high temperature - Xperia Z2 General

Hi, I have been using the phone for the past 2 days and realised that it heats up pretty quickly. It was particularly hot at the top part of the back of the phone, the area where the NFC logo is located. I did several "tests" to see how fast it heats up, and I made sure that the phone was cooled down before each try.
Firstly, I used the phone for browsing the internet for about 15mins and realised that the temperature(battery) has risen to 43 degrees celsius. Next, I tried using its camera and took several shots and after about 5 minutes of use, the temperature has also risen to 44.2 degrees and the a message was prompted stating something like "the temperature is too high! camera needs to turn off." I then tested the video recording in 4K resolution. The recording lasted for only about 3mins 40secs before the message was prompted, and the recording was not saved. The temperature rose to 44.5 degree celsius.
I understand that the automatic shut off of the camera was to prevent any hardware damage from the high temperature. However 15 mins of browsing and less than 5 minutes of 4k recording does not appear satisfactory from a user's point of view, especially after the device being touted as the best Sony has built. I hope that a software update can help mitigate this issue, as it will be a huge hindrance to the day to day usage if the issue remains. Does anyone else have the same issue?

Just own it only 1 day and I have no heat problem. A bit hotter when using under direct sunlight with 3G in about 1-2 hours. Totally no heat problem . Mine always under 40°.
Sent from Z2

Much cooler than my Z too. Even with constant LTE data use
Sent from my D6503 using XDA Premium 4 mobile app

Could it be due to some background processes like media server? First time I booted the phone, I took only 2 pictures when the phone complained it's too hot, and indeed it felt very hot to the touch. Subsequently I don't have this issue anymore.

kurtisnet said:
Much cooler than my Z too. Even with constant LTE data use
Sent from my D6503 using XDA Premium 4 mobile app
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Click to collapse
Good to hear... i switching from Z to Z2...
Hope this is a one-man issue!
I going to **** myself in the ass if Z2 has the same heating & back panel unglue **** issues...

I tried running the "tests" in safe mode with the same results, which eliminates the probability of 3rd party apps affecting it. I have also tested a few display sets in my local sony centres, same issue. did anyone actually tried 4k recording?...or using manual mode for the camera over a period of 5-10 mins?....

tridious said:
I tried running the "tests" in safe mode with the same results, which eliminates the probability of 3rd party apps affecting it. I have also tested a few display sets in my local sony centres, same issue. did anyone actually tried 4k recording?...or using manual mode for the camera over a period of 5-10 mins?....
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Click to collapse
What's the ambient temperature when you run the tests? Where do you live? Could you record a video to demonstrate what you're seeing? It's strange you're the only one to have mentioned it so far.

plonkersaurus said:
What's the ambient temperature when you run the tests? Where do you live? Could you record a video to demonstrate what you're seeing? It's strange you're the only one to have mentioned it so far.
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i do not have a spare phone/camera to record a video, but this is the closest i cant get to what im experiencing.
youtube /watch?v=BVDygET6KHQ (sorry i cant link it here, not enough post counts)
apparently z1 had the same problem.

tridious said:
Hi, I have been using the phone for the past 2 days and realised that it heats up pretty quickly. It was particularly hot at the top part of the back of the phone, the area where the NFC logo is located. I did several "tests" to see how fast it heats up, and I made sure that the phone was cooled down before each try.
Firstly, I used the phone for browsing the internet for about 15mins and realised that the temperature(battery) has risen to 43 degrees celsius. Next, I tried using its camera and took several shots and after about 5 minutes of use, the temperature has also risen to 44.2 degrees and the a message was prompted stating something like "the temperature is too high! camera needs to turn off." I then tested the video recording in 4K resolution. The recording lasted for only about 3mins 40secs before the message was prompted, and the recording was not saved. The temperature rose to 44.5 degree celsius.
I understand that the automatic shut off of the camera was to prevent any hardware damage from the high temperature. However 15 mins of browsing and less than 5 minutes of 4k recording does not appear satisfactory from a user's point of view, especially after the device being touted as the best Sony has built. I hope that a software update can help mitigate this issue, as it will be a huge hindrance to the day to day usage if the issue remains. Does anyone else have the same issue?
Click to expand...
Click to collapse
Well i got to tell you that all snapdragon 800 SOC heat up doesent matter the phone producer,i have an lg g2 and it heats up relativley quick its not a defect its a must because its a 2.3 ghz clock not a 1.0 so every time u do demanding tasks the proc will heat up you cant do anyting about it,you can try to change it maybe you got a faulty one but keep in mind if you get a new one it will heat up non the less depending on task.
And another thing when battery temp shows 40`C the CPU temp will be like 70`C+<<

Check this out! 38 degrees Celsius! Is that normal for the Z2? The m8 is only in the 28-30 dergees Celsius range.

And here are some m8 different user sceen shots...as you can see the temperature is pretty stable, between 28-31 degrees celsius, a bit lower than the Z2's 38 degrees. I wonder why this difference in temperature between the two?

debrandman said:
And here are some different user m8 sceen shots...as you can see the temperature is pretty, stable between 28-31 degrees celsius, a bit lower than the Z2's. I wonder why this difference in temperature betwwen the two?
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Click to collapse
Do you know the ambient temperatues of where the two phones are being used? Taiwan and Singapore where the Z2 is released are hot countries. The M8 has been released world wide.
If the M8 is from the UK where the temperature is less than 20C and the Z2 is in Singapore where it is ~35C, its going to be much easier for the Z2 to heat up.
I'm sure the Aluminium shell of the M8 also helps with heat.

plonkersaurus said:
Do you know the ambient temperatues of where the two phones are being used? Taiwan and Singapore where the Z2 is released are hot countries. The M8 has been released world wide.
If the M8 is from the UK where the temperature is less than 20C and the Z2 is in Singapore where it is ~35C, its going to be much easier for the Z2 to heat up.
I'm sure the Aluminium shell of the M8 also helps with heat.
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Click to collapse
Or maybe its because of the waterproofing on the z2 wich is sealed up and has no open gaps through heat can emanate and cool down.

debrandman said:
Or maybe its because of the waterproofing on the z2 wich is sealed up and has no open gaps through heat can emanate and cool down.
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Click to collapse
Yes it could be, but that is speculation, although I'm sure the M8 doesn't have air circulation inside either.
I think some of the difference could be down to environmental factors.

Ambient temperature is the key thing here. Battery temp means nothing without an ambient temp. My one X, which is my second, they both get around 50 degrees when under load. It's normal. 40 degrees is absolutely fine, it slightly warmer than body temperature. Lol

No one cares about Battery temperature!
Battery temperature won't go over 45°C Anyway!
Check out the SoC temperature! that can reach up to 75°C
Does Xposed work for Z2 ? There is a cool module called "CPU( or SoC) Temperature in Status bar" It does exactly that! Got that on my Xperia Z and it shows me always how hot the phone really is.

Oh boy not the same crap from Z1, the overheating problem & camera shutting itself off because of that, was the main reason I skipped on Z1, Now it's the same with Z2? bummer
anyway this is what I read today from sony:
"We are aware of some users encountering issues when shooting 4K video for extended periods. Shooting movies in high quality 4K resolution can make significant demands on your phone's processor and battery life, as well as phone memory. Therefore for the best experience, we recommend you install a high capacity SD card (Xperia Z2 can take a card up to 128GB) and shoot 4K video in short bursts of no longer than a few minutes at a time." -Sony Mobile Singapore

Wow didn't notice this. There is indeed a High Temperature Warning after recording 4K for about 3 minutes and the camera shuts off. Thankfully, 4K isn't that popular yet and there are no issues recording at 1080p.I hope Sony finds a solution soon because that 4K feature is really advertised.

soulreaver99 said:
Wow didn't notice this. There is indeed a High Temperature Warning after recording 4K for about 3 minutes and the camera shuts off. Thankfully, 4K isn't that popular yet and there are no issues recording at 1080p.I hope Sony finds a solution soon because that 4K feature is really advertised.
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Click to collapse
Agreed. You would think their testers would have noticed that prior to launch.
Sent from my D6503 using XDA Premium 4 mobile app

Check this out! 40 degrees Celsius! Is that normal for the Z2?

Related

A possible improvement for the overheating camera issue

It may help improve the situation, I noticed marked improvement in the length of videos that I can record if I enabled Extended Usage as folllows:
Power Management -> Stamina Mode -> [Check] Extended Usage
Mention how long you can record without this setting and with it.
Also mention ambient temperature when you do the recording in both cases.
One Twelve said:
Mention how long you can record without this setting and with it.
Also mention ambient temperature when you do the recording in both cases.
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Click to collapse
Ambient temp: 29 C
BEFORE
Recording Video : less than 20 seconds...
AFTER
Over 2 minutes so far, no shutdowns yet...
Massive improvement...
I actually was recording my baby doing tricks, but initially was not able to do so... cause by the time I click on the red button to record, it already has over heated....
Presumably you are talking about 4k.
20 seconds at 29 degrees is rather short, i managed 2:30 in a non air conditioned shop before it put up that message, there was no active wifi or cell connection when doing this test as there was no sim card in it.
will try your setting later and report back how much difference it makes. Some body else also mentioned that this setting worked as well.
I think the camera overheating issue is not really related to the camera sensor, but to the processor overheating.
I am stating this based my experience with video recording using DSLRs,
One Twelve said:
Presumably you are talking about 4k.
20 seconds at 29 degrees is rather short, i managed 2:30 in a non air conditioned shop before it put up that message, there was no active wifi or cell connection when doing this test as there was no sim card in it.
will try your setting later and report back how much difference it makes. Some body else also mentioned that this setting worked as well.
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Click to collapse
Yes it is very short. I was so annoyed that I flashed another firmware only to find out that it had the same problems. I was not even taking 4k videos! Basically when you factory reset the phone, whatever settings that is there was the one I used.
However, last week, when I got my phone I could remember taking videos that were relatively long (3 minutes or so)... Oh well now I have setup the phone again... I am now on that .438 singtel firmwware.
Your phone is faulty
Sent from my HTC One using XDA Free mobile app
Well it's working fine now...
Sent from my Telpad QS using Tapatalk
icedeocampo said:
Well it's working fine now...
Sent from my Telpad QS using Tapatalk
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It's very hard to do any sort of proper testing and come to any conclusions.
I can usually take loads of photos and (1080p video) in close succession, but just last week, when it was quite sunny - I managed just a few before the error and being told the camera would close to cool down. Started the camera again, it shut down almost immediately. And after that, I got an error that stopped the camera loading at all.
Now that's not normal. It really wasn't THAT hot either, but the CPU was running at 60 degrees! Goodness knows why, but ultimately I was unable to take photos until I'd turned the phone off completely to let it cool (I was out, so didn't have any cold water to dip it in).
After leaving it a while, it was okay for as long as I needed to take some more pictures.
It's ****** annoying as we're about to have one of the hottest weeks of the year so far in the UK, and here it's quite humid and sticky. Thus, I fully expect that I'm going to have loads of problems. And Sony will give us the software fix they've now acknowledged is coming just in time for winter.
I agree it's funding annoying
Sent from my Telpad QS using Tapatalk

❄ 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.
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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?
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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.
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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
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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

Owner's opinion on Xperia Z5 heat emission

As I am still undecided wether to buy the Z5 or look for another option, I'd like to get your personal opinions concerning the heat emission of Sonys newest device.
I have my Xperia Z for 2.5 years now and in my opinion, that phone gets pretty warm too (I play a lot of Hearthstone on my phone) but it isn't getting too hot to handle. I'd hate to look for another option since my Xperia Z was updated from 4.1.2 to 5.1.1 and my hope is, Sony keeps on updating all of its Xperia phones for at least 2 years.
To cut things short: please state which phone you used beforehand and give a number between 1 to 10 how warm you personally think the Z5 gets, 1 being cool and 10 being unbearably hot.
Ive had the Z1 and Z2
Z1 heavy use 3
Z2 heavy use 5
Z5 Heavy use 8
Nexus 5 - 3
iPhone 6 - 2
Xperia Z5 - 8
On my Xperia Z5 i downloaded the game Heroes Charge and when i started the game i got promted to do an update of 200mb. During the time the game downloaded the update on 200mb the top part of the phone got pretty warm. The whole download process took about 1 minute and it was quite worrying that it got so hot that quickly just by dowloading an update for about 45 seconds..
I instantly put the phone back in the box and will return it today. I don't dare to buy this phone for so much money just to experience difficulties in the future due to heat problems.
Mine arrived today - still deciding whether to keep it or not
Was taking a few pics, nothing too strenuous and it got pretty hot.
I dont recall the Z3 having the same issue.
The Z3 have a different CPU, that's why it doesn't get as hot as the Z5.
I'm really worried and havn't totally decided about sending the phone back. I really like the phone but it just gets so damn hot quickly. Is this something to worry about in the long run? I guess i can get used to the phone being warm, but not if it can cause any issues in the long run. I mean, i don't want a broken or really slow phone in six months..
Got to admit, the Z5 does heat up a lot quicker than any device I've used in the past
Z- 5
Z3- 4
Z5- 6
The Z5 does heat up quite fast but it doesn't get "hot" it gets warm and its fine to touch. On my Z3 the battery temp i usually around 30 degrees celsius, whereas my Z5 would average around 35 ~40 degrees celsius. again it gets warm but not "hot." Whenever you push the CPU or GPU the back will get hot, so downloading a bunch of apps etc... will push up the heat and its normal for any device.
LitoNi said:
Got to admit, the Z5 does heat up a lot quicker than any device I've used in the past
Z- 5
Z3- 4
Z5- 6
The Z5 does heat up quite fast but it doesn't get "hot" it gets warm and its fine to touch. On my Z3 the battery temp i usually around 30 degrees celsius, whereas my Z5 would average around 35 ~40 degrees celsius. again it gets warm but not "hot." Whenever you push the CPU or GPU the back will get hot, so downloading a bunch of apps etc... will push up the heat and its normal for any device.
Click to expand...
Click to collapse
So the heat is nothing to worry about? No risk of reduced performance in the long runt etc?
HenrikSolna said:
So the heat is nothing to worry about? No risk of reduced performance in the long runt etc?
Click to expand...
Click to collapse
Nothing to worry about, not unless you don't like the device to be constantly warm. It's much cooler here ok Vancouver right now so i can't say it would be around the same temperature for you.
I'm in Sweden, so it's pretty cold right now, around 5-10 C as highest during the day (40-50 F) so a warm phone is no problem, i would welcome it as a heat source when i'm outside
But i was just worried that the performance of the phone would be affected by the "heat issue", i really don't want to spend a lot of money on a phone where i might get issues with later on.
Bad things with overheat I have used Z5 for 5 days now. When the phone is charging it heats up badly and if you browse heavier web pages it starts to lag as does other apps and even launcher. If I run Antutu in these conditions it barely reaches 41000 score. I should mention than without charger pluged in (being colder or in other words regular conditions) it only reaches 50000 score, although, most reviews mentioned 60000 score. So this is my experience and I don't like it
Sent from my E6653 using Tapatalk
---------- Post added at 11:37 PM ---------- Previous post was at 11:28 PM ----------
BTW it heats up less because of GPU and more because of CPU usage. You can run 3D graphics for a long time and its not hot. But if you install anything or multitask (i.e. play music, run updates and browse) it heats up very quickly. And I repeat that I have only noticed it while being charged.
Sent from my E6653 using Tapatalk
Guys, never do CPU intense tasks while charging, that's def going to heat up the device and consequently reducing performance!
As long as the apps don't close because of heat, it's all fine and the phone getting warm shows that the heat drain pipes design is working. The Z3+ closed apps due to heat = unusable. The phone getting a bit warm to the touch is absolutely nothing to worry about. Remember, there's an octa core processor with 3 GB of RAM in that slim device
Based on that input, do you guys see FCs of apps due to heat?
i can tell Z5 is far better than my Z4 (Z3+) in terms of heat. consider heat issue is nvr exists.
Ok, so I have done some more thorough testing with Antutu and temperatures. I have tested the Z5 in room conditions (22 celcius). The device was cold (from standby) and I ran Antutu. Score 50000.
Then I ran Antutu again and again and again. With every test the device heated up and the Antutu score... droped down. It dropped down to 42302 until the Antutu app was "unable to verify" the result (kind of crashed).
Then I put it in a freezer (in a sealed bag of course). The Antutu score was 66609.
A you can see the heating up can redue the Antutu score by as much as 35%.
I believe this answers somebody's question whether the Z5's heatup reduces performance...
povilkami said:
Ok, so I have done some more thorough testing with Antutu and temperatures. I have tested the Z5 in room conditions (22 celcius). The device was cold (from standby) and I ran Antutu. Score 50000.
Then I ran Antutu again and again and again. With every test the device heated up and the Antutu score... droped down. It dropped down to 42302 until the Antutu app was "unable to verify" the result (kind of crashed).
Then I put it in a freezer (in a sealed bag of course). The Antutu score was 66609.
A you can see the heating up can redue the Antutu score by as much as 35%.
I believe this answers somebody's question whether the Z5's heatup reduces performance...
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Click to collapse
You can't really say it's 35% because the high number is when you had it in the freezer. Any phone in the freezer is by definition not a normal use case. Your findings of a 15% decrease is within normal variation for a phone being used constantly, especially when using a benchmark app constantly.
While it shows it definitely heats up, it's not as big of a difference as you make it sound IMO.
Sent from my Nexus 6 using Tapatalk
phobator said:
As I am still undecided wether to buy the Z5 or look for another option, I'd like to get your personal opinions concerning the heat emission of Sonys newest device.
I have my Xperia Z for 2.5 years now and in my opinion, that phone gets pretty warm too (I play a lot of Hearthstone on my phone) but it isn't getting too hot to handle. I'd hate to look for another option since my Xperia Z was updated from 4.1.2 to 5.1.1 and my hope is, Sony keeps on updating all of its Xperia phones for at least 2 years.
To cut things short: please state which phone you used beforehand and give a number between 1 to 10 how warm you personally think the Z5 gets, 1 being cool and 10 being unbearably hot.
Click to expand...
Click to collapse
Scientifically speaking this is a poor way to investigate the potential heat issue. Your primary concern is the temp and performance of the CPU/gpu, which does NOT consistently correlate directly with the temperature of the phone. In the case of the Z5, you have an actual heatsink combined with materials that are very good at transferring heat. The fact that the phone warms up quickly is actually a testament as to how well it dissipates heat from the CPU.
As for the antutu scores being worse, these scores are only useful so long as they represent real world performance. At the end of the day, you can still record 4k video for 30 minutes. I personally have not seen any slowdown related to heat. Downloading and installing programs does definitely heat up the phone, but the slowdown is because of the installation process and not the heat (in my experience) as this improves as soon as the install finishes.
I have done a lot of stuff with this phone and had no problems with performance, unlike my brothers g4 which can't navigate for long periods due to overheating. Yes the antutu scores show there is throttling, but I'm pretty sure every phone with this chip is designed to throttle to some extent. In my experience this throttling is irrelevant.
Every single core octa core phone throttles. This is my findings from 5 Antutu runs from identical cold starts (25C CPU temp) with all other apps closed on my three phones
Z5 : 62K - 54K (I won't agree with the 50K score he got on Z5 from the cold start, definitely lots of things were running in the background)
S6: 67K - 52K
Z3+: 57K - 46K
In terms of consistency, Z5 tops all of them. Considering the drama we've see earlier on other 810 based phones, this is a miracle Sony pulled on Z5. It could be the heat pipe or sw enhancements or both. No matter what - Z5 puts an end to that 810 drama.
Thank you guys for your answers so far! I took from your answers, the Z5 gets hotter than the original Z and some of you think that that's no problem and some think it's too hot ...
Ambivalence in regard to it's heat emission seems to be characteristic for this phone ... a lot of reviewers says it's ok while at least the same amount of reviewers says it's too much heat coming from the Z5 ... I'm still undecided ...
I've had the Z5 for a couple of days and even during the initial setup when it was updating and installing apps I was still able to use the phone normally and it didn't get too warm. I'm coming form the Z3 and I'd say they heat up pretty much the same - about 6-7 out of 10
Phone gets warm it's true, I remember my z1c going warm also pretty much the same 5-6 in the warm rank, but I tried a Xperia M4 last week and holy crap, that thing was super hot, I had to hold it from the bottom because the heat was unbearable, overall I am very happy with my new Z5, it's a great device
Got my one two days ago and must say gets pretty heated when I listen to music and play candy crush. Spoken to o2 and said that they would replace seeing as am in still my fourteen days cooling period. Am wondering that if I give it time will it change and settle?

z5 compact general operating cpu temperature

hello all.. I just wanted to understand how z5 compact cpu Temps are under normal usage (basic phone usage messaging, youtube video, basic camera usage, browsing and reading articles).. for example my oneplus one running on snapdragon 801 typically hovers between 33-38 for majority of the tasks.. I understand no phone is the same.. different people have different experiences...Through this thread I would like draw some patterns and conclusions.. thanks!
Just installed a cpu temperature monitoring app to check.(cpu temperature by mooncakes from playstore)
From what I can see (if it shows the correct sensor) it hovers between 28 - 33.
Using a "regular" Z5, though.
While browsing/messaging/youtube for prolonged periods I am usually at around 35-40c.
Gaming with 2d usually stays at around 40c and 3d is at around 50c.
Installing and updating apps usually generates most heat with temps of around 50c+ but fortunately its not something that happens often.
DaNiC700 said:
While browsing/messaging/youtube for prolonged periods I am usually at around 35-40c.
Gaming with 2d usually stays at around 40c and 3d is at around 50c.
Installing and updating apps usually generates most heat with temps of around 50c+ but fortunately its not something that happens often.
Click to expand...
Click to collapse
Maybe u could add which app you use, I edited my post too.
Also, I think while shooting 4k video and using the AR effects for prolonged time the temp wil go above 50°c (I'll have to test) but the sd810 probably handles more.
At my old Z running a snapdragon s4 pro shutdown temperatures are around 78°c or so.
thanks guyz.. again.. just to clarify.. we can exclude the extreme cases.. like shooting 4k and prolonged gaming.. these are known to stress the cpu.. I am curious to understand how bad it is during normal usage.. hopefully this will allow others to make informed decisions.. I have mine coming tomorrow!
yubeie said:
thanks guyz.. again.. just to clarify.. we can exclude the extreme cases.. like shooting 4k and prolonged gaming.. these are known to stress the cpu.. I am curious to understand how bad it is during normal usage.. hopefully this will allow others to make informed decisions.. I have mine coming tomorrow!
Click to expand...
Click to collapse
Well, under normal conditions nothing to worry about. (in my opinion not even under heavy load, Z5 is supplied with a dual heatpipe - but that you'll probably already noticed lol)
langeveld024 said:
Well, under normal conditions nothing to worry about. (in my opinion not even under heavy load, Z5 is supplied with a dual heatpipe - but that you'll probably already noticed lol)
Click to expand...
Click to collapse
z5c doesn't have the heat pipe based cooling.. hence the worry
yubeie said:
z5c doesn't have the heat pipe based cooling.. hence the worry
Click to expand...
Click to collapse
? It obviously has.
yubeie said:
z5c doesn't have the heat pipe based cooling.. hence the worry
Click to expand...
Click to collapse
Oh I thought it had.
Then I understand
only the z5 and z5p have the heat pipes.. z5c doesn't unfortunately.
langeveld024 said:
Maybe u could add which app you use, I edited my post too.
Also, I think while shooting 4k video and using the AR effects for prolonged time the temp wil go above 50°c (I'll have to test) but the sd810 probably handles more.
At my old Z running a snapdragon s4 pro shutdown temperatures are around 78°c or so.
Click to expand...
Click to collapse
I'm using the Cputemp app which has a cool option that adds the cpu temperature to the header of the phone (where the time and battery life reside) so the temperature is constantly under check.
I'll add also that battery temperature is usually at around 30-35c and if you're doing something heavy for a long while it will rise to 40-43c
yubeie said:
only the z5 and z5p have the heat pipes.. z5c doesn't unfortunately.
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Click to collapse
What **** are you talking? It has, for gods sake.
Premium has dual heat pipes as rest has only single i guess.
My temps are between +17 - +38 last 5 days (no gaming)
Idle temp at night usually +20 or little bit under.
Web browsing get temp usually up to +35
mele80 said:
Premium has dual heat pipes as rest has only single i guess.
My temps are between +17 - +38 last 5 days (no gaming)
Idle temp at night usually +20 or little bit under.
Web browsing get temp usually up to +35
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Click to collapse
No, all 3 models have dual-heatpipes. Seriously, what the **** is up with you guys? The last model with 1 heatpipe was Z4.
Tommy-Geenexus said:
No, all 3 models have dual-heatpipes. Seriously, what the **** is up with you guys? The last model with 1 heatpipe was Z4.
Click to expand...
Click to collapse
Don't be like that
guyz.. easy.. let's keep the discussion civil... its okay... if a person is right or wrong.. there is absolutely no need for cursing.. I went through https://www.ifixit.com/Teardown/Sony+Xperia+Z5C+Teardown/53206 and there is no sign of it.. you can look at z5 or z5p on the other hand and you'll find it.
check out step 12 through 14.. https://www.ifixit.com/Teardown/Sony+Xperia+Z5+Teardown/52300.. this one uses it.
I already posted it in a an thread, but here it seems more relevant.
I made a small video showing my Xperia z5 compact overheating.
Just with browsing the CPU can reach temperatures of 50 - 60° in 7 minutes.
This happens while browzing at other sites too. CPU throttles bit by bit and it gets really warm.
This makes the back of the phone very very uncomfortable to hold and i can't imaging how hot it will get in the summer or under the sun.
Can you please give me a feedback on that because I am thinking of returning it.
There is something wrong with the cpu temp app that you are using..I just tested two apps simultaneously on my oneplus one...The app you used reported 46C while the "cooler master" app reported 33.3c attached is the screenshot!
There is no way my phone was at 46 because..the phone pretty cool..So I suspect the app is not reporting it right...not sure where it's getting the info from.
https://www.dropbox.com/s/3iq8arqy5fcupex/Screenshot_2015-12-21-14-25-10.png?dl=0
Okay.....I performed extensive testing in the past two days regarding the temps to understand the behavior....Here are the details..
I used my old oneplusone and z5 compact to compare 1. perceived heat (based on touching the device) and 2. actual temp readings from the app devcheck pro.
Regarding temp readings, I monitored both CPU as well as battery temps. I generally felt, the "perceived heat" comes into play only once battery heats up as this lines up along the back of the phone.
Test performed: Used flipboard and news republic apps for 5-6minutes. Then opened chrome dev browser app and loaded "cricinfo.com" website. This web-page is flash intensive and has tons of content. I kept repeatedly navigating through the webpages and accessing links. The idea was to perform intensive web-browsing.
Note that both phones had TPU cases on them.
Here are my findings:
-Both the phone's CPUs start off at 37-40c and gradually hit 55-65c. Interestingly, I noticed that oneplus one at times hit almost 73-75c!! whereas z5c never hit this limit (perhaps due to thermal throttling???).
-The battery temps steadily rose from 27c to 38-40c.
Attached is a screenshot for your reference.
-On both phones, the temps rose almost around the same time (about 7-10mins into the test). I felt at some-point z5c was being throttled to maintain temp thresholds. However, I did not notice any "visible" performance drops.
The key thing to note: The back of the oneplus one was slightly warm. Whereas z5c was pretty warm (although not uncomfortable). I think this is exactly where the user gets worried, thinking the phone is overheating. The problem is the glass back as opposed to the padded material of the oneplus one. The glass surface of z5c almost immediately starts conducting heat and quickly heats up.
After letting the phones cool, almost within 10minutes, both the phone temps dropped pretty quickly.

Heating up | Exynos S20

Hi all,
I got my S20 a couple days back and never since that day have I not seen my phone heat up every now and then.
Heavy multi-tasking ; this thing starts to warm up which is normal but what is not normal is how excessively hot this device get when using the camera for a little over 5 minutes , whether it is recording videos or clicking pictures, this device becomes unreasonably hot.
Playing a little bit of game on highest settings for a couple of minutes shouldn't be causing as much heat as the S20 ends up generating.
I am skeptical for the logetivity of this device if this heating up keeps up on such trivial tasks.
Not sure, but has anyone before ever experience this kind of problem and has seen the OEM actually fix it with mere software updates?:fingers-crossed:
Let's discuss the status of each of our devices and figure if only a bunch of us have the devices which are behaving like this or is it happening with all of our phones?
SD S20 owners can also pitch in for comparison.:good:
Thank you.:laugh:
Yes I'm also experiencing same thing. Even watching a 3-4 minute video on YouTube makes the phone feel warm. Camera heats up the phone very quickly.
Hope Samsung solves the issue.
Same problem on camera it heats up rilly fast,not seeing that in you tube though..
Same here...or even worse. 5 mins on facebook/twitter and then the device becomes obviously warm.
Same thing happens when doing wireless charging. It still gets warm quite quickly even when fast wireless charging is disabled.
Exynos S20 exynos 990
Same problem. So I went to Samsung Service center and told them the problem regarding this overheating issue. What they are telling me is that 41.8 degrees(what they have read from my device using a thermal scanner) is normal (I don't think so as 42 degrees for trivial task is absurd) also they inform me that they will reinstall the operating system once again and check whether the problem still persists, if yes replacement will be done by giving us one certificate that we can take it to the shop where we have bought the phone and get a new s20 (what a lengthy process).
S20 Exynos 990
Click to expand...
Click to collapse
New Software updates
Since I wrote this post, there have been two updates pushed by samsung.
None of them made any dent to the slew of problems that this phone has been having.
I tested antutu score, I know they are not the real test for day to day usage but these scores have actually dropped since latest update.
The camera albeit is better at focusing , I can testify to that as I made two videos before and after the updates and I can see some difference but the heating is still going on like crazy.
Now I think, Samsung should have added a heat vapor chamber in the phone to manage this hot garbage.
Very disappointed to have payed so much and not even get the performance as good as the last year's SD devices.
Facing the same issue. I just want to know how can I get is replaced.
Samething on Exynos. When it hits 40c, it automatically switches to 60hz and get back when it cools down. Exynos was never good.
But one thing I can say for sure if you are worry about longevity. Never user your phone while it is charging. One thing is using your phone hot while discharging. Another thing is using it while charging and it will definitely impact battery life long term speaking.
I would disable fast charging too.
Same here! And if you have like 30-35% battery and your phone begins to heat up, say goodbye to 120hz, I think it throttles so hard that the performance can't go beyond 60.
It is really very very disappointing .It gets up so hot just using the device continues for 30 min. Once the temp cross 40+ it switches to 60hz. hahahah for this we have to pay a premium price.
Have already started to have 2nd thoughts for next galaxy devices with exynos. really really very annoying to use this phone these day in hot summers.
I hope to get it fixed soon. if not probably iam goning to quit this phone. very disappointed.
Display turns into yellow
Same problem here with ultra exynos after watching serval videos and using camera for 10 to 15 mins. At low brightness display turns yellowish because of heat and screen turns into 60 hz automatically. Has anyone noticed this yellowish problem?
kunal396 said:
Same problem here with ultra exynos after watching serval videos and using camera for 10 to 15 mins. At low brightness display turns yellowish because of heat and screen turns into 60 hz automatically. Has anyone noticed this yellowish problem?
Click to expand...
Click to collapse
Yeah, noticed that too. I tried turning off the 120hz and it fixed the issue.
Aezhyr said:
Yeah, noticed that too. I tried turning off the 120hz and it fixed the issue.
Click to expand...
Click to collapse
That's strange. I have noticed 2 times yellowish display like a filter and after increasing the brightness it was OK but after reducing again it went to yellowish. Thank you for the info..
kunal396 said:
That's strange. I have noticed 2 times yellowish display like a filter and after increasing the brightness it was OK but after reducing again it went to yellowish. Thank you for the info..
Click to expand...
Click to collapse
Yeah, i also noticed that the yellowish tone was more at night. During the day i didn't notice any problem
kunal396 said:
That's strange. I have noticed 2 times yellowish display like a filter and after increasing the brightness it was OK but after reducing again it went to yellowish. Thank you for the info..
Click to expand...
Click to collapse
Same. But it wasn't happening before so it might be a software bug.
Sent from my SM-G988B using XDA-Developers Legacy app
Same issue
Same problem here guys, I am very frustrated.
First of all why make two variants, one with snapdragon an other with exynos?
Why this discrimination?
Secondly why should I pay for a flagship and get a less than flagship experience?
I hope it is partly software fixable.
I am so gonna be very unpleasant and persistent at support. Greece here and bought s20 two days ago
glampro76 said:
Same problem here guys, I am very frustrated.
First of all why make two variants, one with snapdragon an other with exynos?
Why this discrimination?
Secondly why should I pay for a flagship and get a less than flagship experience?
I hope it is partly software fixable.
I am so gonna be very unpleasant and persistent at support. Greece here and bought s20 two days ago
Click to expand...
Click to collapse
It goes back to the early 90's when Samsung made a trade deal with Qualcomm. As a result of the trade deal, Samsung were allowed to use Qualcomms products but only in the markets where Samsung's products didn't compete directly with Qualcomms i.e the USA.
Nobody held a gun to your head when you bought the device. You could've just done a simple Google search and found a way to import the SD variant. Samsung aren't discriminating - it's called business.
If you dont like the Exynos variant, the OnePlus 8 is being announced on the 14th - that'll surely have the SD865.
It sucks, the only software solution I can see is throttling TBH.
Honestly thinking about cutting my losses on my S20+
Sent from my SM-G986B using Tapatalk
Least expected from a flagship
I have a S20 and it heats up to that level that with a cover also it gets uncomfortable to hold. And this observation is with not any heavy use, very routine use like checking Gmail, watching Youtube, browsing Instagram.
I sold my one plus 5t and got this phone, very disappointed, should have waited and bought a one plus only. Samsung, if you are hearing me please fix this - if it's a hardware issue, please recall and provide a replacement, if it's a software issue please fix. But stop asking customers to go to service centres as it is not a specific problem to any phone. Most if not all exynos customers are facing it.
We been really ****ed over by samdong with latest updates the charging has gone from 1 hr to charge from 0 to 100 too 80 mins and only reason i can think of is because of the overheating that exynos is suffering so we pay nearly 1400 notes for this piece of **** and its getting worse on every update **** you samdong

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