yashsingh1/xdaforums huggingface dataset:
[Xperia Z5 Compact General] br0adband:
Just noted this article so take it with a grain of salt I suppose:

http://www.phonearena.com/news/Snap...t-owners-sweat-with-overheating-issue_id74367

From what I can tell it's just one person so far reporting those types of issues but, you do have to wonder about it considering the 810 does have that reputation for overheating and Sony choosing it for their Z5 Compact if the combination will be eventually seen as a bad one.

I had a lot of interest in this smartphone, serious interest, now I'm having to step back and rethink that possible purchase until more info comes along.

Anyone else seen such reports anywhere else?
[Xperia Z5 Compact General] Tommy-Geenexus:
Absolutely no issue.

PA posting **** again.

My CPU-temp never exceeded 50-55°C so far even when gaming.

It's just right Sony went with the 810, especially the 3D performance is way above the 808.
[Xperia Z5 Compact General] Pipusz:
One variable that everybody keeps forgetting about is the build and the materials of the device. The Z5c is glass on the back which conducts even the smallest amount of heat like its a big deal (happened on my Nexus 4).

Right now, I'm hoping that dbrand or somebody will make skins for this device and then I'll be more happier.
[Xperia Z5 Compact General] hotnspicyjohnny:
At casual usage my Z5C doesn't produce heat at all. When playing titles like real racing 3 it gets as warm as the Z3C.. No worries.
[Xperia Z5 Compact General] supercakefish:
Mine is fine. No overheating here.
[Xperia Z5 Compact General] milesg:
Mine gets no hotter than my Z3c. When I got it on Friday, I logged into Spotify and downloaded tracks solidly for about 2hrs - got a bit warm but no overheating.
[Xperia Z5 Compact General] Syberyon:
The user who made the touch issue video on Youtube stated in comments that it really doesn't have any overheating issues. I'm not even sure he knows that his video is being used at Phonearena.
[Xperia Z5 Compact General] qery:
My tests on 4K recording - average CPU temperature when recording is about 60°C. When over 65, information about high temperature displays - at about 8 minutes of recording. When CPU got to 69-70 the recording stopped (9:20) and camera shut down. After that CPU temperature dropped down to 53 and is slowly going down. But the phone itself is still very hot.

Edit: tested using com.yanyan.cputemp
[Xperia Z5 Compact General] milesg:
Yeah, the guys with the touch screen problems are sometimes experiencing them after rebooting the phone - I doubt they are due to overheating.
[Xperia Z5 Compact General] dondavis007:
The screen goes sometimes bad when charging, or using 4k film. I've had my phone about 2 days and so far has had restart it 5-6 times.

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[Xperia Z5 Compact General] Jiyeon90:
What app do you use to check CPU temp?
[Xperia Z5 Compact General] Tommy-Geenexus:
DevCheck Pro.

This is an App one can trust, as the developer himself has got a SD 810 device.

No matter what i'm doing with the phone, it always seems either cool or a bit warm.

Depends on the SOC-binning and other facts, i may dive into /sys to find out some stuff.

My previous Xperia Z was about 15-20°C hotter while gaming then my Z5C.
[Xperia Z5 Compact General] SirRobin78:
Thanks for info about the used app - great to have one to check the 810 chipset... :)

I´m using it now on my tablet z4
[Xperia Z5 Compact General] RiTCHiE007:
Yea Phone Arena telling lies because this aint true and thats why they removed the article!!!!!
[Xperia Z5 Compact General] masi0:
Guys, on my spare iPhone I am experiencing similar issue with no touch response on screen from time to time which is only resolved by locking screen and unlock it. So we are not alone and we have nothing to complain.

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[Xperia Z5 Compact General] Bialynia:
Got my z5c today, no issues so far
[Xperia Z5 Compact General] scottjb:
Are you in the US? Where did you purchase it from?
[Xperia Z5 Compact General] Bialynia:
Clove in the UK, quick delivery.
[Xperia Z5 Compact General] zakiwashi:
Got mine from clove too. Try doing some timelapse and AR stuff with the camera and you will see just how toasty it gets and how fast. It is most definitely a problem. Especially when you go into these modes and it warns you that its going to get hot and may shut down!
[Xperia Z5 Compact General] bubimir13:
It does slow down when rendering the AR but nothing slower than the Z3C i previously owned. And that heat messeges is a standard for Sony, were present on Z2,Z3 seriers and now Z5 as a notification which you can ignore.

There is no overheating of this device, there is only slight warmth in back area which is perfectly normal.
[Xperia Z5 Compact General] darthbane7:
The Device definitely has some temperature issues. After heavy usage (no Games and Benchmarks) it shuts down the 4 fast A57 Cores. Device Cold: 64K Antutu, Device warm: 42K Antutu.

I have Posted a Lot of Screenies in the german Bord:

...android-hilfe.de/index.php?threads/724816/

While the 42K Antutu Benchmark was running, all A57 Cores were stopped.

My Z1 Compact reached 42K, too.
[Xperia Z5 Compact General] supercakefish:
What did the Z1 Compact reach after it got warm?
[Xperia Z5 Compact General] darthbane7:
I never had any Throttling on the Z1 Compact. At least not while cpu burn was running with four threads. Always maxed out cpu clock @ 2.125Ghz.

Antutu Reports 44K. Test started with CPU at 67 degrees Celsius. So no Throttling there either.
[Xperia Z5 Compact General] Tommy-Geenexus:
Not sure what you guys are doing.

I ran 10x Antutu and the CPU had like 50°C, the scores were still over 55k.
[Xperia Z5 Compact General] bubimir13:
I second this. for 42k you must have run it in 32bit, try 64bit
[Xperia Z5 Compact General] darthbane7:
I ran only 64Bit.

---------- Post added at 11:53 AM ---------- Previous post was at 11:33 AM ----------

Just ran again: 1. 62K, 2. 58K, 3. 48K. Temp around 50. Not even hot in my Hands, just warm.
[Xperia Z5 Compact General] darthbane7:
There is a nice test with the apps CPU burn and CPU-Z/Devcheck.

I ran 10ms active duration and 0ms sleep duration. 8 Threads on z5c and 4 on z1c.

Z1C: reaches some 74 degrees Celsius after ~ 5 minutes but had almost constant 100% cpu load with all 4 Cores running at max 2.1Ghz constantly.

Z5C: At the beginning it was 4x 1.55ghz and 4x2Ghz. After 15s started jumping between 1.6Ghz and 2Ghz (the A57 Cores) and only after ~2min the four Cores were jumping between 1.2 and 1.6Ghz. After 5 min two of the four fast Cores shut down and only two were running around 1.2-1.4 GHz. Temp around 63 degrees Celsius.

I guess after some more time all A57 Cores would shut down, which would be same scenario when I ran my 42K Antutu Test.
[Xperia Z5 Compact General] supercakefish:
So the Z5 Compact does run cooler than Z1 Compact whilst performing the same after well in excess of 5 minutes of continuous stress testing using intensive benchmarks that do not represent actual daily usage in the most common apps.
[Xperia Z5 Compact General] darthbane7:
Yes, but that also means that using the phone in summer while performing tasks like surfing the Web a lot or doing some multitasking(every day usage can be hardware intensive, even if it's "simple" tasks) will result in a heavy throttled device performing the same as a phone some generations before.

Edit:

Another thought: 60-65 degrees Celsius is not a dangerous value for a CPU or whole SOC, not even close.
[Xperia Z5 Compact General] supercakefish:
At least it runs cooler whilst doing so. Better than any other 810 device out there. And an improvement over the Z3+ disaster. There's a chance that software can improve the situation (Marshmallow update).

Also, British summers don't usually get very warm so I'm sure mine will be fine [emoji14]
[Xperia Z5 Compact General] darthbane7:
I am from South Germany. Usually I don't complain about the weather, but this year's summer was hard on both my z1c and my laptop. But then again I am from Germany, so there is Always some complaing involved ☺

I am still very interested to know how other z5c devices behave with above simple test, so if someone is eager to try, I would be happy ?

Since no direct heat issues exist with the z5c, it comes down to the question at what cost the issue has been resolved.
[Xperia Z5 Compact General] supercakefish:
I'm British, therefore I find the time to complain about the weather almost every day :D

It does have the advantage of keeping electronics from overheating though!
[Xperia Z5 Compact General] Tommy-Geenexus:
This test does in no way represent real-world workloads as you claim.

I have tested my Z5C for about 10 minutes, with the result that 3 A57 Cores were shut down.

The A53 were still running at 1,5 GHz.

A non-modded Z1C throttles at around 50°C and then slowly goes down in marginal steps.

At 60°C according to the thermal sysmon.cfg the CPU would be somewhere around 1 GHz.

I tested my black Z5C in the sun, the temp never exceeded 55°C even while doing "heavy stuff".

The GPU alone is over 2x faster than the Adreno 330, and the SD810 beats the SD800 in any state (but of course not if you disabled thermal throtteling on your Z1C).

I could go more into the details but i'll leave it this time.

Just one more thing, CPU temps > 65°C are no issue to the SOC, but to the battery.

Just watch your battery temp, temps over 40°C will result in physical damage.
[Xperia Z5 Compact General] darthbane7:
Thanks for trying this. It's strange, cause on mine all 4 Cores went down after 5 min.

On my Z1 Compact I am running Cm 12.1 but with no cpu Throttling modification whatsoever. CM has power safe, performance and balanced settings build in. I was running balanced all the time.

---------- Post added at 02:14 PM ---------- Previous post was at 02:11 PM ----------

If there are some modifications inside CM, that differ significantly from Sonys stock ROM, then comparing Z1C (CM) with z5c (stock) would not make any sense, yes.
[Xperia Z5 Compact General] Tommy-Geenexus:
It can very well be that CM has broken thermal throtteling, wouldn't be the first time.

Just to clarify: I play one of the most taxing and intensive games (Oddworld) on my Z5C with full resolution and details,

and even then the CPU-load never comes even close to 100%. Usually there are 5 Cores online.

In reality there will almost never be 8 Cores online at the same time, and CPUburns only usage is checking the SOC's limits.
[Xperia Z5 Compact General] darthbane7:
I do understand the idea of benchmarking [emoji6]

I must add to this that I started with all those Benchmarks because I felt the phone was laggy sometimes. If other people never reached an Antunutu score lower than 55K and my phone drops to 48K after third run and once even at 42K, I suspect that not all versions are behaving the same. This does not make any sense on this subject, IMHO. All z5c versions should behave the same, for same environment temperatures at least and of course within reasonable tolerances.
[Xperia Z5 Compact General] Bialynia:
My z3c got really hot using full brightness with GPS going. My ZR could probably cook eggs doing the same, but so far I have only experienced the z5c getting warm on heavy tasks. Very happy with how it handles heat issues right now.
[Xperia Z5 Compact General] thesebastian:
That's pretty good temp, the sun really warms the black phones.

Did you try it as a car's GPS?

I remember that my black Nexus 5 had a few shut downs one day in a Summer with almost 38-42ºC ambient temp; GPS ON; at the car's windshield. (Shutdown temp in this phone is between 100ºC-105ºC CPU temp). I was probably using a less aggressive thermal throttling (Franco Kernel) at that time, but anyway, with stock kernel I reach temps of more than 75ºC with some tasks (the CPU throttle in the stock kernel is based on the battery temp).

The Nexus 5 with Snapdragon 800 easily reaches 60ºC. Unless you are in Winter. (I used to reach 80ºC of CPU temp, playing "Plant Vs Zombies 2" with stock kernel in summer at 1080p resolution).

The processes that warm my Nexus 5 are:

- HD or FHD Video calls (with Hangouts using front/back camera); (Sometimes VoIP too).

- Camera service for a long time (more than 5 minutes taking photos without shutting down the camera).

- Multitasking / fast scrolling (specially in spring/summer). It doesn't burn my phone, but throttles it from 2.3Ghz to 1.5Ghz-2.0Ghz or even less.

- Gaming (this is the most heavy process, the 1080p resolution kills the Krait 400 & the Adreno 320 in some games). And the 720p resolution is one of the best aspects of the Z5 compact.

I think that this Snapdragon 810 in a Z5 compact (with more heatsinks or whatever Sony has used) will be an improvement (in warming) over the Snapdragon 800 on a Nexus 5.
[Xperia Z5 Compact General] Tommy-Geenexus:
As long as less than 7-8 Cores are running there will be no major heating issues with the Z5C at all.

The whole Display is the heatsink actually.
[Xperia Z5 Compact General] supercakefish:
I have the Nexus 5 and can confirm that the Sony phone runs cooler. It's hard to see that just from touching the exterior of the phones as glass conducts heat better than plastic, but internal temps are improved over the Nexus. The only time the Sony gets warmer than the Nexus is when charging the battery and that's because it has fast charging vs the bog standard charging in the Nexus.
[Xperia Z5 Compact General] dondavis007:
Having used a M9 that without trouble exceeded 60 Celsius on a warm day I'll can say that Glas N plastic is better but not as nice. I'm a bit troubled about N6p though.

The main problem with 810 is heat, and always will be. Underclock or tweak the cores don't take that away. It's a psychological fact that heat is the same as energy and that's coming from a battery on this phone = less SOT but thankfully a small screen :)

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[Xperia Z5 Compact General] RiTCHiE007:
Meh z5c is pretty awesome and it only got a bit hot when i first booted to install all the apps but after that its running pretty awesome so dont know why people put out these lies.
[Xperia Z5 Compact General] darthbane7:
What lies? If you drive a Ferrari with a rpm limit [MENTION=2416677]4000[/MENTION], you could as well drive a Volkswagen Golf GTI. Looks good, but cant deliver it's power without "blowing up".

"Solving" heat problems with reducing performance is not a solution at all, it's called a workaround. Luckily, Sony designed a heat pipe, giving the SoC at least a chance to deliver.

Qualcomm manufactures the SOC, but companies like Sony develop the PCB Modules, implementing the SoC and peripherials and yes, as somebody mentioned before, it is their responsibility to think of proper thermal discharge. Specs are known before you buy the stuff.

Nevertheless, it may run cooler but it's coolness has a price.
[Xperia Z5 Compact General] RiTCHiE007:
Meh not really because its the only compact model with high specs. So even if they clock down it from 2.5 to 1.8Ghz then its still a awesome phone.
[Xperia Z5 Compact General] roerisi:
I found the fix for the Acting Weird and the Overheating for the our Xperia Z5c, You need to perform a simple step, if you go on settings option and activated developer and go to the item by deactivating FORCE MSAA 4X the telephone to 100% will not suffer...

The big solution......
[Xperia Z5 Compact General] mmm286:
These option is disabled by default

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[Xperia Z5 Compact General] masi0:
Exactly
[Xperia Z5 Compact General] roerisi:
Everything must be disabled
[Xperia Z5 Compact General] masi0:
can you please be more specific, put screenshots for example etc?
[Xperia Z5 Compact General] Drakorcarnis0:
Messing with developers options won't resolve overheating issue, simply because there isn't any overheating issue. At least on my black z5c. It definitely gets warmer than my z3c, but not that much, and it never reaches the temperatures I got with my galaxy S6.
[Xperia Z5 Compact General] RiTCHiE007:
Yea its all like a storm in a glass of water. People overreacting on something they have zero clue's about and they do a judgement without ever owning a z5
[Xperia Z5 Compact General] thesebastian:
If you just disable the whole menu (where it says "Attiva") it should have the same effect.

Since that MSAA option is disabled by default.

Sent from my Nexus 5
[Xperia Z5 Compact General] roerisi:
On the menu as a developer

very important must be turned off all !!!!!!!

I have a Z5C when I entered in the menu as a developer I turned off everything and I noticed significant improvements especially not overheated...

---------- Post added at 05:36 PM ---------- Previous post was at 05:29 PM ----------

very important must be turned off all !!!!!!!

---------- Post added at 05:39 PM ---------- Previous post was at 05:36 PM ----------

hi my friend !!! I have a sony xperia z5C and I do not speak without knowledge of the facts...
[Xperia Z5 Compact General] darthbane7:
Thanks, but I am pretty sure those settings are turned off by default. Only way for them being enabled is to manually activate developer options, to enable developer options itself and then to enable those settings you mentioned above.
[Xperia Z5 Compact General] RiTCHiE007:
LOL This is not true and the z5c doesn't have any heating problems to begin with.
[Xperia Z5 Compact General] Bialynia:
Interesting, my z3c definitely got hotter and stayed hot, the z5c cools down quickly I've noticed.
[Xperia Z5 Compact General] Drakorcarnis0:
I installed stock 5.1.1 rom on z3c with the same apps as my z5c and launched a few benchmarks in the same time on both. At the end the z5c was a little bit warmer than the z3c but indeed the z5c cooled down quicker. I don't know what sort of magical snapdragon 810 Sony used on this phone but it's waaaaaay cooler than my former 14nm galaxy s6 while maintaining consistant performance: I ran about 10 antutu benchmark successively and the result was always above 60000 with decent temperature.
[Xperia Z5 Compact General] RiTCHiE007:
Nah its just the v2.1 of the 810 chip but its the double pipe cooling what makes it cool down this fast.
[Xperia Z5 Compact General] mmm286:
What temperature obtains in Xperia z5c antutu test?

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[Xperia Z5 Compact General] RiTCHiE007:
Hi i just tried it and it doesn't get hot at all. Got a score of 60608
[Xperia Z5 Compact General] darthbane7:
This was one of the highest values I could raise with cpu burn running.

Antutu ~48-55 degrees Celsius

This is only partial cpu stressing.

Real life usage around 34-38.

The device has NO heat issues! It never had. [emoji12]

But it's aggressively Throtteling down IMHO, much too early.
[Xperia Z5 Compact General] Echts:
So just did a Antutu run, got 64345 and not really any noticable heat :)

It got warmer (not really hot) during a ~15min test of recording 4K but never shutdown, but there was some slowdown but well recording does that even om computers so not really a big deal.
[Xperia Z5 Compact General] reks07:
My phone runs too hot compared to the temperatures you guys are getting.

My test results:

-Tested 4k video 3 times and could never get passed 9 minutes

-Normal usage (facebook, messenger, browsing etc) i'm getting temps around 40-48C with battery temp around 38-42C

-Gaming temps are around 55-60C and battery temps ranging from 40-48C (only gamed for 10 minutes)

-CPU burn for 2 mins got me around 60C with battery temp 39C but then after 3-4 mins phone became unresponsive and had to hard reset.

-Antutu scores: Tested twice in both 32 and 64bit getting a range of 48k-50k score with temps around 55-60C at times and battery temps around 40C

I previously owned the z3c and that phone never got hot on me like this phone does. It was only slightly warm when i game. The z5c gets too warm for me when i game and starts to get uncomfortable holding it after awhile. My other concern is the battery temps always going over 40C and possibly affecting battery life. Do you guys think my phones faulty?
[Xperia Z5 Compact General] supercakefish:
Possibly. Mine didn't have any overheating issue. Look at the temp graph in the below screenshots.
[Xperia Z5 Compact General] Jiyeon90:
It sounds like it's faulty if your battery temp is always around 40c, with light usage my battery temp is around 33c and CPU around 39c
[Xperia Z5 Compact General] supercakefish:
Do you live in a really warm, humid tropical country?
[Xperia Z5 Compact General] darthbane7:
Battery temp. has nothing to do with Throtteling cpu frequencys. I also think your test scenarios are quite different. Leave your phone to cool down completely. Then try again. Starting a benchmark with a already heated up phone will result in a very early thermal Throtteling and hence lower values. Of you use your phone constantly, even doing messaging only, it will get warmer. Every phone will and 40 degrees are quite a low value.

Again, the phone does not have any direct temperature issues, it may only have thermal Throtteling issue not allowing the phone to gets "hot".
[Xperia Z5 Compact General] reks07:
Well I did what you said and let the phone cool in between tests. These were done in the morning where the room temperature was a lot cooler (20C) here in Northern Cali. Apps used to monitor temps: DevCheck and CPUtemp

-3D Mark score of 1150 with temps below 40C (can't tell whether it's cpu or battery or both based on the monitoring data graph )

-PC Mark score of 4850 with temps below 35C( same as 3d mark monitoring data graph can't tell if it's cpu or battery temp)

-Antutu score of 59538 (highest so far for me) temps after the test was around 45C cpu and 38C battery

-10 minute of gaming on Brave frontier (non gpu intensive game) 50C cpu temp and 41C battery temp

-Day to day usage (Browsing, messaging, etc) an average of 48C cpu and 37-41C

-10 minute youtube session: an average of 48C cpu temp and 39C on battery

-4k Video Test: max of 9minutes of recording with temps of 54C cpu and 45C Battery

My original test were done in an ambient room temp of 28-29C so I'm feeling a bit of a relief that this time around the temps were lower. I still don't feel comfortable with the gaming battery temps reaching above 40C but i guess that's to be expected (Don't want the temps affecting the battery too much). I guess I'll just have to get used to a warmer phone ( I miss you z3c :crying: ) Kind of disappointed that I can't reach more than 10minutes for 4k video recording but hey at least there's no 5 minute limitations like the note 5 or Iphone 6s.
[Xperia Z5 Compact General] Echts:
Restarts are not normal behavior, screen "going bad" doesn't sound good either and all this within two days, that sounds like a faulty unit. You should check that you can reproduce the problem then go back with the phone and show them it's faulty.

On a general note;

Also remember that smaller unit means less area for heat dissipation, if the unit feels hotter then your older bigger phone (or less powerful) the take a moment to consider that it need to get rid off that heat but has a smaller area to do so. More power in a smaller box = more concentration of heat = feels like it runs hot but the electronics should be able to handle more than your hand could without you getting a burn so no worries :)
[Xperia Z5 Compact General] supercakefish:
The screen issue is a known fault with the first batch of the white colour model. The other colours aren't affected as far as I know.
[Xperia Z5 Compact General] RiTCHiE007:
I c anshoot for more then 10 minutes 4k without a problem. And only found the phone a bit warm when i first booted the device when the apps where installing but other then that it was fine even in Antutu.
[Xperia Z5 Compact General] SirRobin78:
The problem might be to know which Devices belong to first batch...

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[Xperia Z5 Compact General] rycek0:
In my z5c yellow Rev.1 while of intensive use, the battery reaches within 40 times more than for browsing the internet, some text messages , connections temperature fluctuates at around 36-38, Is everything all right I have, I have nothing to fear ?:confused: