Develop Bugs

40 degrees Celsius?

My Galaxy Nexus often increases its heat to around 42 degrees Celsius (108 fahrenheit) constantly with minimal use (light 2D gaming for about 5 minutes), surfing the app store and playing around with the menus for a 10 minutes. I have installed the battery monitor widget application (free) which tells me everything and gives a timeline of different temperatures the phone reaches.
Constantly the phone is 30 degrees Celsius (86 Fahrenheit) and above, even during minimal use of apps (only running one app at a time, I selected the phone to only use 2G networks and it has no data plan).
This seems very very hot for a phone. My Galaxy S2 doesn't get past 28 degrees celsius (82 fahrenheit) under very heavy use whilst on 3G. My HTC Mozart is the same as the Galaxy, it barely gets above this temperature. Is the Nexus supposed to get this hot?
So far my battery life is set at 17 hours battery life with minimal phone/texting on 2G (literally 2 text messages and 1 phone call per day), 30 minutes of light 2D gaming and zero music or videos being played. There are no programs running in the background and the brightness is set at 40% or below.
EDIT: Even on standby without use for hours the phone has NEVER gotten below 26 degrees celsius (78 fahrenheit) .

I'm hoping someone could share info on the heat of their devices/the normal range of heat that these kinds of devices should be putting out. It sounds interesting that this much heat can actually be created, more elaboration would be better though.

bumping for answers for op.

I noticed a dramatic difference in the temperature from my evo 4g. Some potential causes:
* high stock voyages (there is a great thread in the Dev section about uv kernels)
* when running modaco's brightness patch it got worse for me.
* since it happens with the screen off, it is probably not tht...

83mck said:
EDIT: Even on standby without use for hours the phone has NEVER gotten below 26 degrees celsius (78 fahrenheit) .
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What's your ambient temperature?
Absolute temperature doesn't tell us much, what's useful is the delta between device temp and ambient temp.

Chirality said:
What's your ambient temperature?
Absolute temperature doesn't tell us much, what's useful is the delta between device temp and ambient temp.
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Click to collapse
The room temperature is air conditioned around 18 to 25 degrees celsius (64F to 77F). The phone should not be hitting above this range, especially on standby. It should not reach 40 degrees Celsius whilst texting/app surfing on 2G.

Same issue here.
My Nexus One's battery is at 24C (plugged in, not charging).
And by GNex's battery is at 37C (plugged in, charging)
Okay 37 is fine but 42 is not :/

right now I have flashed a few roms and am browsing tapatalk.. at 34 Celsius. Just applied my undervolts though so we will see
Sent from my Galaxy Nexus using xda premium

Mine increase more than 42c when using too.

Just bought the phone and mine seems to overheat too much... going to buy a case....

Battery says 46 degrees cel...

also i noticed on galaxy nexus it get too hot around the camera on the back and the earpiece on the front.
noticed the problem mainly when in an area with weak reception. or while charging the phone even with good reception.
its something with the radioROM or hardware.
any suggestions??!!

normal
Its normal! 76F when not in use 90-101 in use 101-120 with charger and using . I called Samsung . My euro gs2, at&t gs2 and my skyrocket all have the same temps remember this is a very thin plastic phone with battery right there behind tiny plastic cover . Think of it like this dose ur computer get hot when u use it?? ? Have u ever even thought bout that? No cause ur not holding it in ur hand .

+1
This is a dual core phone, it is going to run hot because it's a dual core processor with no cooling other than dissipation. It's not a problem unless your phone is actually crashing because of it. I've seen mine get up to 46C during long periods of gaming/charging.
I expect the hardware has been developed to tolerate these temperatures or we'd see a lot more "my phone overheated and now it's a brick" posts or even "my phone exploded into flames" posts. Have only seen a couple of the former and none of the latter.

Running hot after root, rom and maybe 'incorrect charger'
So like others here my GSM version Galaxy Nexus phone is quite hot at the top right corner back and front, near the camera. Only when the screen is on. Battery drops very rapidly too.. like 1% every 30-45 seconds...
This heat is brand new. I recently rooted and romed the device after the recent ICS update cause signal loss when the screen was off. I tried AOKP, various kernals and have now returned to the original backup of android 4.0.2. The heat continues with the screen being on, through all of this. Doing nothing, wifi connected... just on. Screen off no issues. No apps are installed except stock. Default Kernal again.
I also noticed i plugged the phone in with my blackberry playbook charger at the same time as all of this. The specs on that are playbook charger output is 5V @ 1.8A..
I notice a few other people posting about this so want to know if this might be rom related somehow, or if perhaps ive done something to the hardware from the charger. I've tried a spare battery that was not used with the charger at all and the heat continues.
There was no heat at all like this before this last 24 hours so its not 'normal use'. Promise Hope someone has some possible suggestions to try

Mine is at 31 right now.. listening music and xda... if play games it goes to ~35 if I plug it in it gets hotter than 40...
Sent from my Samsung GNexus <3

nexus heat issues?

does anyone else is nexus get really hot when surfing the internet or doing anything else. I've only been using the phone for 15 minutes and it's already dropped 10 percent. idk its up to about 118 degrees
is this pretty common with this phone?

Clock speed
Usage
Screen brightness
Those affect how your gets.
Are u an aggressive user and clocked it up high and always have high brightness.

No only 15% brightness no over clock. New phone just got it today just seems to heat up asap...and gets over 110 degrees easily. The of course causes major battery drain. Prob normal for this phone just never experienced heat like this before

Isn't the processor on the Gnex designed to do a panic restart when it reaches 110 C's ? :/ yes its a big issue i've noticed that the phone doesn't get that hot when using stock Rom weird...

I don't get over 110 and I'm OCed to 1.3gHz, auto brightness on.
Sent from my Galaxy Nexus using Tapatalk 2

The only time mine gets abnormally hot is during a phone call. Im even underclocked and it still does.

getting hot in a smart phone this powerful is normal. I had the S3 for week, that sucker gets hot!

I agree with OP. Mine gets noticeably warm when scrolling through large non-mobile web sites. It cool when scrolling through apps like tapatalk, market, reader apps. It must be something to do with browser engine

Mine gets quite warm as well. Especially with games like gta 3 and Final Fantasy 3.
Sent from my Galaxy Nexus

please don't forget that you're holding a device with a dual core CPU, clocked at 1200 MHz, without fan, water-cooling or anything. ever tried touching a computer-cpu?
(don't do that, lol)

Mine can easily get to 110 degrees. It definitely has a heat issue. My Razr Maxx can get warm too, but not hot like this GNex. It hurts to palm sometimes !
LTE / Camera / Data stuff . / Charging all contributes to this.
Thank god it has removable battery, since battery life will be significantly dampened by heat.

Mine gets hot since Jelly Bean... Maybe "project butter" is intended to melt our phones like butter

remember, battery temp and cpu temp are two completely different things. cpu temp will get lowered automagically in the gnex when it reaches a certain point(heat throttling is enabled in the gnex, unless you disable it), and it will shut down the cpu when you reach 110C, not 110F, that is a safety feature. 110C is 230F btw.

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 ZTE Axon 7 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 have not noticed any excessive heat. Probably the coolest of all my past phones.

tele_jas said:
I have not noticed any excessive heat. Probably the coolest of all my past phones.
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Agree it has been the coolest phone I have owned. The other phones I have owned have both got very hot which has made the phones very slow (CPU throttling?). The Axon 7 has stayed quite cool to the touch even when using things like GPS and camera.
Nexus 6p (toaster)
Oneplus One (hot)
HTC M7 (hot)
iPhone 5s (mild)
Axon 7 (cool)

Warm/Hot
Got my Axon 7 today been using it for a few hours was warm throughout my usage, gave it a charge and was really warm/hot. Battery life wasn't all that great either, people are getting 5-6 SOT with a full charge, it came with 85% out of the box and used it for around 2~2.5 hours and it was down to 20% with brightness below 50% wasn't impressed. I'm hoping it'll get better with more use as this phone is pretty great

If you play all day of course you wont get 6 hrs of SoT.

tele_jas said:
I have not noticed any excessive heat. Probably the coolest of all my past phones.
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Click to collapse
0gati said:
Agree it has been the coolest phone I have owned. The other phones I have owned have both got very hot which has made the phones very slow (CPU throttling?). The Axon 7 has stayed quite cool to the touch even when using things like GPS and camera.
Nexus 6p (toaster)
Oneplus One (hot)
HTC M7 (hot)
iPhone 5s (mild)
Axon 7 (cool)
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Click to collapse
Yup and Yup....
Comparing the Axon 7 to previous devices, A7 win by a long shot.
I play PSP Games (this is hard on CPU+GPU) and doesn't transform into a toaster.

I've gotten 6.5 hours of screen on time, but this is with conservative use: web browsing/video watching with extremely low brightness settings.
When playing Star Wars KOTOR, I've only gotten ~3.5 hours of play time. Brightness heavily affects the drain speed.

it gets barely warm enough to notice it working at all.

Got hot in pocket while doing nothing, GSam showed 38-40 celsius. Started today, exactly after 1 week when I got it. While using it it gets warm a little, but nothing serious compared to my old phones.

Axon 7 Battery Temperature
Hi guys my Axon 7 is running the latest update (7.1.1) and my battery's temperature is 29°c when idling and the room's temperature is also 29°c, but when I start using social media apps like Instagram and Snapchat ,it gets around 37° and if I use Chrome for web surfing it gets around 40°c, so is this normal for Axon 7? And also if I use so heavy multitasking like downloading over mobile data, watch online videos , two sims both activated , and ten other apps open at the same time but no games , the temperature sometimes goes up to 45°c. What is your Axon 7's battery temperature in different situations?please also mention the room temperature that you're in. ( to see the temperature go to settings/ power manager/ battery cooling)

With Gsam Battery, it says 43 celcius when charging or reddit/games...
It was under 35c a few weeks ago

It is normal for many phones.
And the temp alert settings of the axon7 are very useful as I sit in sunlight very often and most times forget about phone temperature

My Axon 7 heats up fast when I used aze
The battery monitor reports overheat warning after 20 minutes of using the GPS app called Waze. The temp would reach 46°C easily. I don't get this issue when I use the Google Map.

I have seen temperatures in excess of 50C when in direct sunlight in my hot car while using GPS (no A/C in my car).
Playing Hearthstone in my warm room can exceed 40C, which is where I have the warning set to.
I hope I'm not slowly killing the device or battery...

My A2017G gets a little hot (but definitely usable) when charging. Unplug it and it'll cool down pretty quickly.
But then that might be because I keep the phone on all the time (got an always-on screen app running just for screen-off OK Google)

This phone doesn't get hot. You guys don't know what's hot until you have used a Xperia M4 Aqua
My Xperia M4 Aqua could reach temps of steady 82C while gaming and 74C while watching Youtube

I've been getting issues using mine as a GPS with here maps. Battery heat warnings and yes, it felt hot, not to mention the app is causing navigation problems a lot.
Installed TomTom, see if it works better. It has some better UI and settings already.
If it doesn't run cooler I might buy a dedicated GPS but really don't want another device in the car.....

RobboW said:
I've been getting issues using mine as a GPS with here maps. Battery heat warnings and yes, it felt hot, not to mention the app is causing navigation problems a lot.
Installed TomTom, see if it works better. It has some better UI and settings already.
If it doesn't run cooler I might buy a dedicated GPS but really don't want another device in the car.....
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That's really weird, my phone never gets hot while using GPS and driving. Are you sure you're not putting the phone in direct sunlight?

Yeah, of course it had sun on it. You need it able to access GPS signal reliably for good navigation.
It was in a screen mount. I was using it heaps today on TomTom app with much more success and less heat. Seems there's something not right with Here Maps.

RobboW said:
Yeah, of course it had sun on it. You need it able to access GPS signal reliably for good navigation.
It was in a screen mount. I was using it heaps today on TomTom app with much more success and less heat. Seems there's something not right with Here Maps.
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Click to collapse
You don't need the sunlight directed onto the device.
I got a mount on my with a shieldscreen to protect it from sunlight so it won't get cooked. I am guessing you're enjoying a cooked phone while driving

Mi5s starts throttling at low temperatures

Hello. I have noticed that my mi5s has some lag while playing asphalt 8 even at medium settings. After doing some benchmarks with 3DMark I realized that there is a drop in performance at relatively low temperature.
At "Ice storm unlimited" I have a score around 30,000 when the cpu is cool. However when I hit a 36 degrees of Celsius I am around 27,400. Furthermore, if the temperature increase at 39 Celsius , the performance drops even more and 23,500. This gets even worse when I hit 40+ Celsius where the score drops under 20,000 and if I semi-covered it with a cloth to reach higher temp it gets around 16,600 at 45 degrees of Celsius. After that it need to cool down to 33 degrees of Celcius to restore its performance
Needless to say that these temperatures are very easy to reach when you are playing a game. Has anyone noticed something similar? Any suggestions?
I have the 3/64 version with the 7.7.20 developers. Same issues were faced with the 7.7.6. . I have not tested in depth with the global rom but I think I had similar issues (it was only for a day). The room temperature is around 30 degrees of Celsius.

Antretng said:
Hello. I have noticed that my mi5s has some lag while playing asphalt 8 even at medium settings. After doing some benchmarks with 3DMark I realized that there is a drop in performance at relatively low temperature.
At "Ice storm unlimited" I have a score around 30,000 when the cpu is cool. However when I hit a 36 degrees of Celsius I am around 27,400. Furthermore, if the temperature increase at 39 Celsius , the performance drops even more and 23,500. This gets even worse when I hit 40+ Celsius where the score drops under 20,000 and if I semi-covered it with a cloth to reach higher temp it gets around 16,600 at 45 degrees of Celsius. After that it need to cool down to 33 degrees of Celcius to restore its performance
Needless to say that these temperatures are very easy to reach when you are playing a game. Has anyone noticed something similar? Any suggestions?
I have the 3/64 version with the 7.7.20 developers. Same issues were faced with the 7.7.6. . I have not tested in depth with the global rom but I think I had similar issues (it was only for a day). The room temperature is around 30 degrees of Celsius.
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Click to collapse
If you're okay with the high temperatures then you could disable all the CPU thermal throttles from any kernel manager app, though you need to be rooted.
Sent from my MI 5s using Tapatalk

abirftw said:
If you're okay with the high temperatures then you could disable all the CPU thermal throttles from any kernel manager app, though you need to be rooted.
Sent from my MI 5s using Tapatalk
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Click to collapse
I was thinking something similar but I do not want to disable it fully but just increasing the threshold by 2 or 3 degrees of Celcius. I am rooted but I am not sure how I can do the modification. From some quick search that I have done there should be a file named thermal-mplampla.conf (I do not remember the exact name) where you can modify it but I am not sure by how much should I change the respective lines for just a 2 or 3 degrees increase.
Anyone that have been playing around with thresholds and have any tips or guide before messing around?

Antretng said:
Hello. I have noticed that my mi5s has some lag while playing asphalt 8 even at medium settings. After doing some benchmarks with 3DMark I realized that there is a drop in performance at relatively low temperature.
At "Ice storm unlimited" I have a score around 30,000 when the cpu is cool. However when I hit a 36 degrees of Celsius I am around 27,400. Furthermore, if the temperature increase at 39 Celsius , the performance drops even more and 23,500. This gets even worse when I hit 40+ Celsius where the score drops under 20,000 and if I semi-covered it with a cloth to reach higher temp it gets around 16,600 at 45 degrees of Celsius. After that it need to cool down to 33 degrees of Celcius to restore its performance
Needless to say that these temperatures are very easy to reach when you are playing a game. Has anyone noticed something similar? Any suggestions?
I have the 3/64 version with the 7.7.20 developers. Same issues were faced with the 7.7.6. . I have not tested in depth with the global rom but I think I had similar issues (it was only for a day). The room temperature is around 30 degrees of Celsius.
Click to expand...
Click to collapse
First of all, that isn't the CPU temperature but the battery temperature. This phone actually has fantastic thermals due to its aluminum back and well placed SOC. No wonder you're getting throttling, you live in 30°C and you're playing games, what do you expect? Every phone on the face of the earth will throttle to that level. Just saying, your CPU is running probably around 70-80°C while playing intense games. So if you continue to play, it will eventually heat up the rest of the phone.
40°C destroys a batteries lifetime and 45°C everyday will reduce your battery within half a year which is why they throttle phones. Hell my One plus 3 in 30°C weather will throttle like crazy and that's the best phone in terms of throttling. Its normal. Stop playing crappy games like Asphalt 8 in 30°C and go enjoy the sunny weather instead.

crzykiller said:
First of all, that isn't the CPU temperature but the battery temperature. This phone actually has fantastic thermals due to its aluminum back and well placed SOC. No wonder you're getting throttling, you live in 30°C and you're playing games, what do you expect? Every phone on the face of the earth will throttle to that level. Just saying, your CPU is running probably around 70-80°C while playing intense games. So if you continue to play, it will eventually heat up the rest of the phone.
40°C destroys a batteries lifetime and 45°C everyday will reduce your battery within half a year which is why they throttle phones. Hell my One plus 3 in 30°C weather will throttle like crazy and that's the best phone in terms of throttling. Its normal. Stop playing crappy games like Asphalt 8 in 30°C and go enjoy the sunny weather instead.
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Actually the truth is somewhere in the middle. I have used an app called "cpu temperature" but if I check the battery temperature it shows exactly the same degrees. So I guess it mistakenly shows the temperature of the battery. Do you have a more reliable app to check cpu temp?
On the other hand, 30 degrees of Celcius is not that high. In the winter usually we do not let the room temperature drop under 20 degrees since we use heating. Nevertheless, I will let it as it is for now and check again after 5 or 6 weeks where the temperature should be cooler.

Antretng said:
Actually the truth is somewhere in the middle. I have used an app called "cpu temperature" but if I check the battery temperature it shows exactly the same degrees. So I guess it mistakenly shows the temperature of the battery. Do you have a more reliable app to check cpu temp?
On the other hand, 30 degrees of Celcius is not that high. In the winter usually we do not let the room temperature drop under 20 degrees since we use heating. Nevertheless, I will let it as it is for now and check again after 5 or 6 weeks where the temperature should be cooler.
Click to expand...
Click to collapse
You need a rooted phone to see actual CPU temperature. The best way to do this is get an app called simple system monitor (blue app icon) and go in temperature zones and you'll find a bunch of sensors there. There's a bunch of them that are for the CPU and you kinda have to figure it out yourself (I don't know exactly which one it is, one of the tz_sensor ones) by running a CPU benchmark and finding the ones that show the highest temperature. If you were to remove thermal throttling, and maxed out the CPU and GPU, you will see your CPU hit around 100-110°C and your phones gonna shut down for protection. And I'm in Canada so 30°C is extremely high haha.

Is this normal?

My phone is running 50 or 60 celsius and all I'm doing is downloading apps to set up the device. Is this normal?

It runs around 40 celsius on idle when doing nothing

No, how did you measure that?

switcher said:
No, how did you measure that?
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LOTS of apps available in the play store do that. Accubattery, for one.

Things are now better and I believe thst the heat is a software issue. My phone now runs around 30 when idling at no use and gets to around 40 when downloading apps. CPU is around 50s when watching videos, but battery stays in the 40s. The reason why I believe this to be a software issue is because my temperatures when playing games, doing benchmarks, etc are similar to when I watch videos, which is a much higher workload. I also don't experience too much throttling as I was still able to get approx. 267 000 in Antutu.

Days Tech said:
Things are now better and I believe thst the heat is a software issue. My phone now runs around 30 when idling at no use and gets to around 40 when downloading apps. CPU is around 50s when watching videos, but battery stays in the 40s. The reason why I believe this to be a software issue is because my temperatures when playing games, doing benchmarks, etc are similar to when I watch videos, which is a much higher workload. I also don't experience too much throttling as I was still able to get approx. 267 000 in Antutu.
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You should anticipate that heavy graphics (gaming, movie watching), etc. is going to raise the temperature. That's perfectly normal.

hgoldner said:
You should anticipate that heavy graphics (gaming, movie watching), etc. is going to raise the temperature. That's perfectly normal.
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Yeah, but watching a Youtube vifeo raises it just as much as playing PUBG Mobile on HDR settings or running an Antutu Benchmark. My overall temperatures keep improving, though. Might have been an issue with the data transfer feature.

To update, everything works fine now. It seems I just had a rough start.