reach 4.3V, well I'm not exactly sure how that's happening. Take it back I guess but if its your first charges then just give it time.
Click to expand...
Click to collapse
No I'm using the stock battery and it was just plug into the wall charger and not doing anything. Don't we have 4.2v batteries? Shouldn't it not be charging anything about that?
xjman said:
Unless the phone gives you a warning, or just shuts off its probably not overheating. You would be surprised how hot these can get and still be in a normal heat range. I tax my Evo pretty hard and it will get pretty damn hot, but never overheat hot.
What are you doing when it heats up? Are you playing games, charging, talking. Maybe some more info?
Click to expand...
Click to collapse
It was just plugged into the wall charger and i wasn't using the phone. I still don't think it should be charging over 4.2v since that's what we have?
kkwus74 said:
It was just plugged into the wall charger and i wasn't using the phone. I still don't think it should be charging over 4.2v since that's what we have?
Click to expand...
Click to collapse
Is the battery getting hot or the SoC?
xjman said:
Is the battery getting hot or the SoC?
Click to expand...
Click to collapse
It did go to 102f but i guess that's normal but sometimes it goes to 105 or 106 while charging.... But I have the evo4g and that never chargers above 4.2v... Just kinda worried... Don't want this phone blowing up in my face.
Haven't had this issue. I've been traveling and have changed the phone quite a bit from using the phone as a game system. It does get warm after 30 mins of angry birds. Nothing extreme however.
cout << "3VO" << endl;
kkwus74 said:
It did go to 102f but i guess that's normal but sometimes it goes to 105 or 106 while charging.... But I have the evo4g and that never chargers above 4.2v... Just kinda worried... Don't want this phone blowing up in my face.
Click to expand...
Click to collapse
It wont blow up on you. You should be safe at those ranges. when you start hiting 115 and 120 thats when you may want to unplug it and turn it off.
I had mine charging in the car mount last Sunday while running google nav, and the LED started blinking red and green. I assume this is the overheat indicator, although I can't find it in any documentation.
I had one weird overheating incident right after getting it activated at the Sprint store. 15 minutes later, it had been sitting on my desk and I go to pick it up and its crazy hot. I quickly pulled the back off and removed the battery, the battery was not hot, it was something behind the cameras. CPU I suppose. I waited a few minutes to put the battery back in but then it wouldn't turn on (overheating protection?). Went back to the the Sprint store for an exchange. Waited, waited. In the meantime I put the battery back in and it started up. After waiting 45 minutes with no help in sight I gave up... sigh. Sprint stores around here are always a PITA.
I haven't seen this problem again but seriously what the f? I went ahead and applied the OTA updates in case they included some fix for this.
Yeah, in car charger mine hit 114 with gps going. Took it back, better but not great with the new one 102. EVO 4g ran hot but that was self induced. Oc etc... Stock shouldn't go above 102 ever
Sent from my PG86100 using XDA Premium App
my phone regularly gets to 105F from regular use sometimes; using the internet browser over wifi, playing games (cut the rope got the phone to 107F), charging also heats up the phone. I don't have auto syncing enabled.
is that normal operating temperature?
Disable auto synching of apps. no more overheating
Sent from my PG86100 using XDA App
My question is should a phone be charging over 4.2 when the voltage of the battery is 4.2 max? Wouldn't that greatly reduced the battery life if charged over that voltage? Anyone care to explain? Cos I'm really not sure what the implications are.
kkwus74 said:
My question is should a phone be charging over 4.2 when the voltage of the battery is 4.2 max? Wouldn't that greatly reduced the battery life if charged over that voltage? Anyone care to explain? Cos I'm really not sure what the implications are.
Click to expand...
Click to collapse
The voltage of the stock battery is 3.8V. I am surprised it would see higher voltages but it may have a variance that is +-(.4) even when charging the voltage shouldn't vary that much, but the amperage should increase instead to charge the battery and run the phone at the same time. I am not sure where you seen the voltage at though so if its an app, how accurate is that app. How often does this happen as well?

x10i battery Temperature.

hi,
i have SE x10i and i downloaded some apps in the market and my phone suddenly restarts... and i flash it on SE PC companion and its now ok
the problem is that when ever i charge the phone the battery heats up and then my phone also heats up and shuts down... i get the battery out for some few minutes to cool down and then it gets ok.. but because i want to charge the battery but still same problem..
what should i do??
regards,
red
Are you heavily using the phone (gaming, watching videos, streaming, surfing the net) while charging?
Install setcpu and use a temperature trigger of 50C (or what you want) to limit the cpu.
Mine is set for 768Mhz.
And if you are using it while its charging try not to cup the back of the phone, you trap the heat.
If it keeps shutdown when you charge, you should bring it to SE service. Maybe this is hardware problems.
Nucleus55 said:
hi,
i have SE x10i and i downloaded some apps in the market and my phone suddenly restarts... and i flash it on SE PC companion and its now ok
the problem is that when ever i charge the phone the battery heats up and then my phone also heats up and shuts down... i get the battery out for some few minutes to cool down and then it gets ok.. but because i want to charge the battery but still same problem..
what should i do??
regards,
red
Click to expand...
Click to collapse
switch from 3G to 2G
OmegaRED^ said:
switch from 3G to 2G
Click to expand...
Click to collapse
i already did that sir..
i also update the rom to GB but still the problem is the same..
when the cp heats up its restart automatically..
@all
where can i DL such apps that can normalize the cpu's temperature..
i cant charge normally because as what i have said
it heats up and shutsdown thee phone..
Aw man that sucks, keep in mind your battery life will get worse if its heated too much.
Sent from my X10 using XDA App
yeah really really sucks.. i cant normally charge with my charger
coz when the temperature rises it will stop charging ang the phone restarts or automatically off...
thats why i need your opinions! please..
i dont think this is a hardware problem because
this is brand new... and i dont use it agressively...
Nucleus55 said:
i dont think this is a hardware problem because
this is brand new... and i dont use it agressively...
Click to expand...
Click to collapse
Not all brand new devices are in perfect shape. There's always a factory defective one..
Try consulting your problem at any service center of S.E. or ask for a replacement. As you said its a brand new device it has warranty.
sent from my stock gb not rooted and no add ons.
Just want to
up
this thread
really need some
opinions and advice
whats the solution??
Hi Nucleus55,
Although i'm relatively new to xda, i'm also relatively "old" to h/w related problems, so here's is one piece of advise if you like.
As stated also from other member's previously "-- X10B --", if the phone's temp rises to a degree where it auto-reboots and stops charging, and if this occurs every single time, then you should probably replace it from your nearest SE shop. Especially if it is new and under warranty. As stated from "-- X10B --" there is always the possibility of a h/w error or in construction and/or design flaw in that specific model. You never know.
Personally, i got this "batterylife" widget (from market) which shows battery status and temp, and for me, when i charge my phone, it has never gone above 40 degrees Celsius while idle (charging only) and up to (MAX) 48 while under heavy stress during charging, like games, videos, etc.
I have never seen it gone to 50 degrees.
You could also do as previously stated by "kindred7", that is, install an application and set the max degree to 50 degrees, although i strongly recommend (this is always my personal opinion), when it comes to ALL electronics, to always keep them as cool as possible. If this is not possible, because you tend to stress it all the time either from games or videos, then you could find a better cooling solution, like maybe removing its cover while charging.
I have just tried it myself about a half an hour ago to see if there is any change in temp, and i have noticed that in my work space where the ambient temp is around 25 degrees, the phone while charging and uncovered, was stable at 38 degrees Celsius.
Also, if you a lot of functions ON like Wi-Fi, GPS, Bluetooth, then it is obvious that the phone temp will rise to its max. If so, then try to disable any things you don't need, not only while charging but always.
That's all that i can think of right now
this has happened to me after i updated my x10i to 2.3.3 .. the battery life has just got worse and sometimes while heavy use the battery temp rises very much.
Any Solution will be helpful.
Nucleus55 said:
hi,
i have SE x10i and i downloaded some apps in the market and my phone suddenly restarts... and i flash it on SE PC companion and its now ok
the problem is that when ever i charge the phone the battery heats up and then my phone also heats up and shuts down... i get the battery out for some few minutes to cool down and then it gets ok.. but because i want to charge the battery but still same problem..
what should i do??
regards,
red
Click to expand...
Click to collapse
From the symptoms you've listed I'm pretty sure you need a new battery due to the heat exposure.
When you are charging your phone make sure you have your screen off. I know this sounds stupid but I found it stopped my phone from overheating while charging
my battery is heating aswell
i upgraded and did not use my phone for 5 hrs ish and it was just on my table and then i smell smoke frome my phone and it was like my battery was a bbq
Aphex33 said:
From the symptoms you've listed I'm pretty sure you need a new battery due to the heat exposure.
Click to expand...
Click to collapse
yes i think this is the problem that i forgot.
i expose it to sunlight while we are drinking some beer with friends outside of our house . and
because i have some sms i grab my phone and damn it was so hot.
so i put my phone inside the house and after that it started to resart whenever the temp rises, or even i use a short period of time...
06bgoggin said:
When you are charging your phone make sure you have your screen off. I know this sounds stupid but I found it stopped my phone from overheating while charging
Click to expand...
Click to collapse
sir,
even when i shut down my phone and try to charge
when my phone starts to heat up
and suddenly it stops from charging
and the phone is very hot as well as the battery
ill try to replace battery, if still the same
maybe i will forcely go to the store that i bought my phone.
I have the same problem
maybe SE company should read all the negative feedbacks on there Phones...
and make some upgrades of this ****.

[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.

Something made my battery tank 40% in 20 minutes

Lol not sure what happened here.
I left my phone off charge to take a shower at 60%, came out and it was 20%?
Im on MIUI Rom 1.11.11
Is it just bad calibration or something?
CollegeProfesor said:
Lol not sure what happened here.
I left my phone off charge to take a shower at 60%, came out and it was 20%?
Im on MIUI Rom 1.11.11
Is it just bad calibration or something?
Click to expand...
Click to collapse
Did you also see a significant drop in raw battery voltage?
Most likely the fuel gauge just glitched or reset. 40% in 20 minutes = 2 amperes drain, our device simply can't pull THAT much current, not even close.
Does if really equate to that much? I have seen a few cross ROM battery complaints ND I'm pointing my finger at the Facebook app
Sent from my SGH-I777 using XDA App
Fastest ive had mine drain down is when I left PocketCloud logged into a VNC session. It will run it down close to that fast.
Ya, Id take it off teh charger, reboot and see what it says after that.
When I was running CyanogenMod 7 this would happen all of the time to me. My battery would be at 98% and then suddenly after about 5 min, it would read 50%. I'm not really sure what caused this, but CyanogenMod 7 is the only ROM that I have had this issue with.
I'm now running Miui and I haven't ran across this issue yet.
I did read that calibrating your battery should solve this issue though.
Possibly similar to what a few of us encountered here: http://forum.xda-developers.com/showthread.php?t=1325164
It had to have been pretty hot to draw that much current that quickly. It's a 1650mAh battery. It will provide 1.65A for an hour from fully-charged, until it is discharged. You lost 40% in, say 15 minutes. That's 160% in an hour. Or about a 2.6A rate. Nearly 10 Watts. Sammy spec's a 9 hour talk time rating on 3G. By comparison, this means normal battery usage during a phone call is about 0.18A. Think about how warm the phone gets during a call, and compare that to how warm it'd have to get if you were sucking juice at 14x the normal rate.
If it wasn't really hot, IMO, either there's something wrong with the battery or your issue is "cockpit error".
Minds did the same thing today. I think it was from a old theme I applied.
After the theme was converted my phone started acting funny.
The screen started to lag
Phone got extremely hot without even being touched, just laying on my bed.
Phone kept rebooting
I didn't have any of these issues until I added the theme
Sent from my GT-I9100 using xda premium
craigbailey1986 said:
Minds did the same thing today. I think it was from a old theme I applied.
After the theme was converted my phone started acting funny.
The screen started to lag
Phone got extremely hot without even being touched, just laying on my bed.
Phone kept rebooting
I didn't have any of these issues until I added the theme
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
It did happen to me too, I just added a new theme (GOlauncher app) and the phone has started to get hot without using it, and the battery goes down very fast.

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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