I'm on a 2 week old AT&T G2 running the official KitKat (via OTA). Today I had an incident where I had torch on (via the Google Play app store, app named Torch written by Santoso Wijaya), then left it to auto turn off. However, apparently either the app or KK has a bug that caused the phone to heat up with the app running in the foreground while both the screen and the camera LED were off. By the time I felt it in my pocket, the phone had become toasty hot, and battery had drained from about 40% to 5% over a span of about an hour, but the phone did not shut itself down. I immediately rebooted it myself.
My question is: is the heat most likely caused by the CPU running at 100%? Is it likely to cause any damage given the scenario? Shouldn't the phone auto shut down to protect itself since it was running so hot (by the way it was *really* hot, like much hotter than the phone ever felt to me, even when I was playing games over LTE etc), or was it still not hot enough for that (which hopefully means it was safe?)?
Thanks for your inputs.
My question is why are you using a torch from play store when the phone has one on stock already, and yes the phone has a feature where if the battery/cpu hit a specific temp it should either a)throttle to cool down or b)auto reboot so I find that strange if you would have know the battery temp I could have told you if test it should have auto rebooted or not
Sent from my LG-D800 running stock kk, rooted with philz using XDA app
ilovecats said:
I'm on a 2 week old AT&T G2 running the official KitKat (via OTA). Today I had an incident where I had torch on (via the Google Play app store, app named Torch written by Santoso Wijaya), then left it to auto turn off. However, apparently either the app or KK has a bug that caused the phone to heat up with the app running in the foreground while both the screen and the camera LED were off. By the time I felt it in my pocket, the phone had become toasty hot, and battery had drained from about 40% to 5% over a span of about an hour, but the phone did not shut itself down. I immediately rebooted it myself.
My question is: is the heat most likely caused by the CPU running at 100%? Is it likely to cause any damage given the scenario? Shouldn't the phone auto shut down to protect itself since it was running so hot (by the way it was *really* hot, like much hotter than the phone ever felt to me, even when I was playing games over LTE etc), or was it still not hot enough for that (which hopefully means it was safe?)?
Thanks for your inputs.
Click to expand...
Click to collapse
It is probably completely fine. The processors in these phones have safety measures to shut themselves off when they get too hot, and they can also handle VERY hot temperatures. I remember my nexus 4 would get EXTREMELY hot, to the point it hurt to touch sometimes, and it's still doing fine
XxZombiePikachu said:
My question is why are you using a torch from play store when the phone has one on stock already, and yes the phone has a feature where if the battery/cpu hit a specific temp it should either a)throttle to cool down or b)auto reboot so I find that strange if you would have know the battery temp I could have told you if test it should have auto rebooted or not
Sent from my LG-D800 running stock kk, rooted with philz using XDA app
Click to expand...
Click to collapse
The only flashlight I could find on my stock AT&T KK is via a widget, which I do not want to use (I want a standalone app that I can launch via lockscreen shortcut etc).
Related
Does everybody's vibrant heat up like crazy when they are charging their vibrant?
yes I have two of them and they get pretty hot ( you can feel it in the back side underneath speaker)
Mine as well gets hot but it doesnt happen all the time. It's charging right now and it isnt doing it. Weird...
it usually won't get hot unless you're USING it while it's charging.
Mine used to go up to 116 degrees while charging, but them I swapped it out and my new one barely goes past 95
Sent from my SGH-T959 using XDA App
Blah man said:
Mine used to go up to 116 degrees while charging, but them I swapped it out and my new one barely goes past 95
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
Yes mine gets very hot also. How do you know your phones temperature? Theres a temp guage built into the phone?
Play Sims while charging. That's how I'm planning on keeping warm this winter. Oh wait, Sims keeps crashing now...
Sent from my Samsung Vibrant using the XDA app
Try disabling the Wi-Fi and GPS while charging it....Seems to stay cool when I do this on mine.
When using up a lot of energy and charging at the same time it causes the heat...this is one of the problem with the current battery tech :/..
from experience with other phones..wifi + charging = hot as hell..if you really must use wifi while charging for say tethering then I suggest putting it on a metal surface(which will act as a heatsink in a way) and it won't get hot.
I'm from down south.. And mine sits at 110... seen it at 115 before... Ive never had another phone get as hot..
Sent from my SGH-T959 using XDA App
I noticed this as well too. Seems that it is more noticable if you put in on charging soon after using wifi/gps intensive apps. Maybe they stay on longer when it sees it is on ac power? I even had one point where after over an hour charging there was no noticable gain in battery charge. I imagine it was using so much power that little was left to actually charge the battery. In all cases, a reboot fixed the issue and it charged quickly with little increase in temp.
Kinda remides me of my previous windows mobile phones. Sometimes an app would "hang" even though there was no error message and the app appeared to close down fine, I would notice my battery would be used quickly and the phone would be very warm. Usually it was an app that used wifi or gps that caused the issue. Maybe the app crashed before giving a "release command" or similar to the hardware and it kept on running at full power?
It happened to me twice. My phone went past all of yours. It got to temp of 143F. It was really hot all over the phone. I had to turn it off and take out the battery for it to cool down. It wouldn't even let me charge it cus it was too hot when the phone was off. I woke up to 18% battery charge after 7 hours of charging. It said that the display was using most of the batteries. I believe when you plug in your phone, i noticed a change in the brightness setting and i dont have automatic brightness enable. Now i make sure i fc everything before i charge and the brightness is at 0.
SamsungGalaxySVibrant said:
Yes mine gets very hot also. How do you know your phones temperature? Theres a temp guage built into the phone?
Click to expand...
Click to collapse
I use battery life from the market, also the phone had a temp gauge but to access it I use the "my device" app from tmobile > storage and battery > battery level
My phone only gets seriously hot, 122 degrees, while using the gps on full brightness
Sent from my SGH-T959 using XDA App
Normal. Remember different phone and different processor .... winter they should be cooler even while charging.
I started having this weird problem the past few days. My tablet seems to become very hot while charging. It also runs quite hot when on wifi. As a result the battery performance seems to be degrading. Any light on this...our has anyone faced similar problem. A possible solution to this would be highly appreciated.
Sent from my GT-P6800 using xda premium
if you read the user manual which comes with the tablet ( pdf is also available on official website) they have mentioned it in manual that tablet can get hot while charging and using processor intensive tasks like wifi and games. They have also said that it will not affect the longevity of tablet or battery in any way . My tablet does get a little warm while charging and after heavy usage. i guess its universal
om0 said:
if you read the user manual which comes with the tablet ( pdf is also available on official website) they have mentioned it in manual that tablet can get hot while charging and using processor intensive tasks like wifi and games. They have also said that it will not affect the longevity of tablet or battery in any way . My tablet does get a little warm while charging and after heavy usage. i guess its universal
Click to expand...
Click to collapse
I wouldn't worry if the tablet was getting a little warm. But the moment i turn on the screen, the left side of the tablet. both back and front become exceedingly warm even without running any intensive programs. The issue started about 2-3 days back only. i never had this problem before.
While charging the tablet is literally quite hot, and like I said more on the left side.
I think I need to go to a service center to get it checked.
Manipur said:
I wouldn't worry if the tablet was getting a little warm. But the moment i turn on the screen, the left side of the tablet. both back and front become exceedingly warm even without running any intensive programs. The issue started about 2-3 days back only. i never had this problem before.
While charging the tablet is literally quite hot, and like I said more on the left side.
I think I need to go to a service center to get it checked.
Click to expand...
Click to collapse
If the battery gets hot, the effects are similar to those of overcharging. You know how bad overcharging would be. So I recommend you to take a deeper look into the issue.
Taking it to service center is a good idea; but since the service center would wipe your tablet clean anyway, so why don't you check if there are any background processes that have been causing this acting up lately? Messengers like whatsapp/line, screen lock apps, weather and news widgets, adware/free games with ad are examples of the apps that would be taking background resources, you would like to check whether you have installed new apps like that.
Most background processes usually won't cause your battery to act up, except when they got stuck on something. You probably couldn't fix it by yourself so you would better track them down and remove them.
TasKiller is one of the app that could show you background processes. There are countless others good app for the same purpose.
My tablet has been on charge (while off) for almost 24hrs and still hasn't fully charged yet.
What gives?
uncle_buckman said:
My tablet has been on charge (while off) for almost 24hrs and still hasn't fully charged yet.
What gives?
Click to expand...
Click to collapse
Do you use the stock wall charger to charge it?
Today while I was in a store and my Defy was in airplane mode, with the screen off in my back pocket - it got super-dooper hot - so hot I felt it through a gel case and my jeans.
I took it out and started to take off the case to get to the battery in a panic but by the time I got to it, the phone had already turned itself off (which is nice if that is some kind of safety feature).
It is a genuine, factory original motorola battery so this is not a problem with a fake battery - it was made in 2011.
Only thing I did recently was upgrade to CyanogenMod 7.2 on the 17th or so but I have been using it since then without problems.
Overclocking options are not on, I'm running with the stock Cyanogen cpu settings.
Airplane mode was on, gps was on, but that's it.
Remember, it wasn't doing anything, screen off in my pocket.
Any ideas? This was kinda scary - glad the phone shut down.
Is there any history of defective batteries from Motorola?
Maybe some program was running and loaded the cpu which drained the battery. The heat came from the cpu and the cpu is just next to the battery.
Sent from my MB525 using Tapatalk 2
Hmmm. Maybe, but when I yanked the battery out it was like a hot potato. Very very hot. I doubt the cpu could overheat it that thoroughly, more like it was being drained fast or possibly shorting?
I turn my phone on every morning from a cold start, the only program that was running was "MyTracks" (hence the gps being on)
I guess I'll keep an eye out for any problem reports with 7.2 on the Defy
It just worries me the times the phone is not in my pocket so I won't feel it overheating.
Is there any kind of app I can run that detects long periods of CPU use and shuts down the phone BEFORE the thermal trigger from the battery?
Does the Defy know it's own battery temperature by any chance? Maybe an app for that for the status bar?
I'm on CM 7.2 and my phone gets hot when I use 3G...
_ck_ said:
...gps was on...
Click to expand...
Click to collapse
There's your potato burner Phone heats up a lot when GPS is on... On the top of that, you kept it in a gel case in your pocket on a (probably) hot day... What did you expect?
Thanks for all the ideas/feedback.
I turn the gps on every day and I have never had this hot battery problem before.
In fact it's on now while I test it and it's not even warm.
This was definitely an unusual event of some kind.
I just updated MyTracks in case there was some kind of bug fix.
As far as 3G, I do not have a sim in this phone (cannot afford any dataplan right now) and I keep it in airplane mode to keep the cell part off.
I found another similar report of the Defy strangely overheating the battery from last year:
http://forum.xda-developers.com/showthread.php?t=1023423
I had this issue abt 2 weeks ago.... it was under my pillow and I went to grab it to check something n I had to let it go at once... I was on cm7.2, my guess was I had flashed so many Roms the day before and maybe the settings of CPU changed from 1 rom to another ... but did NT have this issue again so far .. now am on miui but never knew y it was burning hot zat day
Sent from MB526 using Xda
Same problem here with cm 9; some days ago I found some stuck (blue) pixels on my device.no gps no wireless no data connectivity: it was the usb charger. It happened some months ago too and the stuck pixels disappeared but this time they are a lot....maybe I would put my device in freezer a night in order to recover my display ?_?
Sent from my MB525 using xda app-developers app
i'm still with the original phone (bought about a month ago). didn't change a thing, even not rooted.
a few days ago, was a hot day (about 32 c), same thing happen to me.
the phone was in my pocket in a rubber guard.
i guess it gets really hot in this protector... i took it down and waited a few minutes, then everything was alright.
i think this model might have some problem with overheating, so what i do is try not to leave it in the sun and take the guard on a hot day.
serfus said:
i think this model might have some problem with overheating, so what i do is try not to leave it in the sun and take the guard on a hot day.
Click to expand...
Click to collapse
Thanks for your report, especially since it was stock - but I am sure it's not a regular "running hot" problem - because I have a very repetitive weekly routine and I've never had this burning hot problem before, never in a year.
Remember if they are in our pockets, the screen is off and typically programs are not running hard so the CPU should scale down to 300mhz, which should be very cool.
I installed this very basic and simple temperature monitor to put the temp in the status bar and so far I've never seen it go above 35c
http://www.appbrain.com/app/tempmonitor-lite/org.alldroid.apps.tempmonitorlite
It polls every 15 seconds which is all I need and no permissions.
Apparently the Defy only has a battery temp sensor and not a CPU temp sensor?
I'd like a better monitor with vibration alarm and a log but I am tired of all the overbearing apps with ads and "buy the pro version" nonsense and such.
Hi!
I used to have a CM7 with a chinese (really-really cheap) 1800mAh battery after the stock ROM (2.2 CEE); and I haven't experinced things like that. Mostly I measure the temp. with a widget (Elixir 2) and it was always below 35°C if I'm not wrong.
My tab was sitting on my desk in sleep mode. I picked it up and tried to unlock it and it seemed frozen for a moment, then let me swipe. It seemed fine after that. A few hours later I picked it up again and it was very sluggish and the back was warm and my battery at 15%. (it was at about 50% a few hours earlier) I rebooted it and it's fine, but I am wondering what caused it to get so warm. I know that happens when it's being used a lot but it was just sitting on my desk. There were no apps running in the background. Any ideas what could have happened? I haven't installed anything new in the last few days.
Are you running stock?
djmatt604 said:
Are you running stock?
Click to expand...
Click to collapse
And we assume ICS (apart from stock)? But there are quite a few threads on the increased power-consumption on ICS (Stock and other). So might be some run-away process or service. What is the highest battery-user according to the device info? And how much? Has ICS gotten rid of the dialer goof-up for non-3G tablets?
P.S. Like the off limits (slap on the wrist) of the better half's tablet, same here :laugh:
Yes assuming ICS...my bad lol. It was more of a "tell me everything you've done lately" type of question. I have noticed increased battery consumption myself but that's why I switched ROMs today. If I lose a couple extra ticks on the battery in exchange for the performance I've gotten I can live with that
And yes I will lose whatever part of my body touches the wife's tablet. She's heard enough profanity in the last month as I got my feet wet hahaha!
Yes, stock ICS. Sorry for omitting that!
The highest battery user is the screen. I'm thinking maybe the tablet froze and I didn't notice it. Having the screen on constantly for several hours is probably not battery friendly. I'm concerned because it's still warm between the Samsung logo and the camera on the back. It's not hot or anything, just noticeably warm, and it's just sitting there charging. I'm not using it.
I have (or you can do it yourself) to delve in other threads, where they dismantle the tablet. Is it a P7500, or just a plain P7510? I thought that the 3G radio-part was about there where it still is hot (residual heat probably by now), but I can be mistaken. If this is a P7510, then I do not know what would be there at that location. It certainly is not the battery, that is much lower...
I will try and find what is about there, but other solder-happy soldiers must be able to tell you exactly what is located there.
Anybody?
BretonGirl said:
Yes, stock ICS. Sorry for omitting that!
The highest battery user is the screen. I'm thinking maybe the tablet froze and I didn't notice it. Having the screen on constantly for several hours is probably not battery friendly. I'm concerned because it's still warm between the Samsung logo and the camera on the back. It's not hot or anything, just noticeably warm, and it's just sitting there charging. I'm not using it.
Click to expand...
Click to collapse
A friend of mine had a similar problem with his galaxy s2 locking up and needing a long-press power reboot to get it working again on stock ICS 4.0.3. The culprit ended up being android os in battery stats, but the problem has not happened again yet. As for the warmth on the back of your tab, this is caused by the processor running at full speed for extended periods of time. If your screen is on, and you are interacting with it a lot, then you should expect the upper left back side of the tab to heat up and not cool down until you stop using it. This is normal... if it continues to stay hot for long periods of time after the screen is off, then you are probably not going into deep sleep mode because of a rogue app. If you are rooted, install better battery stats and CPU spy to do a little more digging. Good luck, I hope you figure it out and get your tab running the way you would like it to.
I figured out what it was. I'd seen the Ebook icon in my app tray and tapped it. It took me to the Samsung App store. I left immediately but that visit apparently installed "Samsung Push Service" which was taking 62% of my battery and causing 100% wake lock. What a POS! I uninstalled it and everything is normal again. Won't ever visit the Samsung App store again.
I froze that app. Ugly. Glad you worked it out!
I never cared able these heating stuffs ever, but for last 2-3 days the device is getting heated really badly, while charging it. The screen is so hot, and the upper backside around the camera section too, it's almost untouchable! The earpiece too! I checked battery temp and it's 41°C, so the issue is not there. How to check the CPU temp? And I think it's happening since upgrading to 4.3, because on 4.2, I never felt this issue. One more interesting thing is, the device is heating much more when the screen is off and the phone is charging, when I use it the device gets less hot, I think it's because the phone is charging at 1.9 amp when screen is off, and at 1.2 amp when the screen is on and the phone is being used.
Anyone else facing this issue? It's kinda scary.
Sent from my GT-I9500 using Tapatalk
I have heard of battery drain issues post 4.3 but think Samsung have released updates to fix it. I have had a similar problem a couple of times; I think both times are related to flashing ROM/kernels. On both occasions (today been the most recent) all cores (using CPU-Z to monitor) were been used at high loads and this obviously made the phone hot. Reflashing the kernel worked before but I have just changed LTE/WCDMA/GSM (auto connect) to WCDMA only and this had an instant effect on the cores. Perhaps that's worth a try.
I had this once on 4.2.2 , start charging at midnight and then early morning was extremely hot whith burn smell .
Are you using custom kernel ? maybe it's the fast changing feature !!
And yes I had this issue when it was on sleeping mode while charging , I disable it after that so it stay awake while charging and disable the fast charging .
Sent from dish washer