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Recently I have noticed on several occasions that my phone have gotten hot and started eating away the battery. One time I had around 30% battery and the phone was laying in my pocket. I felt the heat through the pockets and took it up to see what's up. It then had 0% battery and turned itself off.
When looking at battery use in settings, it's hard to pick out one specific application that might do this. If anything it would have to be "Android system", right now it's tied with the screen on 40%, but I charged the phone an hour ago and I haven't used the screen much.
Edit: I should add that the same thing just happened, from 99% to 89% then it stopped. That's why the information above about battery usage is relevant.
Do you think it might be hardware-related, like a partial short circuit or something, or is it most likely a software thing?
Bump. 10 signs.
Had mine for a few days, have not experienced anything like what you describe
I have though felt the screen get hot when turned on full brightness and reading a e-book on it (white - black text)
Well this is while it's laying in my pocket, with the screen off, so it's not the screen. (it's the battery that gets hot)
Take it back.
[Funny story that probably isn't relevant. I had a dodgy micro sd card that made my phone drain battery super fast and as a result my phone got incredibly hot. Took it out and it's back to normal.]
Sounds software related to me, your android system should definitely not be 40% of your battery. It sounds like some rogue app/process is utilizing your cpu and thus your battery very heavily. If you select the "Android system" in the battery usage list, does it not give you a further breakdown of what is included in that that is using your battery? Also, what does it say for the cpu time for the android system?
May be firmware bug
I've had this happen to me a few times when I was running the original firmware. In some early firmware there was a bug related to switching between wifi and 3G, which would get it stuck so that you couldn't toggle wifi on or off. The times this happened to me, it was also stuck in the wifi bug (although I had the wifi bug and it didn't drain the battery).
I now run the newer firmware (JG4) and both problems have stopped.
I've had this problem with my asian i9000 since the beginning. The app called Top showed me that it is ksoftirq/d that is running and System Panel showed me that the cpu was running at 100% at 1ghz.
At first the only solution seemed to be restarting the phone. However some information shared on this forum led me to try restarting wifi which also works. For that thread search for "ksoftirq/d."
David
Sent from my GT-I9000 using XDA App
I have had the "stuck wifi" bug, but I'm not sure if it was happening the last time this happened. I'll check it out the next time.
There's no official firmware update on Kies for Norway yet, so I think I'll wait for one.
Had exactly the same problem and tracked the culprit - it was Fancy widget in my case. Removed it, installed Beautiful widget and all is well since
Sent from my GT-I9000 using XDA App
That might actually be it. If I'm not mistaken Fancy Widget had 30% battery consumption when I checked. I deleted it just to see if it would make a difference. So far so good.
Some details:
Fancy Widget will hit the 100% cpu on auto-refresh if there's no data connection available (either wifi or cellular). It seems there are 2 bugs with Fancy Widget; it ignores "auto-refresh off" option and it tries to connect to server even when offline.
A dirty work around would be to set refresh time to let's say 12 hours and make sure to manually refresh at least once every
That makes me even more convinced that Fancy Widget is the culprit. I usually have cellular network disabled (APNDroid On/Off Widget) to save battery and my wifi connection keeps loosing connection, probably due to some software bug in XXJF3 stock firmware.
I am charging it using the provided USB cable and adapter, but the phone is almost too hot to touch when I wake up some mornings. It quits charging because of it, but it still remains very hot. It happens irregularly and I cannot pinpoint the problem.
I am running completely stock AT&T.
Can someone help me figure this out?
Edit: some more info: The cell radio has turned off with this issue at least twice. It turned back on after a restart. Airplane mode was not enabled, so I am not sure why this would happen. When charging at night, I run the Sleep As Android sleep tracker, and it's on my bed, but I run it every night and I am not sure why it would only give me problems occasionally (every ~10 days or so). It's possible I bump it in my sleep, but would that cause this issue? When I wake up it is fully plugged in and too hot to continue charging.
toastthemost said:
I am charging it using the provided USB cable and adapter, but the phone is almost too hot to touch when I wake up some mornings. It quits charging because of it, but it still remains very hot. It happens irregularly and I cannot pinpoint the problem.
I am running completely stock AT&T.
Can someone help me figure this out?
Edit: some more info: The cell radio has turned off with this issue at least twice. It turned back on after a restart. Airplane mode was not enabled, so I am not sure why this would happen. When charging at night, I run the Sleep As Android sleep tracker, and it's on my bed, but I run it every night and I am not sure why it would only give me problems occasionally (every ~10 days or so). It's possible I bump it in my sleep, but would that cause this issue? When I wake up it is fully plugged in and too hot to continue charging.
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Is there any wakelocks keeping your device running? Look into it. Something could be keeping your device running in the background. Or perhaps something is turning on your device.
Worst case scenario is that you have a defective device in which I suggest you go see an att repair center or call att so they can exchange it due to defective issues. The replacement will be free.
Sent from my GT-I9505G using Tapatalk 2
Febby said:
Is there any wakelocks keeping your device running? Look into it. Something could be keeping your device running in the background. Or perhaps something is turning on your device.
Worst case scenario is that you have a defective device in which I suggest you go see an att repair center or call att so they can exchange it due to defective issues. The replacement will be free.
Sent from my GT-I9505G using Tapatalk 2
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Well put, reminds me of a scenario I had on my SG3. When I had first gotten my SG3 awhile back it would give me temperature warnings every so often (2-3) days. I found the problem to be that a couple of my applications were running background processes that were very cpu extensive and keeping my device awake. This caused the CPU to ran at nearly max frequency throughout the entire night, thus over heating my phone. I wiped every application I had and reinstalled and set background permissions to not allowed for a majority of them; this resolved the problem.
I haven't experienced this at all on my SG4, but I still disallow a lot of my apps to use background processes unless necessary. I did read online that some of the SG4 devices did have a defective heat sync though, however I'd try removing all your applications until you're down to bare minimal stock and reinstalling and keeping an eye on what could possibly be running your CPU up when your phones locked.
- Br4nd3n
I'm guessing that it has a spike in temperature, it turns off the charging, but it still is plugged in so the temperature keeps going up. Hottest I saw on it was around 65 deg. Celsius.
I attached a few graphs of this happening on different occasions (one portrait is the same day as the landscape). The fast drop-off is where I unplug it and let it cool and reinsert the charging cable, and it surprisingly does not get hot again. No restart is necessary, so I doubt there is much to do with the phone's CPU but I could be wrong.
Hi guys.
Edit : I am running fully stock, non-rooted and OTA updated Kit Kat 4.4.2
I noticed that a high Android OS usage and wake lock (in my case) comes from the cpu Governor locking all cores to 2.0-2.3 GHz despite nothing happening on the phone. I checked this using the system monitor tool. I have screenshots added.
The problem is that I can't see what apps are causing the governor to never make the other 3 cores go offline. When I check "Top apps" everything is at 0% cpu usage. What is causing the cores to never go offline and stay locked at 2.0GHz+ and drain battery?? It is only when this happens that I get high Android OS usage. A reboot fixes it, but it happens randomly. When I feel that my battery is draining badly, I check my cpu in system monitor and see all cores online even when idle. I just don't get it.
I'm thinking it may have something to do with dashclock/BBS or some combination, as every time this happens, the BBS add on in dashclock shows 0% drain (so it seems broken when it happens).
Please help!
Sent from my SM-N9005 using xda app-developers app
EddieN said:
I noticed that a high Android OS usage and wake lock (in my case) comes from the cpu Governor locking all cores to 2.0-2.3 GHz despite nothing happening on the phone. I checked this using the system monitor tool. I have screenshots added.
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Hello. Have you found a solution to this problem? I thing I have something silmilar, although in my case the IDLE cores stay at 300MHz and they do not enter offline as they should. I have a rooted phone with original 4.4.2 firmware and Xposed framework installed, but it doesn't seem to be a problem (the cores get stuck after some time).
this is caused by samsungs dvfs (google it for more information). just download and enable the dvfs disabler module from xposed framework
I have xposed enabled, dvfs disabler its enabled.
My minimum 300mhz became 1.19-2ghz, so cpu is stuck.. Onlu one core usually. I find out one app that does that, camera. I enter camera app then exit, cpu minimum core is 1.95ghz and stay there always, till restart.
What rom do you have? I'm on xxuend3
And on what governor? I'm on interactive.
And usually if you move cpu minimum /maximum sliders, cpu became unstuck.
So you have few cores stuck, move sliders up and down and stuck became unstuck
Regarding the top apps not showing, I've found the usage reporting on the device to be entirely broken.
I've had it report, in 6 seperate apps, that Android was using 25%... whilst I'd been playing Oh Edo! Towns for 6 hours straight. It listed that game, which is quite heavy, as 2%.
No way in hell that's accurate.
25% in deep sleep, yes. There's nothing else running, so 25% of 1% per hour for idle processes makes sense. But not during gaming.
Sent from my SM-N9005 using Tapatalk 2
Hello! About 1 day works well for me on the phone, then the middle two seeds get stuck 1,9MHz. Only a restart helps ...
Kernel bugs??
Im on skyhigh kernel. On this one cpu wont stuck.
I found that Camera app makes cpu stuck at maximum clock, like 2.2 or more. The fix, restart phone or use cpu sliders and move them a bit, then cpu became unstuck. Use android tuner, faux, etc for moving cpu clock sliding
Note 3 rooted knox 1, my last Samsuck crap. I want freedom. Stay away from Samsuck!
I found an small annoyance. When i wake up the phone i see an lag... Sometimes its about 5sec,sometimes lower or more. How can i fix this? Tried to raise cpu clock on touch... The same
Note 3 rooted knox 1, my last Samsuck crap. I want freedom. Stay away from Samsuck!
Hi,
I'm experiencing some problems when using Android Auto. I think that my device is overheating.
Maps becomes very slow after about 30 minutes driving. Sometimes the phone is going very hot and is unresponsive during few minutes. I checked the cpu temp after a drive today and got values close to 60c. I'm running LOS 14.1 right now. I was using CM 13 previously and the heating issue wasn't so huge.
So I wonder if anyone else is running Android Auto successfully on this device ?
update : I disabled thermal throttling using Kernel Aduitor. Android Auto is running perfectly fine now. Phone is heating a lot (80c for CPU but 25c for battery) What is the thermal throttling ? Is it a kernel feature ? Is it the same as thermald ? Is it tunable ?
marcjero said:
Hi,
I'm experiencing some problems when using Android Auto. I think that my device is overheating.
Maps becomes very slow after about 30 minutes driving. Sometimes the phone is going very hot and is unresponsive during few minutes. I checked the cpu temp after a drive today and got values close to 60c. I'm running LOS 14.1 right now. I was using CM 13 previously and the heating issue wasn't so huge.
So I wonder if anyone else is running Android Auto successfully on this device ?
update : I disabled thermal throttling using Kernel Aduitor. Android Auto is running perfectly fine now. Phone is heating a lot (80c for CPU but 25c for battery) What is the thermal throttling ? Is it a kernel feature ? Is it the same as thermald ? Is it tunable ?
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Click to collapse
I would be careful with turning that off. Thermal throttling basically checks how hot your phone's internal components get, and when they reach a dangerous level it forces the device to slow down.
Turning it off means that your device WILL work at hotter temps, but you risk damaging the CPU, screen, battery, etc.
The reason the phone was getting slow is due to 1. the screen being on all the time, 2. the GPS constantly updating.
The N4 wasnt meant for such tasks, so it overheats.
One solution: get a mount that sits on top of the airvents, so that cool air blows over it.
HubrisRev5 said:
I would be careful with turning that off. Thermal throttling basically checks how hot your phone's internal components get, and when they reach a dangerous level it forces the device to slow down.
Turning it off means that your device WILL work at hotter temps, but you risk damaging the CPU, screen, battery, etc.
The reason the phone was getting slow is due to 1. the screen being on all the time, 2. the GPS constantly updating.
The N4 wasnt meant for such tasks, so it overheats.
One solution: get a mount that sits on top of the airvents, so that cool air blows over it.
Click to expand...
Click to collapse
Well the screen is off with Android Auto. But of course the GPS is working. The battery temp stays low at about 25c. The screen is not hot. Only the back of the phone (the upper part close the camera) is getting hot. Thermald is still active and there is still a protection against battery overheating.
I really think that the Lineage kernel is too much aggressive regarding thermal throttling. I tried other kernels but unfortunately they slow down clocks too much when the screen goes off.
marcjero said:
Well the screen is off with Android Auto. But of course the GPS is working. The battery temp stays low at about 25c. The screen is not hot. Only the back of the phone (the upper part close the camera) is getting hot. Thermald is still active and there is still a protection against battery overheating.
I really think that the Lineage kernel is too much aggressive regarding thermal throttling. I tried other kernels but unfortunately they slow down clocks too much when the screen goes off.
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Btw, there are some stupid gadgets you can buy on aliexpress to help with this issue. Like this weird phone stand with a fan behind it, https://www.aliexpress.com/item/Portable-3-in-1-Holder-Stand-Radiator-Mobile-Phone-Rings-Holder-2000-mA-Bracket-Power-Bank/32824399237.html?ws_ab_test=searchweb0_0,searchweb201602_3_10152_10065_10151_10068_10130_10344_10345_10547_10342_10343_10340_10341_10548_10192_10541_10540_10190_10307_10301_10303_10060_10155_10154_10056_10055_10539_10538_10537_10536_10059_10534_10533_100031_10103_10102_10142_10107_10324_10325_10084_10083_10179_10312_10313_10184_10314_10073,searchweb201603_25,ppcSwitch_2&btsid=ee6398e3-e7a6-4bd7-938c-34f6e0cdef52&algo_expid=21d9a156-0a93-470d-acbc-d807892ce6e8-0&algo_pvid=21d9a156-0a93-470d-acbc-d807892ce6e8 or just buy a holder than fits over the airvents in your car https://www.aliexpress.com/item/Anker-Air-Vent-Magnetic-Car-Mount-Highly-Adjustable-Phone-Holder-for-iPhone-SE-6-6s-7/32824593598.html?ws_ab_test=searchweb0_0,searchweb201602_3_10152_10065_10151_10068_10130_10344_10345_10547_10342_10343_10340_10341_10548_10192_10541_10540_10190_10307_10301_10303_10060_10155_10154_10056_10055_10539_10538_10537_10536_10059_10534_10533_100031_10103_10102_10142_10107_10324_10325_10084_10083_10179_10312_10313_10184_10314_10073-10102_10000902,searchweb201603_25,ppcSwitch_2&btsid=d12c851e-a69b-48e1-b282-0733c26584ae&algo_expid=ab74c295-fb60-418d-9e32-5e32f75bd993-0&algo_pvid=ab74c295-fb60-418d-9e32-5e32f75bd993
Yep, I have the same issue. I was originally using slickrom stable release, then switched to weeklies and the issue showed up. Slickroms is based on lineage, so switched to lineageos and I've been seeing the same problem. Haven't found a solution to this problem (using Android auto with nexus 4 and lineageos).
Hi guys and girls,
I've got my A5 a few days back, and at start it worked great. I've messed up with a lot of software, tried everything out, and instead of uninstalling everything I thought it'd be best to do a factory reset. That's where my problems started.
While I set up the phone and installed all the apps (updated) that came with the phone, connected to a 100Mbps optical internet via AC wifi, I lost about 15% of battery. Okay, who knows what the phone needed to do, lets move on.
Next day I was just using Whatsapp, messaging with my gf, and the phone was a bit warm with 20-25% brightness (auto-off). The battery temperature was 32-33C, and I used an infrared thermometer and measured 33.5C on the back of the phone at the Samsung logo. Then I just browsed the settings, setting up my phone a bit more, and it was still getting warm, getting anywhere between 31 to 33C on the battery and around 33C with an IR thermometer. I still can't say much about battery drainage but the phone is getting pretty warm even while browsing the web or doing non-intensive tasks.
Does the A5 2017 get warm or is it just me? Should I RMA it?
Have a520f, 33C is near average. But it's also dependent on the weather. Fast charging or charging with the screen off will raise it. If it wasn't always like that, maybe something in the background is using the CPU, checking for updates or notifications. The CPU/GPU is like a car engine, running at various 'speeds' and 'weights it is carrying', and it does get warm. Only if it gets hot, then it's a problem. Many apps could do those checks once the screen is turned on. Uninstalling/changing settings will only help with battery life (percent drain), the temperature is ok. The a520f (and a510f) also has touchboost, temporarily raising the CPU clock when the screen is touched. Might be noticeable with background tasks while using a keyboard.
Thanks friend. Didn't know about "Touchboost", you opened it up for me a bit there.
While the screen is off, It's perfectly fine. Once I take it in my hands, it starts to get warm around the Samsung logo. It's probably screen + apps + nowhere to dissipate heat, but I wasn't noticing it at start. I've only had it for a couple of days now. I don't know about the battery drainage, with a charge lasting me ~40hrs with 7h SOT I wouldn't say it's draining at all - though my screen is at low brightness, 1/4 max.
Just wanted to see what you other guys are getting as I thought it was high. My ambient is around 24-25C all year long. I've seen tests where people weren't getting more than 30C at all, but as you said, it's the ambient that dictates that.
Idk if this is only with mine but sometimes I turn the phone off completely and put it to charge and it happens that it can reach like 35°C without touching it. Now the phone is plugged, I only browse with chrome facebook.. and it is like 37°c. That can happen when it is not plugged too. Using wifi seems to be better though.
I dont think I have an important battery drain because it can last about 6-8h SOT normal usage.
Onr other thing, when I turn on the mobile hotspot, the battery drains way more than usually and heats up too.