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So the other day, I forgot to close an app down--the Schwartz Unsheathed, if you are curious--and when I fished my phone out again, it was hot. Very, very hot. Battery information indicated 41C which, in the grand scheme of things, isn't that high (wouldn't worry me with a PC's graphic card, for example, or CPU) but it felt incredibly warm to the touch. Fine, I shut the app down, removed the battery cover and let the phone cool down. No problem.
It might be the apps I've been trying since then, but I have been experiencing performance and stability issues. Things slow down sometimes. On the Desire ROM, Rosie kept force-closing every now and again. On Enomther's which as we all know is just about the stablest thing that ever stabled, Launcher2 does ditto (the Launcher Dock may be the culprit, though, as it seems to do some weird **** and I've removed it since. Fiddling around with BetterCut also seems to cause force-closes). So could that be it? Did the phone overheat (but if so, shouldn't it have shut itself down) and now something's broken? Getting antsy. :/
41°C should not be a problem, but consider that this was a measurement from the battery pack and that a sensor like that can easily go +/- 5 to 10 degrees.
so well, some chip on the nexus could have gotten way hotter than 41°C. maybe something fried, some defect that was already there and now its really broken.
still, this can be a bit subjective, the phone will seem broken if you think it's broken you can always do a factory reset, reflash the current rom and try from there.
Yeah, could just be my own jitters--I'd experienced issues before, usually caused by a ROM or whatever--and lately my PC's been having problems, so it might well be some kind of placebo effect. Unless it and my N1 magically entered a symbiosis or something.
Thanks for the quick reply.
once my phone accidently fell onto my bed and under my pillow while i was charging it over night and i woke up at 4 am and found a burning out nexus under my pillow. i unplugged it and nothing seemed damaged but it still worried me.
I think if you are worried about it and you are rooted you should install SetCPU. It has a profile designed so that is you his a preset temp it will down clock your CPU.
I use setCPU to save my batterylife ie.
100% - 50% run full cpu on demand.
Idle/Standby downclock to 400Mhz
50% or less down clock to 600Mhz on demand
20% or less down clock to min.
I also complement this with locale for low bat. dimness, wifi off, bluetooth off. etc.. etc.. ( a little off topic I know)
Well, looks like updating More Icons Widget was what did it; things seem to work okay now.
Was wondering what the maximum advisable temperature is?
Maybe the phone has protection for the CPU? but Li-ion batteries dont like heat, it shortens their effective life.
my battery reached 44.3C yesterday on a 4 hour journey in the car using co-pilot and the phone actually net discharged despite the fact it was on a 1A USB charger for the entire journey - about 80% at start of journey and 20% at end.
I've installed setcpu now and set the temperature profile to drop the max speed to 768 if temp is >44C and another one to drop the speed if power is less than 30%, may need further tweaking though. This was not in my car and the back of the phone was effectively unventilated, in my car I have an open backed holder near an air vent.
Ok, I can't put my finger on to the reason my phone is getting hot - no other temp threads I could find covered it.
It's 6 months old and it just started happening.
Build: FRG83 v 2.2.1
Power off, place in cradle - charges fine - stays cool.
Applied power (while in cradle) - stayed cool - battery was 100% already - woke up this morning after 6 hours and it was hot.
Pulled battery out, let sit until cool. Put in and powered - now is running cool.
Yesterday I picked it up and for no reason (that I could tell), it was hot and chewing through the battery.
Uninstalled all recently installed apps (don't have much on it right now)
I don't use exchange for mail (just gmail).
Has anyone else seen this odd behavior. There has to be some rhyme or reason to this. I'll keep uninstalling apps, but I'm not seeing anything running that is unusual...
Thx for any help
-P
pwkpete said:
Ok, I can't put my finger on to the reason my phone is getting hot - no other temp threads I could find covered it.
It's 6 months old and it just started happening.
Build: FRG83 v 2.2.1
Power off, place in cradle - charges fine - stays cool.
Applied power (while in cradle) - stayed cool - battery was 100% already - woke up this morning after 6 hours and it was hot.
Pulled battery out, let sit until cool. Put in and powered - now is running cool.
Yesterday I picked it up and for no reason (that I could tell), it was hot and chewing through the battery.
Uninstalled all recently installed apps (don't have much on it right now)
I don't use exchange for mail (just gmail).
Has anyone else seen this odd behavior. There has to be some rhyme or reason to this. I'll keep uninstalling apps, but I'm not seeing anything running that is unusual...
Thx for any help
-P
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Click to collapse
Contacting HTC for a new device wouldn't be a terrible idea, since it seems that everything is darn near stock and not your fault.
I did think of that, but am having trouble believing that it is a hardware problem...
Kinda my fall back plan...
Did you try to run something like SystemPanel and see if there's any app that has your Nexus running at 100% speed all the time?
Ahh, nice app - never saw that...
I'll monitor it now - it started getting hot again then it cooled off. Said it was 32C - but nothing out of the ordinary was running... (Except amazon mp3 - not sure why it is out there, I wish I could make that go away)...
You can't make Amazon stop, you have to uninstall it (which is possible if you're rooted).
See what the frequency is - if it's idling around 300 MHz, you're ok.
Yeah, I know about the amazon thing...
Weird - started talking on the phone and it got hot (and sucked serious power) - ended call and now it's cool again.
Every time I go and look at CPU use it's low (starts high as I switch task but then drops to almost nothing which I would expect)
It might be a crappy battery.
I'm trying to figure out why the CPU would get hot if the battery is bad... Temp is definitely coming from the case below the battery in the trackball area...
I have a lot of experience with LiPo's - usually takes much higher A rates to get them to heat up - we aren't even draining them at .5C.
Now, this battery did come from the wife's N1 - but this problem did not coincide with the swap...
Only time I feel the area around the trackball heating up (the CPU) is when I'm doing something intensive, and not that often. Did System Panel show anything was using CPU? You could also watch top in a term or via adb, and watch for network traffic.
You have a rogue app or bad hardware. Have you tried doing a factory reset and seeing if it also happens? Are you using a stock ROM? You mention the ROM in the OP but there are a lot of custom ROMs that are of that build.
This is a stock 2.2.1 on unmodified hardware.
I swapped batteries back and still get the same thing.
I was obviously thinking rogue app, but I don't see anything running that is 'bad'... Also it is hard to tell from the aforementioned app what the CPU is really doing when it's going crazy, as the CPU spikes when switching to the app and then settles back down to 200-300 MHz...
The other weird thing is that it seems to get really warm when charging off the PC now (didn't look close at system details at that point - was the other day)... Not even having the SD card mounted...
Will see what top shows next time I have it plugged in.
No, didn't do a factory reset yet. Was hoping to find the culprit first, but it's not looking good...
Okay, so.. I have a Samsung Galaxy Exhibit II 4G.
I have it rooted with the root stock from this thread.
With that said, I've had this phone rooted for several months now. Since January or so. Over the course of that time, the phone has run without fault for months. Recently, I've had issues with my battery draining (as well as charging) far more quickly than it used to. I assumed this was an issue with the battery, because there was a slight bulge in it, so I bought a replacement battery that came yesterday. I charged it full (until the phone said it was 100%), from about 5% charge. It took the normal time (as the phone did when it was new) to charge, of just over 2 hours. It died almost completely about 2 1/2 hours later. Currently, I have my phone charging and it's at right around 90%, after just over an hour of charge from 20%. It used to take far longer to both charge, as well as die. What the Hell is going on?
Just a few notes:
This is not the result of heavy usage (for power drain). I say this because even as the phone was idle while I slept, it died on its own accord sometime throughout the night.
My bluetooth, WiFi, and GPS are almost always off, unless I'm using one of them for some purpose, and I haven't used any of those things since the new battery was installed.
There are no applications running in the background, aside from Facebook. I know this because I'm using Advanced Task Killer to kill everything, and it keeps showing Facebook as if it's opening itself for some reason. This is another issue I'm concerned with, so if anyone knows why or how to remedy this, I'd be appreciative of knowing. Otherwise I'm likely to just delete this unnecessary application.
This is not an issue where the phone is reading an incorrect charge over an extended period. It literally is dying and charging faster than normally.
When the phone is rebooted, whether it be through "Restart" (app from Google Play), via the phone Power key, or removal of the battery, the phone drops around 20% battery life when the restart is complete. The absolute reverse happens (it gains 20%) when restarting with the phone plugged into an AC charger.
Is it possible that this has something to do with the root being outdated, or maybe something updated and I'm unaware? I sincerely have no idea what's going on, as this is the first phone I've ever rooted before. I'm sorry for the long post, but I wanted to give as much information as possible.
It sounds like the battery you bought may be defective. Send it back and get a different one.
Yea sounds like you bought a defective battery. Where did you buy it from? Talk to them and see if they'll send a replacement or get another one from elsewhere
Sent from my Nexus 7 using xda app-developers app
For the past couple of weeks, my rooted Nexus 6 (64GB, rooted, unencrypted user partition, carrier Verizon) was running hot for no apparent reason, thus, poor battery performance. I literally cannot figure out what was causing it, and start turning down the application notification down to a minimum. That helped a bit, but does not resolved the issue. I also cannot figure out why I was running out of storage space.
A couple of days ago I noticed that cache usage on storage uses 17GB. After I cleared it, everything seems to run much better. The unit no longer runs hot for no apparent reason, and battery power retention works better. Anyone else experiencing this?
Not with the cache, but one day (only once thank god) my phone overheated and shut off on me. Just had the nexus in my pocket and when I went to look at the time it was almost to hot to touch. I turned it back on after it cooled down and haven't had a problem since. The phone also was having programs crash a lot on me as well right before this happened. My phone is rooted and I did the update to 5.1.1. I haven't had the issue or crashing since. I doubt that's what stopped it from happening again but still.
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MisterChuffy said:
Once mine did this too I charged and it God really hot. It wasnt able to touch it really. Unfortunately I wasn't able to see the temperature but it has to be something about higher than 60*°C. I turned it after a while and had to wait like 20 minutes then it was normal. I started again and since then no issue.
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i get mine to 90C all the time, on purpose, and i can hold it fine. 60C+ is easy to hold. and it takes seconds for it to cool down.
My N6 gets very hot occasionally -- almost too hot to handle. I've never had a phone behave this way. In spite of some assurances that it has an auto-shutdown mechanism if it gets dangerously hot, I'm still concerned.
Isn't heat bad for electronic components? I've read that Li-Ion batteries degrade faster when hot.
RealDogBoy said:
My N6 gets very hot occasionally -- almost too hot to handle. I've never had a phone behave this way. In spite of some assurances that it has an auto-shutdown mechanism if it gets dangerously hot, I'm still concerned.
Isn't heat bad for electronic components? I've read that Li-Ion batteries degrade faster when hot.
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If getting that hot have rogue app or something else locking CPU wide open. I know having Bluetooth enabled with nothing to pair to will cause this. It is your setup and not a regular issue with device.
prdog1 said:
If getting that hot have rogue app or something else locking CPU wide open. I know having Bluetooth enabled with nothing to pair to will cause this. It is your setup and not a regular issue with device.
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It's not Bluetooth -- I keep that off unless I'm using it. I don't think it's a rogue app either. One incident that I remember: I was updating a lot of apps over wi-fi and charging (Qi wireless) at the same time. My thought was that the Qi charging was generating some of the excess heat (since it's not as efficient as just plugging in the micro-usb) plus the CPU was working hard with the updates.
RealDogBoy said:
It's not Bluetooth -- I keep that off unless I'm using it. I don't think it's a rogue app either. One incident that I remember: I was updating a lot of apps over wi-fi and charging (Qi wireless) at the same time. My thought was that the Qi charging was generating some of the excess heat (since it's not as efficient as just plugging in the micro-usb) plus the CPU was working hard with the updates.
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Yes QI charging causes heat and will eventually eat your battery. Should never download and QI charge at same time. Looking to execute your device. Lol
My Gear S2 operates as normal as it should, however even at idle, the battery drains rapidly. Once the unit is completely dead, I then dock it and it will say 60% charge, which I know is wrong given that the unit will not power on undocked, meaning the battery had been completely depleted. Unit charges normally but I think a bug is preventing it from reaching actual 100% since it believes 0% to be 60%. Is there a way I can fix this without tearing apart the unit or replacing the battery?
same issue
I'm having the exact same issue, did a factory reset today updated all apps still same. I use a basic watch face, turn brightness to 2, everything off except Bluetooth and can get about a day of use . Is anyone else having this issue and has a solution?
Battery dead
So update on this issue, (on the Gear App on the phones most updated version) I went to the basic watch face in gray scale, then turned off all notifications, under gear connection, I unchecked sync wi-fi profiles, and under about gear I unchecked marketing information. I'm not sure which of those if any made the difference but at the end of day one 16 hours of use I was at 70%. So on the second day I tried a colorful watch face with animations, and 16 hours in I was at 63%. So one of those changes I made may have fixed my issue.
I did uninstall and reinstall the app on the phone, as well as reset the watch itself, neither seemed to work until I did the above changes. Hopefully that will help someone, or at least help to find out what is causing the massive battery drain.
dbrothers1 said:
So update on this issue, (on the Gear App on the phones most updated version) I went to the basic watch face in gray scale, then turned off all notifications, under gear connection, I unchecked sync wi-fi profiles, and under about gear I unchecked marketing information. I'm not sure which of those if any made the difference but at the end of day one 16 hours of use I was at 70%. So on the second day I tried a colorful watch face with animations, and 16 hours in I was at 63%. So one of those changes I made may have fixed my issue.
I did uninstall and reinstall the app on the phone, as well as reset the watch itself, neither seemed to work until I did the above changes. Hopefully that will help someone, or at least help to find out what is causing the massive battery drain.
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With all that I have done with my gear, most I was able to get was about 10 hours. Though today it did to something odd. It died completely like it normally does, (it dies anywhere between 3-10% ish, and when it does die, its completely dead) so I placed it on the dock. Two minutes later I check and it reports 34%, "thats odd" I think to myself so I undock it and power it up thinking I would get no more than 5 minutes battery life on it since it couldnt possibly have that much charge in two minutes. I also expected it to report a low percentage but it didnt. I placed it back on my wrist and it continues to run about 10 minutes later down to 25% and still going! I find it odd. My current leakage issue I think remains and might be why the watch doesnt last as long. I might end up getting a new battery and see. My top battery user: watch faces at ~45%, even if the face hardly came on, and I am using one with a custom background that is mostly pure black.
Drain
That does sound pretty weird. I had a custom watch face installed "Mr Time" and started with a brand new install and I'm slowly adding things back in.
I would suggest a fresh install of the phone app, and the watch, using the classic face black and white. If you can get similar results to what I have then one by one start customizing it. I tried a lot of things to get it to work, over several days and that's what worked for me. I even uninstalled all of the watch faces I want using from the app"i felt that Mr time was still running in the background, even though it probably wasn't.
Good Luck