[EXPERIMENT] S4 Overheating and how it affects battery drainage [PLEASE PARTICIPATE] - Galaxy S 4 Q&A, Help & Troubleshooting

Dear Community,
In this thread I want to gather a sample to investigate to what extent the S4 suffers form overheating and how this affects the battery drainage/life. I urge you to participate as I am collecting a sample to submit a formal complaint to Samsung to raise awareness to an issue that is widespread among S4 users and to push Samsung to address this issue accordingly. In order to provide your sample please follow the instructions below and report back in this thread with the relevant information. Please first indicate which variant you have: Quad/Octa (i9505 or i9500)
Please download BatteryGraph (it's a great app to measure Battery drainage accurately) https://play.google.com/store/apps/details?id=com.modroid.battery
Run it once after download to initiate logging. Let it run for 10 minutes to allow the graph to built up a bit.
Then please Download Antutu benchmark run the benchmark fully exactly 5 times back to back (continuously). After that please enter the stock dialer (as quickly as possible) and enter *#0228# and post the temperature (external thermistor) after the tests in order to determine the maximum temp that the device reaches under continuous stress.
After that, please enter the app Battery Graph and zoom into the graph to the maximum level. Scroll slowly along the curve at the time when you performed the Benchmarks and tell me if there are interruptions or 'skips' where the battery drops 1 or 2 percent at a time and where the App does not Register a graph for those drops. Sequence/scroll slowly along the graph 1% at a time and make sure that the battery dropped 1% at a time. Please report of the battery has dropped more than 1% at a time. Please make a screenshot of your battery graph in the App and post it here for collection. I will analyze the graphs subsequently and compile it in SPSS to submit our findings.
If there is a drop of 2 or 3% at a time it means that you are experiencing Battery Percentage skips/cliffs which could indicate either a defective battery or defective device which might be the cause for the extensive heat development.
Thank you for your participation. Hopefully Samsung will listen to us and address the issue to give us the perfect S4 that we deserve.
Best,
Thomas from Germany

exxi said:
Dear Community,
...
Thank you for your participation. Hopefully Samsung will listen to us and address the issue to give us the perfect S4 that we deserve.
Best,
Thomas from Germany
Click to expand...
Click to collapse
That battery app polls for battery level changes every 5 minutes by default. I think almost every device will experience a drop of more than 1% every 5 minutes under constant stress testing. You can change it to poll every 1 minute in the settings, which you might want to mention, but even so isn't it entirely possible to lose more than 1% a minute with everything turned on (GPS, Gestures, etc.) and ~17 minutes of constant cpu/gpu stress testing? It's a nice idea but it doesn't sound like it would yield very accurate results, unless I've misunderstood your post.
EDIT: Nevermind, I see how you can step through it 1% at a time now.

Meltus said:
That battery app polls for battery level changes every 5 minutes by default. I think almost every device will experience a drop of more than 1% every 5 minutes under constant stress testing. You can change it to poll every 1 minute in the settings, which you might want to mention, but even so isn't it entirely possible to lose more than 1% a minute with everything turned on (GPS, Gestures, etc.) and ~17 minutes of constant cpu/gpu stress testing? It's a nice idea but it doesn't sound like it would yield very accurate results, unless I've misunderstood your post.
I've also noticed that you cannot really zoom in very far and at the highest zoom setting the % is still displayed in multiples of 10. Kind of tricky to differentiate between a 1% and a 2% drop.
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Click to collapse
You might be right, what would you suggest in order to yield more accurate results? I suspect that the heat is directly linked to a very quick drainage of the battery. How can we measure how much it affects the actual battery drainage?

exxi said:
You might be right, what would you suggest in order to yield more accurate results? I suspect that the heat is directly linked to a very quick drainage of the battery. How can we measure how much it affects the actual battery drainage?
Click to expand...
Click to collapse
I'm not criticizing you or anything and I'm not saying it's a bad idea, It's just that obtaining accurate battery results are tricky as everyone's device is different, has different settings enabled and are running different kernels/ROMs/etc. Batteries also seem to get more efficient as time goes on so newer devices might suffer from higher battery drains.
I'll run the battery temp test now though and see how hot mine gets!

I like your critical thinking, obviously you are right it is very trick but I believe the heat test itself could be very indicative. In the meantime I will try to find a better way to measure battery drainage.
So everyone please try to run the benchmark multiple times and submit the temperature.
The most I was able to get was 52C
Thanks

Pre-test: 29.9°C
After 3 tests: 35.0°C
After 5 tests: 37.7°C
After 7 tests: 38.4°C
After 10 tests: 38.8°C
The temperature increased less and less so I don't know how much higher I could get it.
Also, an easier way to poll the temperature is to do "adb shell dumpsys battery" over ADB. The temp will be displayed as something like 388 which means 38.8°C
Edit: It might be worth noting that the top of the phone, around the camera but more so on the screen side (so the cpu?) got incredibly hot. Almost too hot to touch. Kinda worrying, but I have spent the last half an hour stress testing, I guess

Meltus said:
Pre-test: 29.9°C
After 3 tests: 35.0°C
After 5 tests: 37.7°C
After 7 tests: 38.4°C
After 10 tests: 38.8°C
The temperature increased less and less so I don't know how much higher I could get it.
Also, an easier way to poll the temperature is to do "adb shell dumpsys battery" over ADB. The temp will be displayed as something like 388 which means 38.8°C
Edit: It might be worth noting that the top of the phone, around the camera but more so on the screen side (so the cpu?) got incredibly hot. Almost too hot to touch. Kinda worrying, but I have spent the last half an hour stress testing, I guess
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Click to collapse
Thanks for your contribution Meltus! Really appreciated my friend. Also thanks for the ADB command it does make it easier but I doubt that you've read the correct temp as 38 appears to be quite low compared to what i got. Is your S4 a i9505 ?

exxi said:
Thanks for your contribution Meltus! Really appreciated my friend. Also thanks for the ADB command it does make it easier but I doubt that you've read the correct temp as 38 appears to be quite low compared to what i got. Is your S4 a i9505 ?
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It's also the temperature that dialling *#0228# gave me (I double checked they were both the same each time). And no, I have an i9500, running Omega ROM, if that helps.

Might want to mention the elementary precaution of taking off all case covers except for the stock case before testing to prevent insulation effect of case covers increasing battery temperature...
While you're at it you might want to standardize room temperature to 25 degrees C... I know for a fact that my device would never get hot no matter what it does if running in the freezing cold air-con'd metro...

What about brightness settings and whatnot. Should all be the same, so you have to give a standard.

Pre-test: 36.2°C
After 3 tests: 51.4°C
After 5 tests: 54.6°C
After 7 tests: 56.9°C
dafaq right??? im really annoyed at sammy for this overheating S4... after 7 times testing the Antutu, i stopped and LITERALLY put my S4 in the lower compartment of the refrigerator to get it cooled down quickly cause im pretty sure the heat sensors inside would definitely be having some testing errors and the temperatures would be really really higher than that. even when i swipe between different homescreens the phone gets to 47°C which is really annoying.
can someone pls for the LOVE OF GOD provide any solution to this freaking problem? i have been worrying a lot for spending my $730 on an overheating phone...
i have S4 i9500 Exynos version
---------- Post added at 10:02 AM ---------- Previous post was at 10:01 AM ----------
oh and i have half the brightness all the time for everything and auto brightness turned off

Are you talking about the battery temperature? If so something is extremely wrong with your unit, my battery temperature never went past 45 even with high stress.
If in case you are pointing out the cpu temperature then there is no reason to freak out because the cpu can handle upto 90c + and can cool off pretty fast
Edit:
And why on earth you ran Antutu for 7 times continously lol? None of the current generation phones can handle it for 7 times on a row afaik
Sent from my GT-I9500 using Tapatalk 4 Beta

bala_gamer said:
Are you talking about the battery temperature? If so something is extremely wrong with your unit, my battery temperature never went past 45 even with high stress.
If in case you are pointing out the cpu temperature then there is no reason to freak out because the cpu can handle upto 90c + and can cool off pretty fast
Edit:
And why on earth you ran Antutu for 7 times continously lol? None of the current generation phones can handle it for 7 times on a row afaik
Sent from my GT-I9500 using Tapatalk 4 Beta
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Click to collapse
You can read the CPU temp instead of the battery temp?

bala_gamer said:
Are you talking about the battery temperature? If so something is extremely wrong with your unit, my battery temperature never went past 45 even with high stress.
If in case you are pointing out the cpu temperature then there is no reason to freak out because the cpu can handle upto 90c + and can cool off pretty fast
Edit:
And why on earth you ran Antutu for 7 times continously lol? None of the current generation phones can handle it for 7 times on a row afaik
Sent from my GT-I9500 using Tapatalk 4 Beta
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Click to collapse
im talking about the cpu temps. i ran antutu cause it was asked to be done for this thread.
and why would it be silly to run any app 7 times on the flagship device? its made to run the apps as much as people want thats why we pay a huge amount of money for these devices dont we? or else we should buy the low end devices
just saying cause i had heating up issues with devices before infact my last device Note 2 used to get a lot hot but not as much as this S4...
i desperately need a solution for this...

Joe0Bloggs said:
You can read the CPU temp instead of the battery temp?
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Click to collapse
Yes we can read cpu temp and battery temp separately, use system tuner app to read cpu temperature.
Sent from my GT-I9500 using Tapatalk 4 Beta

aami.aami said:
im talking about the cpu temps. i ran antutu cause it was asked to be done for this thread.
and why would it be silly to run any app 7 times on the flagship device? its made to run the apps as much as people want thats why we pay a huge amount of money for these devices dont we? or else we should buy the low end devices
just saying cause i had heating up issues with devices before infact my last device Note 2 used to get a lot hot but not as much as this S4...
i desperately need a solution for this...
Click to expand...
Click to collapse
You are not buying a flagship device just to run Antutu n number of times, do you? yes I accept we do pay huge money but that doesn't mean we can push the limit of a mobile and complain about it from a general user perspective . , it can be only done for experimental purposes and to understand the power /thermal envelope provided that it's done in the right way.
But how does running Antutu 7 times matches a real life scenario? Highly unlikely isn't it?
We are already pushing the limits of raw cpu power for a mobile, raw a15 cores are power hungry and often tend to heat faster than previous generation. Hence arm introduced the big little. The mobile heats up during heavy stress, but but that's expected with these powerful cores right? I'd better utilize the power wisely when needed rather than using it all the time. The cpu indeed gets hotter when stressed, it's the same With my s3 too the cpu temps reached upto 80,there is built in throttling mechanisms which will take of the cpu once the cut off temperature is reached. Have seen many benchmarkers these days using freezer test due to the thermal throttling in new gen devices. Yes the s4 heats up pretty quick than other mobiles but also cools down pretty fast and I think that's the way it is destined to work.
Hei one more thing, did you note how long it took to fallback to normal temps?
Sent from my GT-I9500 using Tapatalk 4 Beta

bala_gamer said:
Are you talking about the battery temperature? If so something is extremely wrong with your unit, my battery temperature never went past 45 even with high stress.
If in case you are pointing out the cpu temperature then there is no reason to freak out because the cpu can handle upto 90c + and can cool off pretty fast
Edit:
And why on earth you ran Antutu for 7 times continously lol? None of the current generation phones can handle it for 7 times on a row afaik
Sent from my GT-I9500 using Tapatalk 4 Beta
Click to expand...
Click to collapse
We were doing it to see if there was a correlation between excessive battery drain and overheating batteries. Mine never got any hotter than 40 and I have pretty great battery life. The OP was seeing temps of 50+ and I'm guessing he has poor battery life.
Could there have been a few batches of bad batteries sent out with devices?
Sent from my GT-I9500 using xda app-developers app

Meltus said:
We were doing it to see if there was a correlation between excessive battery drain and overheating batteries. Mine never got any hotter than 40 and I have pretty great battery life. The OP was seeing temps of 50+ and I'm guessing he has poor battery life.
Could there have been a few batches of bad batteries sent out with devices?
Sent from my GT-I9500 using xda app-developers app
Click to expand...
Click to collapse
Are you talking about battery temperature or cpu temperature? Haven't heard any stories so far regarding damaged battery, but may be possible.
Sent from my GT-I9500 using Tapatalk 4 Beta

Thanks for the Updates > and clear step to analize the issue to fix in next Sw update
Thanks for your efforts ]
Dear Community,
In this thread I want to gather a sample to investigate to what extent the S4 suffers form overheating and how this affects the battery drainage/life. I urge you to participate as I am collecting a sample to submit a formal complaint to Samsung to raise awareness to an issue that is widespread among S4 users and to push Samsung to address this issue accordingly. In order to provide your sample please follow the instructions below and report back in this thread with the relevant information. Please first indicate which variant you have: Quad/Octa (i9505 or i9500)
Please download BatteryGraph (it's a great app to measure Battery drainage accurately) https://play.google.com/store/apps/details?id=com.modroid.battery
Run it once after download to initiate logging. Let it run for 10 minutes to allow the graph to built up a bit.
Then please Download Antutu benchmark run the benchmark fully exactly 5 times back to back (continuously). After that please enter the stock dialer (as quickly as possible) and enter *#0228# and post the temperature (external thermistor) after the tests in order to determine the maximum temp that the device reaches under continuous stress.
After that, please enter the app Battery Graph and zoom into the graph to the maximum level. Scroll slowly along the curve at the time when you performed the Benchmarks and tell me if there are interruptions or 'skips' where the battery drops 1 or 2 percent at a time and where the App does not Register a graph for those drops. Sequence/scroll slowly along the graph 1% at a time and make sure that the battery dropped 1% at a time. Please report of the battery has dropped more than 1% at a time. Please make a screenshot of your battery graph in the App and post it here for collection. I will analyze the graphs subsequently and compile it in SPSS to submit our findings.
If there is a drop of 2 or 3% at a time it means that you are experiencing Battery Percentage skips/cliffs which could indicate either a defective battery or defective device which might be the cause for the extensive heat development.
Thank you for your participation. Hopefully Samsung will listen to us and address the issue to give us the perfect S4 that we deserve.
Best,
Thomas from Germany[/QUOTE]

bala_gamer said:
Are you talking about battery temperature or cpu temperature? Haven't heard any stories so far regarding damaged battery, but may be possible.
Sent from my GT-I9500 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Battery temperature. If someone's experiencing temperatures in excess of 50C and bad battery drain it would indicate a problem.

Related

Is the Nexus 4 really overheating?

I know many people have been saying the low benchmark scores on the Nexus 4 are due to "thermal throttling" but I don't really believe this. It's supposedly based on the optimus g, and if that doesn't suffer from this thermal throttling issue, then why would the Nexus 4? I personally believe it's just due to the software. People are also saying that an update won't boost the performance by that much, but I'm not sure what to believe.
So do you guys really believe that the nexus 4 is over-heating and under-clocking itself, or do you believe it is just in need of an update?
It may be a faulty unit from that reviewer, I only recall one review saying it overheated. The software is also to blame. I made a post in another thread about the performance with these pre-release software versions the reviewers have.
http://forum.xda-developers.com/showthread.php?p=33634026#post33634026
Unfinalized software on all these review devices is probably the bottleneck. Not to mention benchmarks have zero bearing on anything ever.
And Testing units and software do have a tendency to carry heavy logcats and monitoring software... I remember from the ICS days how "heavy" most leaks would run progressively getting better by the update ...
Nospin said:
Unfinalized software on all these review devices is probably the bottleneck. Not to mention benchmarks have zero bearing on anything ever.
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Click to collapse
Whilst benchmarks shouldn't matter too much, when this beastly specced phone is getting worse scores than the msm8960 with adreno 225, then it will obviously raise some concerns.
E3SEL said:
I know many people have been saying the low benchmark scores on the Nexus 4 are due to "thermal throttling" but I don't really believe this. It's supposedly based on the optimus g, and if that doesn't suffer from this thermal throttling issue, then why would the Nexus 4? I personally believe it's just due to the software. People are also saying that an update won't boost the performance by that much, but I know if I wrote the drivers for the phone, it wouldn't even start.
Do you guys really believe that the nexus 4 is over-heating and under-clocking itself, or do you believe it is just in need of an update? Also, another thing I wonder is this: is it called the nexus 4 because it has a 4" (4.7", I know) display, or is it called a nexus 4, because it is the fourth nexus?
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Click to collapse
I wouldn't say I'm good or experienced enough with Android smartphones to decide whether or not it's due to software, but I sure hope it is. I'm really only judging this particular issue by what everyone else is saying.
In regards to the sceen size and "Nexus 4" theory, I agree. Nexus 7 and Nexus 10 are a good example of device names in correlation with screen sizes here.
just wondering why did google name their nexus phone 10 wbefore the fourth one
I think it all came from a comment at Anandtech, they attempted to run all the GLBenchmark tests one after another, most web sites just chose 1 or 2 tests, usually Egypt HD. Most devices crash when trying to run all GLBenchmark test serially, it does on my Nexus 7, something to to do with running out of memory allocation.
Nexus 4 in a kind of suicidally awesome way completes the entire GLBenchmark suite in one go, but running all those test including offscreen & onscreen is a long brutal test, maxing out the SoC in a way no game is likely to do, so the fact that the device is thermal regulating itself is not that strange.
If Anandtech tested individual elements of GLBenchmark, as most other review sites do, this issue would not have occurred. In fact they admitted that the Optimus G could not run all tests consecutively, so they only tested individual elements, hence no the device didn't get downclcoked due to thermal limits. It is not good that Anandtech has this disparity in testing methodology, I like the website a lot, but some thing recently have led me to question a few things, but that is another story.
Every phone overheats nowadays so there's nothing different with the n4.
This is pretty interesting
Benchmark comparison. Once at room temp, once in freezer. Freezer scores are significantly better
http://techie-buzz.com/mobile-news/...es-show-the-real-power-of-the-s4-pro-soc.html
So yeah... Kinda does look like pretty bad thermal issues Hopefully just cause it was pre-release or something
Turbotab said:
If Anandtech tested individual elements of GLBenchmark, as most other review sites do, this issue would not have occurred. In fact they admitted that the Optimus G could not run all tests consecutively, so they only tested individual elements, hence no the device didn't get downclcoked due to thermal limits. It is not good that Anandtech has this disparity in testing methodology, I like the website a lot, but some thing recently have led me to question a few things, but that is another story.
Click to expand...
Click to collapse
But they singled out the Optimus G, because it was unable to complete more complex tests because of crashes.
mejobloggs said:
This is pretty interesting
Benchmark comparison. Once at room temp, once in freezer. Freezer scores are significantly better
http://techie-buzz.com/mobile-news/...es-show-the-real-power-of-the-s4-pro-soc.html
So yeah... Kinda does look like pretty bad thermal issues Hopefully just cause it was pre-release or something
Click to expand...
Click to collapse
Wow, that is a very interesting find. I was actually thinking that someone should do a freezer test just see if it is overheating. This article would seem to prove that it is. Those retests show dramatically higher scores, more on par with what the S4 processor should be capable of.
They said that perhaps the retail versions will have a higher tolerance for heat because they did not think they felt that hot. More testing and info is needed though.
Ryukeima said:
They said that perhaps the retail versions will have a higher tolerance for heat because they did not think they felt that hot. More testing and info is needed though.
Click to expand...
Click to collapse
To elaborate, straight from the source, in the Anandtech podcast this morning Brian commented that the phone seemed to be set to throttle at 60 degrees (for the dual-krait S4 at least it's usually around 80 afaik) and at that point the exterior of the phone was much cooler than a lot of other phones. (He talks about it at about 00:51:00.)
Something to think about.
Sjael said:
To elaborate, straight from the source, in the Anandtech podcast this morning Brian commented that the phone seemed to be set to throttle at 60 degrees (for the dual-krait S4 at least it's usually around 80 afaik) and at that point the exterior of the phone was much cooler than a lot of other phones. (He talks about it at about 00:51:00.)
Something to think about.
Click to expand...
Click to collapse
That means it's a simple tweak, and so as long as people aren't noticing excessive heat (which we would have heard from reviews) on the phone itself then is sounds like things will be fine for the release.
Yes IT FREAKING OVERHEATS
E3SEL said:
I know many people have been saying the low benchmark scores on the Nexus 4 are due to "thermal throttling" but I don't really believe this. It's supposedly based on the optimus g, and if that doesn't suffer from this thermal throttling issue, then why would the Nexus 4? I personally believe it's just due to the software. People are also saying that an update won't boost the performance by that much, but I know if I wrote the drivers for the phone, it wouldn't even start.
Do you guys really believe that the nexus 4 is over-heating and under-clocking itself, or do you believe it is just in need of an update? Also, another thing I wonder is this: is it called the nexus 4 because it has a 4" (4.7", I know) display, or is it called a nexus 4, because it is the fourth nexus?
Click to expand...
Click to collapse
I've had the phone for five days now and it definitely overheats. The last time it overheated was this morning. I got up, looked at the phone and unplugged it from the charger. Went to attend to my toddler for 20 mins and came back and saw that the phone was very warm and battery life was hit 20 percent. I did a check on battery usage under 'battery' in settings and saw that the playstore app had sucked 50% of the power of late. This is HIGHLY unusual becuase usually the screen is what sucks the most juice. I turned it off and turned it back on and it went back to being normal. During this overheating the phone stutters EXTREMELY visibly. Probably due to the massive thermal throttling of the cores. Once it cools off it goes back to being normal. This happens randomly and occurs once or twice a day. I've reported the bug to google. Otherwise the phone is superb.
That sounds like the Play Store app is misbehaving. Have you tried clearing the data?
Sent from my Nexus 4 using Tapatalk 2
Remember it's winter at northern hemisphere. So overheating might not be obvious.
Any friends in southern hemisphere (Australia) wanna chime in with their temperatures?
Paradisle said:
I've had the phone for five days now and it definitely overheats. The last time it overheated was this morning. I got up, looked at the phone and unplugged it from the charger. Went to attend to my toddler for 20 mins and came back and saw that the phone was very warm and battery life was hit 20 percent. I did a check on battery usage under 'battery' in settings and saw that the playstore app had sucked 50% of the power of late. This is HIGHLY unusual becuase usually the screen is what sucks the most juice. I turned it off and turned it back on and it went back to being normal. During this overheating the phone stutters EXTREMELY visibly. Probably due to the massive thermal throttling of the cores. Once it cools off it goes back to being normal. This happens randomly and occurs once or twice a day. I've reported the bug to google. Otherwise the phone is superb.
Click to expand...
Click to collapse
Same thing happened to me earlier today, I unplugged the phone from the charger and was extremely hot. I panic and shut the phone off. I rooted the phone last night so that was the only thing I did differently. I've had the phone for almost a week.
I also noticed the battery was draining way too quickly.
More like rogue apps... had the phone for over a month now, heavy usage every day and never once has it "overheated"as people say.
If im multitasking, like listening to music, downloading a torrent in the backgroud while playing angry birds or something the top back of the phone will get warm, but nothing unbearable if i deliberatly grab and hold the phone at that spot.
It's a glass phone... it will get warmer than most people are used to... its bascially the same glass that the new kitchen ovens use as a top surface... if you can cook on a glasstop stove... a phone heating up will be the same principle, albit on a smaller scale..
So yes, for the people complaining about heat.. then say in the next breath that they lost battery in some % form... funny how nobody is telling what they have installed as extra..or post screenshots of the battery page to back up the claim with info so we can help...large loss of battery % right away points to a rogue app somewhere.. you dont magically lose 10-20-50% whatever battery when unplugging the phone... thats something stuck running that is forcing your cpu to run at max for an extended period of time.
so as the internet expression says "fraps or it didnt happen" (screenshot or it didnt happen) lol
I am seeing battery temp reach 40C during antutu benchmark test running 4.2.2. Looks like it is only affecting a few devices. It gets warm during the benchmark test but nothing like unbearable heat.

Calling all I9500 Users with heat + battery issue

Hello Friends,
I wish to gather as much info as we can about the I9500 that are heating......because I was informed by someone at samsung that the devices manufactured after june have a revised PCB....which eliminates the overheating and battery problem.......I got my I9500 on 14th aug but in Antutu it was reching 85 degrees hence I will be getting a replacement tomorow....
Please use *#2222# to find out the HW Version : The defected ones (I assume not confirmed yet) are REV 0.6 because my friend has the same rev and his phone heats up as well........So if we succeed in getting more and more details we can go to samsung svc and ask them to atleast replace the motherboard....Cheers......
Heres What we need
Date Purchased :
Date Manufactured on the box :
HW Ver :
How hot does it get :
Does the heating affect battery life :
I dunno about 9500, but i am using 9505 and it was hot when i got it.
Ever since i switch to this kernel with proper undervolt, it doesn't run hot anymore.
http://forum.xda-developers.com/showthread.php?t=2284252
Maybe ask the guy if he have a port for 9500
Use wheatley governor (huge improvement to reduce heat since it doesn't bump all the way to max cpu all the time).
My battery life nearly doubled, can last 15-20 hours easy depending on usage.
codenamezero said:
I dunno about 9500, but i am using 9505 and it was hot when i got it.
Ever since i switch to this kernel with proper undervolt, it doesn't run hot anymore.
http://forum.xda-developers.com/showthread.php?t=2284252
Maybe ask the guy if he have a port for 9500
Use wheatley governor (huge improvement to reduce heat since it doesn't bump all the way to max cpu all the time).
My battery life nearly doubled, can last 15-20 hours easy depending on usage.
Click to expand...
Click to collapse
Thx mate really appreciate your info now the thing with i9500 is that it doesnt have triangle away supported yet hence I havent rooted or installed cwm.....I will be getting a new device tomrow....lets see what happens....eagerly waiting for triangle away .....
Sent from my GT-I9500 using Tapatalk 2
where do we find the temperature of the cpu and battery?
shomanadeh said:
where do we find the temperature of the cpu and battery?
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Click to collapse
theres an app called temp monitor if you go to the preferences of that app you will find an option that allows the processor temp to be displayed it statusbar all the time....now this app is not available on the play store and i cannot share it as i dont know if its a paid app but you can google for this app....cheers!!!!!!
Hi. mine is REV 0.6 and i bought it on June 12th. when i first got it it heated for no reason after 5 minutes of light use, but i never checked the degree. but after an ota update. the issue is gone and at most extreme conditions it reaches 70-73 degrees.
That's great let's see what happens after I get the replacement
Sent from my GT-I9500 using Tapatalk 2
Mine is Rev 0.6 & I bought it few days ago , I don't have any issue's with my device its working flawlessly.
Sent from my GT-I9500 using XDA Premium 4 mobile app
Wow that's nice am glad and really thankful that you guys are sharing this info that means it's not a batch thingy just a bad device that I got. ....... also can you guys share the battery backup you get with screen on time would be really helpful
Sent from my GT-I9500 using Tapatalk 2
Hw rev 0.6 here too. Some overheating (while gaming is hell) and no battery problems so far. I am curious about a new hw rev and its improvements
So say we all!! from my GT-I9500
Hmmm so am getting a replacement tomo by tue I will confirm if any improvements are seen if yes then u can approach samsung
Sent from my GT-I9500 using Tapatalk 2
hypergamer1231 said:
Thx mate really appreciate your info now the thing with i9500 is that it doesnt have triangle away supported yet hence I havent rooted or installed cwm.....I will be getting a new device tomrow....lets see what happens....eagerly waiting for triangle away .....
Sent from my GT-I9500 using Tapatalk 2
Click to expand...
Click to collapse
honestly, if your problem is only the heat, i am pretty sure a better cpu governor would solve your issue. lets face it, these phone will get hot, running close to 2ghz, quad cores with NO active cooling... even my desktop cpu gets around 45c with liquid cooling man...
i am sure the temperature is an issue using all existing governor (except if you use powersaver or conservative, but is slow), but the wheatley does a good job keeping the phone smooth despite staying at the lower end of the cpu speed as much as possible..
i got my S4, eventhough we have triangle away, i never planned to return it anyway, i'd just deal with the heat problem, in fact, at the beginning before i even discover the new kernel, i just manually reduce the max cpu speed to 1.6Ghz, and that solved the heat problem.
codenamezero said:
honestly, if your problem is only the heat, i am pretty sure a better cpu governor would solve your issue. lets face it, these phone will get hot, running close to 2ghz, quad cores with NO active cooling... even my desktop cpu gets around 45c with liquid cooling man...
Thanks a lot for taking the time to explain things.....now the issue i have is i can manage normal heat or for that matter heat which is above avg as well...the only scary part is my phone reaches 85 degrees most of the time.....it doesnt behave like an octa core.....its just like a a15 quad core and the heat is very very high......
i am sure the temperature is an issue using all existing governor (except if you use powersaver or conservative, but is slow), but the wheatley does a good job keeping the phone smooth despite staying at the lower end of the cpu speed as much as possible..
As I have a I9500 if I root the device my warranty will be gone as samsung people will reject the same because i rooted it.....also on the stock rom I am getting less than 3 hes of screen on time......hence requested for replacement....as I do not have the option of rooting the device till triangle away is available for I9500.....
i got my S4, eventhough we have triangle away, i never planned to return it anyway, i'd just deal with the heat problem, in fact, at the beginning before i even discover the new kernel, i just manually reduce the max cpu speed to 1.6Ghz, and that solved the heat problem.
Click to expand...
Click to collapse
So without rooting its not possible to limit the cpu and thats where am having a problem!!!!
Rev 0.6 here. Spectacular battery life 5-6 hours screen time. Overheat issue is "almost" gone for me. Atleast the heat is not enough to bother me while browsing and general use. Heavy gaming makes the phone quite hot though, out of the comfort zone of placing the top of the phone in your hand.
Purchased my S4 in June. Had horrible overheat issues, hickups,restarts, battery level suddenly jumping to low followed by a restart.
Every single one of this issue got solved by the firmware update. Latest MG5 (Indian). So please update to this one if you haven't already (Flash it) and report your temp, general battery life etc with us.
Sent from my GT-I9500.
Rev 0.6 here and 3 hours of screen time and 7-11 hours of battery
Sent from my GT-I9500 using Tapatalk 4
plasmastate said:
Rev 0.6 here. Spectacular battery life 5-6 hours screen time. Overheat issue is "almost" gone for me. Atleast the heat is not enough to bother me while browsing and general use. Heavy gaming makes the phone quite hot though, out of the comfort zone of placing the top of the phone in your hand.
Purchased my S4 in June. Had horrible overheat issues, hickups,restarts, battery level suddenly jumping to low followed by a restart.
Every single one of this issue got solved by the firmware update. Latest MG5 (Indian). So please update to this one if you haven't already (Flash it) and report your temp, general battery life etc with us.
Sent from my GT-I9500.
Click to expand...
Click to collapse
Yup Been MG5 since Day 1 and have done multiple factory resets still the temperature issue exists even the svc confirmed that the heating I have is a hardware issue,,,,,
*********If anyone from india recently bought the S4 they have a offer going on wherein 1 screen replacement will be done for free by samsung till the device is under warranty you can call samsung cust care and give them your purchase date they will confirm if the device is eligible for a free screen replacement!!!!! So for me no more screen guards needed,.....
I am running MG5 (Indian) firmware stock, no root, hw rev 0.6. I did some measurements today with cool tools
Ambient temp : 29°C
Idle processor temp: 37°C
Light task processor temp: 43-50°C
Web browsing heavy pages: 45-60°C
Playing sonic 4 ep1 : 59-67°C
Antutu processor temp: 70-92°C
Antutu score: 27.896
Pretty standard temp behaviour I guess. The overheating in my phone seems to be the inevitable one that comes with such a powerful (and unfinished) processor.
If someone gets a new hw rev we could compare at a given conditions (ambient temperature, apps running etc..). It might not be very representative, but it could be fun.
So say we all!! from my GT-I9500
Rev0.6
Bought last June 14..
No "overheat issue."
Heavy gaming makes phone hot but not to the point of overheating. Also after flashing a new rom it gets hot on first reboot (just wait for the rom to settle)
Every smartphone gets hot in a certain situation and thats pretty normal..
inolvidable said:
I am running MG5 (Indian) firmware stock, no root, hw rev 0.6. I did some measurements today with cool tools
Ambient temp : 29°C
Idle processor temp: 37°C
Light task processor temp: 43-50°C
Web browsing heavy pages: 45-60°C
Playing sonic 4 ep1 : 59-67°C
Antutu processor temp: 70-92°C
Antutu score: 27.896
Pretty standard temp behaviour I guess. The overheating in my phone seems to be the inevitable one that comes with such a powerful (and unfinished) processor.
If someone gets a new hw rev we could compare at a given conditions (ambient temperature, apps running etc..). It might not be very representative, but it could be fun.
So say we all!! from my GT-I9500
Click to expand...
Click to collapse
Well tomrow or day after am getting a replacement I will request them to give me a device manufactured in July let's see the results then
Sent from my GT-I9500 using Tapatalk 2
hypergamer1231 said:
Wow that's nice am glad and really thankful that you guys are sharing this info that means it's not a batch thingy just a bad device that I got. ....... also can you guys share the battery backup you get with screen on time would be really helpful
Sent from my GT-I9500 using Tapatalk 2
Click to expand...
Click to collapse
Best battery stats of my s4
Got 2x 7 houra screen time
But usually my usage is between 5.5 hours to 6.5hours screen time
I think you really got a bad device and not a batch defect. Good thing they will replace it for a new one.
I suggest update your device yo latest firmware or root and install custom rom and kernel.
Eventhough we have less available rom and kernel for now, the good thing is that they are all very nice and devs are great.

50% longer battery life

In January there was an article saying a software optimization has increased battery life on the s4 by 50 %. http://www.phonearena.com/news/Luci...promises-up-to-50-longer-battery-life_id51164
With the s5 out , which is reaching great battery life while having 'only' 2800 Mah it seems that Samsung has implemented this software and having better battery life than many good tablets
http://www.phonearena.com/news/Gala...lagship-has-the-endurance-of-a-tablet_id55077
When will it come for the s4? Probably just a matter of time, but do you guys Really think this is realistic? A 50% increase seems astronomic to me. In the text above it says the playing time of angry birds almost got doubled
Sent from my GT-I9505 using xda app-developers app
Well until not available cant really know.... but im more than skeptical about it
rogi19 said:
In January there was an article saying a software optimization has increased battery life on the s4 by 50 %. ....
When will it come for the s4? Probably just a matter of time, but do you guys Really think this is realistic? A 50% increase seems astronomic to me. In the text above it says the playing time of angry birds almost got doubled
Click to expand...
Click to collapse
Neighbor of the friend of my cousin's sisters uncle's stepfather's grandpa's stepdaughter is owner of the made by LG Nexus 1300. the android there is so efficient that she connects her fridge for night, as during the day the system charges battery very intensively.
Something for something, you can DECREASE speed of your phone, decrease the screen brightness etc. Or, you can digg eBay for nokia 5510, if you care about the battery life more than for phone efficacy.
spamtrash said:
Neighbor of the friend of my cousin's sisters uncle's stepfather's grandpa's stepdaughter is owner of the made by LG Nexus 1300. the android there is so efficient that she connects her fridge for night, as during the day the system charges battery very intensively.
Something for something, you can DECREASE speed of your phone, decrease the screen brightness etc. Or, you can digg eBay for nokia 5510, if you care about the battery life more than for phone efficacy.
Click to expand...
Click to collapse
I laugh so hard ????
Sent from my GT-I9505 using Tapatalk
spamtrash said:
Neighbor of the friend of my cousin's sisters uncle's stepfather's grandpa's stepdaughter is owner of the made by LG Nexus 1300. the android there is so efficient that she connects her fridge for night, as during the day the system charges battery very intensively.
Something for something, you can DECREASE speed of your phone, decrease the screen brightness etc. Or, you can digg eBay for nokia 5510, if you care about the battery life more than for phone efficacy.
Click to expand...
Click to collapse
If you had even made the effort to read the article , you wouldn't be writing that. People like you will never make progress in anything because everything that requires thinking out of the box seems impossible to achieve if you start like that. The PowerXtend algorithms change the way how software and hardware interact and optimizes it. The battery life is already tremendously improved on the s5 which is a fact, so you don't have to start with talking about your friends cousins sister and so on.. This by the way doesn't require some extreme CPU throttling , and I honestly don't know why anyone should have a 100% CPU-usage while surfing on the Internet for example. That's what optimization is.
Sent from my GT-I9505 using xda app-developers app
^^^^ LOLOLOL
rogi19 said:
The PowerXtend algorithms change the way how software and hardware interact and optimizes it. The battery life is already tremendously improved on the s5 which is a fact, so you don't have to start with talking about your friends cousins sister and so on.. This by the way doesn't require some extreme CPU throttling , and I honestly don't know why anyone should have a 100% CPU-usage while surfing on the Internet for example. That's what optimization is.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
I fully agree with you. For internet browsing, the power is not needed by CPU, but by the WiFi/3G/LTE. And, most of battery capacity goes there in such case.
But, 100% CPU is needed to keep alive in the background you email, tweeter, facebook, google and samsung sync plus any other app you may have.
For example, using the NavXtend.The outcome is that my position jumps around when I'm turning or suddenly stopping/accelerating. This is caused by the redirection of part of GPS requests to loop which predicts my movement.
But, you are absolutely right, I did not read the article. Instead, I went to the manufacturer portal, where he clearly states that any savings may be "up to" something.
And, exactly as with NavXtend, I will TRY any solution instead of sending excited posts that someone wrote something somewhere.

[Q] Overheating

Does anyone have overheating problems with their GS5?
Nah i dnt. Mayb u run to high frequencys or do it while charging?
Sent from my SM-G900F using XDA Premium 4 mobile app
When it charges it will overheat, that's standard protocol. How are you charging it?
I have tried both wireless charging and wired and I conclude that the wireless charging heats it much higher than wired. If you think it is getting too hot: download some battery app to check your temperatures and statistics.
Don't ****ing overcharge the phone either.
If all fails: just hold in under the tap a minute, should cool down pretty fast.
Nopes. Barely noticeable when gaming. For usual stuff it's all good and cool.
Sent from 5th Galaxy
Highest temperature I've gotten was 97F. When I'm using it hard it will sit around 88-91F.
walkermoon said:
Nopes. Barely noticeable when gaming. For usual stuff it's all good and cool.
Sent from 5th Galaxy
Click to expand...
Click to collapse
The only time mine got really hot was switching from dalvik to art.
Sent from my SM-G900W8
nviz22 said:
Does anyone have overheating problems with their GS5?
Click to expand...
Click to collapse
Sure. Is that all you wanted to know? That doesn't seem like a particularly useful datum, but it's your nickel.
If by chance you wanted more details or information, perhaps you could add more details yourself? Do you think that your S5 overheats? Why do you think that? What actual temperature does it reach? You really haven't provided nearly enough information for us to understand why you are asking.. or what you hope to learn.
It's normal for a smartphone to get "hot" under load. It's also a meaningless adjective without a context or quantitative measure. I don't believe that Qualcomm or Samsung have released thermal specs. But it isn't hard to estimate a thermal envelope.
My S5 idles around 30 - 35C. Light use sees 45C and perhaps ~65C under load. Which doesn't concern me at all. PC processors can see 90C+. I wouldn't worry about a phone that stayed under 75C. The processor will almost certainly auto throttle if it exceeds TDP in any event. TDP is rumoured to be ~ 5 W for the 800 series Snapdragons.
.

❄ The LG G4 TEMPERATURE THREAD ❄

We all know why LG choose 808 over 810, now let's see the results of their choice:
Here we'll talk about the G4 operating temperature.
Try to indicate your ambient temperature, model, display brightness, app(s) used, your cpu utilization (I use cool Tool for it), and of course temperature (for that purpose I use Cpu Temp wich basically reads bms sensor of Cpu-z in overlay, and Cpu-z itself) ;
Remember to distinguish battery temperature from cpu sensors temperature and if using cpuz remember that temperatures are very sensitive to time so measure it only while performing the task wanted.
Keep it as scientific as possible
*I forgot to mention that CpuZ has an erroneous C to F conversion. So keep it in °C to be accurate
There is an intersting heat comparison HERE on Android Central to begin with
Good idea. Do note that CPU-Z seems to have a bug where it converts temperatures incorrectly from C into F, in the Thermal tab. From what I've seen, CPU-Z should be set to display in C, not F, if you want accurate readings.
To see the issue, check the temps, including in the Battery tab, then in the Thermal tab. For me, in C, the Thermal tab numbers seem reasonable, and the "battery" line in Thermal is close to the temp shown in the Battery tab. But change the units to F, and the Thermal tab suddenly reads the battery, and everything else, too-high by about 30F. The temperatures are not converting properly from C to F, the displayed C and F values are not equivalent. This conversion issue appears using CPU-Z on my last phone, as well.
So if posting CPU-Z temps from the Thermal tab, I'd suggest setting it to C, not F.
Thanks, I forgot to mention it, added
What's the point of this thread? This isn't a PC, it's not like we can do anything about the temps.
kyle1867 said:
What's the point of this thread? This isn't a PC, it's not like we can do anything about the temps.
Click to expand...
Click to collapse
That is where you are wrong. It's called we can hard mod the phone for better temps.
Total newbie question, is the temperature you're feeling on the hand the one from the CPU, or the one from the battery, which is closer to the hand?
DeadPotato said:
Total newbie question, is the temperature you're feeling on the hand the one from the CPU, or the one from the battery, which is closer to the hand?
Click to expand...
Click to collapse
It should be the battery because I notice my phone getting warm pretty often and I have a widget for battery temperature which tends to go up to around 38 °C often. I didn't check CPU temperatures but I don't think the CPU is heating up too much.
82 F - sitting on the desk doing nothing but looking pretty. VZW, brightness at 0% and Auto.
All these freaking temperature problems will be resolved in a few months when the freezing winter arrive xdddddddddddddf
Sent from my LG G4 H815 USA 4G LTE TMO
MrSteelX said:
That is where you are wrong. It's called we can hard mod the phone for better temps.
Click to expand...
Click to collapse
Lol, no, you can't.
At least LG choosing 808 instead of 810 due to hear issue was the right choice.
https://youtu.be/HltGLYZLySs
Take a look at a link above, SD810 might have upper hands during cooled state but that changes quickly throttling down below SD808 specs. SD810 potentials are pretty much obsolete and probably will never run on full more than 5 minutes.
SD808 is holding its speed even running hot. So I wouldn't really worry about hear part for this phone. But I'm with some users here. Few software updates will iron out some heating problems.
Sent from my LG-H811 using XDA Free mobile app
I've noticed that phone is getting hot when charging even if the phone is in standby. I'm getting around 40-44c.
t68kv said:
I've noticed that phone is getting hot when charging even if the phone is in standby. I'm getting around 40-44c.
Click to expand...
Click to collapse
That's low for charging honestly if your referring to cpu temp. Most phone cpu temps stay around 25-35 idling and mid 40s when just doing simple scrolling and small tasks. 60-70c is fairly normal on heavier tasks and games. Kernels usually don't even start throttling until the cpu gets in the70-80c (generally most start shutting down cores at 80).
That being said, my G4 is one of the coolest running phones that I've messed around with. CPU-Z usually says that I'm in the low 40s even on some heavier tasks. I know that my Note 4 gets much warmer, much faster. Heavy web browsing for example will have my N4 in the upper 50s low 60s. The G4 stays pretty stable in the upper 40s low 50s. I'm happy they chose the processor that they did honestly. Stays pretty cool compared to the competition.
you can even mine cryptocurrency on this beast for hours on a normal (here normal) 27-30°C ambient temperature, and the battery gets to 44°C and the CPU gets into the 50s.
This phone has one of the BEST thermal management I've ever seen. I was a nexus 4 user, so you can see how much i was struggling.
Sent from my LG-H815 using Tapatalk
Thank you all
Please add which sensor are you referring to and with wich app you use to read sensors
sharpehenry said:
At least LG choosing 808 instead of 810 due to hear issue was the right choice.
https://youtu.be/HltGLYZLySs
Take a look at a link above, SD810 might have upper hands during cooled state but that changes quickly throttling down below SD808 specs. SD810 potentials are pretty much obsolete and probably will never run on full more than 5 minutes.
SD808 is holding its speed even running hot. So I wouldn't really worry about hear part for this phone. But I'm with some users here. Few software updates will iron out some heating problems.
Sent from my LG-H811 using XDA Free mobile app
Click to expand...
Click to collapse
I don't pretend to be rude, but that information is outdated and inaccurate. I don't know how the other manufacturers are doing with the 810 to be honest, the Z3+ is sort of new and I've been checking the threads but there's too early to judge so far, it happens that I do have an HTC One M9 up to date, stock and unrooted and I've noticed several improvements through updates. Considering my daily usage I didn't feel this was matching with what I experience in real life, so I decided to redo the test on the video. I ran AnTuTu benchmark 64 bits version 4 times in a row, and left an average of a minute (sometimes less, once was a bit more cause I took the wrong screenshot) between tests. The attachments were uploaded in chronological order, you can also guide for the hour displayed from the device.
Now besides the video only runs 4 times, I did notice it was holding every couple of tests and then decreases, so I decided to run one more for the sake of pure testing and check throttling behavior, and surprisingly the fifth run gave me an increase on the score instead of lowering it further.
I didn't find a dedicated benchmark thread on the G4 forum, unless LG had improved a lot the 808, and based on the several benchmark results you'll find across the internet, including the ones in that video, looks like even throttling snapdragon 810 holds as an 808 in worst case scenario.
About heating problems, if I'm providing a success case scenario with a more troublesome chip like the 810 is, I'm completely sure the 808 will be fixed in time
phone gets crazy hot when running Periscope
it even shows that hot temp message / stops charging
try broadcasting for 5 mins
Intersting comparison between M9, S6, G4, Droid Turbo heat dissipation HERE
Periscope heats up the phone like crazy!
I too have had issues with the device getting very hot on the top half of the screen. Tried a couple of factory resets but it didn't help. Even reset one more time and kept it stock after a few hours same problem. Took it to the AT&T store and of course it was behaving fine. Luckily the rep knew me and accepted I knew what I was talking about. Swapping mine for one first thing this morning when their new shipment comes in. Will update if issue persists or not.
Wish I would have done it 3 days ago. Might have been snagged another battery and leather case lol.
Sent from my LG-V495 using XDA Free mobile app

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