yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 General] ArmedHitman:
Mines built in 14W17... Don't really know if its early or late.

Wouldn't Sony then replace or even fix these impaired devices with heatpipes or a heaksink at least if this was proven?
[Xperia Z2 General] zkyevolved:
I'm no engineer, but correct me if I'm wrong, no one would have to physically notice any changes? It could be something so small like the amount of thermal paste or the soldering materials / quality that could have changed that make the difference. I don't know, but I've had a few W19 devices and I'm getting a new one tomorrow. Hopefully it WON'T be a W19 device.
[Xperia Z2 General] matout7:
I am in the market for a new device

after comparing all the SD801 devices (that i had access to )

the all have the heat issue

Sony Z2

LG G3

HTC one M8

actually LG one is so bad after using the phone for couple of minutes for viewing pictures and do some net browsing it dims the brightness and u have warning that the phone is so hot

I really like the Z2 it is like the perfect phone for me so I am buying one and

the moment I got it I am going to underclock it and undervolt it to minimise heat...

about the 14wXX... in my opinion I think sony found the solution and they go quiet about it... they didn't recall anything ( reputation and stuff )

so buying 14w30 (at least) will have some effect on the presence of the problem
[Xperia Z2 General] ArmedHitman:
Is there any evidence that 14wXX are better phones? If its a thread can it be linked... Would love to have a look at it!
[Xperia Z2 General] jonmorris:
Sony kept quiet to avoid admitting any liability and to avoid a recall. If they could fix the Z2 during production without a fuss, why is the Z3 still with the problem? Any fix would be carried through from the outset.

Remember Sony said nothing until they had a software fix and suddenly came clean. Rather like Apple which won't admit to anything until it can fix it. In fact, lots of companies do that and it seems a standard operating procedure to limit damage.
[Xperia Z2 General] matout7:
look at all the forums ( not very scientific) but it can give u an indication, no one after 14w25 or 26, is talking about the issue

in fact this means 2 options

- people stopped buying this phone after certain batch number

- sony is not making any more batches

now for the heat issue, i think qualcomm is the one that should be asked because as i see, every major 801 flagship is plagued by the heat issue
[Xperia Z2 General] ipmanwck:
Agreed. Chipset to blame but they just provide it sony should have tested it under stress.

Lumia 930 also has same issue of overheating with same chip!

Totally disagree with newer models having no issues??? The z3 still has same problem and unless they move the chip away from camera all phones will be the same. Design flaw of location of chip and build probably.

Just try messing with AR effect and take some pics etc and see what happens :) darn volcano always heats my phone up!
[Xperia Z2 General] jonmorris:
But if the Z3 has the heat issue, as admitted by Sony at IFA (and even shown on some videos) and the 801 is also getting red hot on other phones (can confirm this on G3 and 930 myself) then how can Sony have fixed the issue on later Z2 batches?

I've not had it overheat since the last firmware update. Not even had the warning, but then it's been a lot cooler. Today in London it was very warm again, and I felt it getting hot when taking photos - but it still didn't shut down. Didn't do any video though.
[Xperia Z2 General] ipmanwck:
I was at lego land today and all of a sudden phone strayed heating like crazy not photo related either?

Yes today was warm but nothing like august heat so no comparison. Like I said try ar effect see what happens. If you don't get lots of hest I will be impressed.
[Xperia Z2 General] styxter:
Mine was 23 I'm not to defend with sony but I had no issues after purchasing this phone. True it heats up but using graphic intensive game, ar effect and 4k. But using photos and normal videos around 5 min nothings change. Ar effect and 4k is just a added feature for me, I'm more prioritized in other basic things such as quality photos and video that z2 has a good overall quality in that category.
[Xperia Z2 General] jonmorris:
It's the quality of the screen, the camera, the waterproofing, the magnetic dock charger, the dual speakers and a lot of other things that makes the Z2 my main phone. And I am still pretty certain I'll end up with a Z3.

But the issue of the camera failing just when you want it is something I can't ignore, and it's really annoying to have to compromise at times. Such as when out at an event where I wanted to film something, and it was warning about heat. Without any cold water to pour on it, I had to turn the phone off for a few minutes to try and help it cool down quicker - so no photos/video at all. Even when started up again, it was not long until the same thing happened.

I'd actually rather like Sony managed to redesign the Z4 so it continues to give me everything I want PLUS a camera that doesn't overheat. If we can end up with only long 4K recordings causing the problem, I'll be very happy. It's clear 4K causes problems for all phones, hence the 5 minute limit on the others - but for taking still photos, it shouldn't have an issue at all.
[Xperia Z2 General] tel033:
So it's not true that later batches have no problem? Many said it's was fixed, but then again they live in a country wheres winter
[Xperia Z2 General] ipmanwck:
Mine is fine at present in UK but summer here which compared to other countries it failed massive!! Don't listen to people saying later batches are fine because design is exactly the same with chip near camera so when chip gets hot so does camera. Not rocket science. Z3 same issue as picture I posted shows. Love the phone and probably best phone I owned but will sell before weather gets hot again and buy Note 4 if camera is as good. Plenty of other phones coming out which you can change to.
[Xperia Z2 General] bapurado:
just wondering but is the overheating solved if you change roms or different kernels?
[Xperia Z2 General] Envious_Data:
Yes and no

Only yes if that rom works on making the camera run cooler and same goes for kernel
[Xperia Z2 General] ipmanwck:
That shouldn't be the answer though.
[Xperia Z2 General] moman2000:
The heat pipe is here : by the arrow

http : // i59 . tinypic.com / qnv71u . png delete the spaces
[Xperia Z2 General] mwatson:
Ive just been into a phone shop to have a look at the z2. I tested the camera app and sure enough just over 2 minutes into recording a 4k video the app closed due to overheating.
[Xperia Z2 General] KevinB88:
I was in an airship hangar that was made to a topic paradise. It was 31 degree and I made many pics and vids with my nephew. No 4k. Phone was not more than 36 degree. My z2 is in leather bag.

Gesendet von meinem D6503 mit Tapatalk
[Xperia Z2 General] crótach:
Look at the photos of the disassembled phone and show me where the heatpipe is. Simple as that.
[Xperia Z2 General] BoneXDA:
I'm really not into small HW parts, but maybe this is one? It's seated under the SoC which itself has some metal covering it, indicating heat management.

In case that's an antenna, these metal borders around the SoC and other parts are looking interesting:
[Xperia Z2 General] crótach:
This would make perfect sense, since this is the corner where all the heat comes from, but if that's the heatpipe then it's doing a lousy job.

No heat is being conducted towards the bottom of the phone, and besides that - it would make more sense to have the heatpipe on the back, rather than conducting the heat towards the display.

Either way, judging from my phone, it's not doing much. And yeah, I've just tested 4k video, charger plugged in, torch turned on, in other words maximum heat, the thing shut down after 2 minutes. It sure doesn't look like Sony spent much time testing this :)
[Xperia Z2 General] KyleSforza:
That looks thicker than 0.02 mm to me.
[Xperia Z2 General] BoneXDA:
It does seem to go on further down looking at these shots:
[Xperia Z2 General] Mano1982:
I am not a person who usually make videos with mobile phone. But just to test 4K video today, i made a 4k Video now with Z2 and after 7 minutes, it told me that camera is shutting down because of heat. Temperature according to GSam battery was 38 degree. After restarting mobile and waiting some minutes, i started making a non-4K video and i made a video of 12 minutes before i gave up and i didn't get any heat issues or something. I like to take a lot of pictures and while taking pictures, Z2 has never had any problem.

I tested 4K video on my Note 3 and camera crashed after 5 minutes of video withouting any warning or message. Temp according to GSam Battery was 38 degree.

Earlier today i made a video of street music some minutes, but it was not a 4K video (Useless as i don't own 4k TV) and i didn't face any camera crash problem or heating issue.

EDIT: And charger was pluged in in Z2 case.
[Xperia Z2 General] tridious:
Whether if z2 uses liquid heatpipe or not, only Sony can answer that. It was reported so by numerous sites, just a simple google shows you which exactly, whether or not if that is the fact remains to be seen. Also, no one said it is the root of the problem, please understand that I was just merely putting it up for info, asking if it might be one of the causes.

As I have said earlier, my z2 got much hotter when I played games on it as compared to when the camera shuts off automatically too. I think the phone can definitely tolerate higher temperature set by the heat control policy for the camera. But my concern is whether the as set value now is what Sony's engineers felt to be a safe limit for the phone, inorder not to over deteriorate the hardwares. That is also why I have stopped playing demanding games on my device. I am thinking about making a last trip to my local sony service centre and speak with them in depth about this, though I do not have high hopes of a honest conversation with them.

I created this poll here in XDA, assuming that users of this forum are a community of tech consumers who wants the best out of their products, hence I have my trust that most users that have voted are honest in their choices. Whatever results the poll have, it will only be beneficial to users that face this issue. If there are indeed many that have no issues, then we have the right to ask for a 1 to 1 exchange based on the fact that we were given defective products. If most people face the same issue, then we have the right to question and insist that Sony give an explanation and solution for it. Cheers.
[Xperia Z2 General] KyleSforza:
You can check BteKt's review of the Z2.

They clearly mention it doesn't have any heating issues except for when recording in 4k. Not even when gaming!
[Xperia Z2 General] Mano1982:
That's the point. I can't understand why 4K is so important for people at that time when not many devices support 4K.

When it comes to heat issues, every phone heats up with heavy multitasking, gaming etc. In my opinion, Note 3 heats up more than Z2 and even Note 2.
[Xperia Z2 General] niebyl2002:
It's important to some because let's say two years from now on they will be able to play those movies back in 4K quality on their brand spanking new 4K TVs.

It's not about today or tomorrow, you keeping those videos so you can play them 5, 10, 15 years later. And that's why you want to record them with best technology that is available at the moment.
[Xperia Z2 General] BoneXDA:
Or on a 2yo 2k Nexus 10 that displays twice as many pixels as a FHD screen. Plus at 8 million video pixels captured, 4k video frames are pretty much print quality, so one could just shoot a video and choose photos with VLC Media Player later.

https://farm3.staticflickr.com/2915/14095570711_b063d9da46_o.png

https://farm3.staticflickr.com/2931/14095565711_dd1e27d982_o.png

https://farm8.staticflickr.com/7396/13912143277_ac4e88ddbf_o.png

https://farm8.staticflickr.com/7405/14095685952_b126b09fb5_o.png
[Xperia Z2 General] simplytimo:
Sounds logical.... Maybe this phone was not designed for use in summer and day time use. Only for underwater and winter nights. :)
[Xperia Z2 General] raducanmihai:
I did a test and I was able to record 5 min 18 sec on 4K (2093 MB) until I got the overheating message. The phone was in idle when I started (room temperature at around 20-22 C) and the recording was made at this temperature. I saved the recording to internal, not SD card and I still have it after the overheating message.

My previous test was a lot worse: less than 2 minutes (to SD card) till the overheating message. But I started with a warm phone after I was playing with it for about 30 minutes. The recording was also saved and I was able to play it.
[Xperia Z2 General] jayc1980:
This is my second Z2.

The first was sent back due to the glass not being level on the front and leaving the gap at the top right. I also experience camera shutdown errors, not just from 4K, but from messing about using different modes and having the camera app open for about 20 minutes.

My new device arrived, and the glass is perfect, but more to the point of this thread, I'm not getting the error on the camera, well 4K error is still there (approx 6 minutes), but other camera modes does not cause any noticeable heart development. I left recording going for approx 30 minutes and was fine, immediately tried AR after, them a few other modes then did a 5 minute 4k video, only message that popped up in all that time was low space.
[Xperia Z2 General] roanmy:
How hot is it when you guys get the " overheated" message btw?
[Xperia Z2 General] debrandman:
When did you buy the first phone and when did you get the replacement? Maybe the last one you've got is from the second batch, where they have fixed some of the issues.
[Xperia Z2 General] BoneXDA:
Not that hot actually compared to say heavy gaming, or how hot my Nexus 4 can get. But of course since the Z2 has a dual-ISP (image signal processor), if that overheats then no matter if the SoC could take some more, camera will shot down. But I don't think it's the ISP. Likely just the camera heat policy and only appearing under stress.
[Xperia Z2 General] HeartUnderBlade:
You make me feel very hopeful :) I don't plan to record 4k for more than maybe a minute since with my nexus 4 now, the longest I've ever recorded is 2 minutes.

Can I ask where did you order your phone from? Is it from the UK? My White Z2 should be coming sometime next week from the UK and I'm hoping I don't run into the overheating issue in regular camera modes.. I could care less for 4k really... lol
[Xperia Z2 General] qq67:
Mine is form phone4you UK, 1st of May. I cant use camera ion any mode more than 10 mins, ridiculous. I am sending the device back
[Xperia Z2 General] numskull:
mine is from phones4u uk, got it on april 19th..... had no issues with heat or anything generally, it does get quite warm but what smartphone doesn't? Anyway i deliberately recorded a 4k video to crash the camera, i managed 5 mins 4 secs and it saved the video to internal memory (not that its worth watching..... its my wall for 5 mins lol)

I dont really plan on using 4k recording anytime soon, so im not really bothered...... but it is advertised as recording videos in 4k...... maybe they should change it to "recording short* videos in 4k........*5mins or less" then no one can complain
[Xperia Z2 General] qq67:
I want record 4k now and watch it on my son's wedding :)

But as i said i didnt do any 4k and started to force close after 5-10mins normal video and photo shooting. Was very frustratibg to miss a good moments bec waiting for cooling down. Ice bag is good idea for baby shooting session:(
[Xperia Z2 General] qq67:
I had took it back on monday. Tested in the shop. 5 mins nromal video phot half min 4k some effect > overheat message >exchange to black > I tested the new in the shop > 5 mins overheat message> exchange to white > tested 9 mins no overhat message > tuesday 1 hour navigation > 10 photo > overheat message :(

But the white looks nicer :)
[Xperia Z2 General] cheetah2k:
I can record on my S5 for 30-40 mins no issues. I wonder what Sony did wrong in the Z2 thats caused this issue....?

I was going to swap the S5 for the Z2, but now I think I'll stick to the S5. I record a lot in 4K, because I have a 4K TV and 4K projector.
[Xperia Z2 General] feis:
Doesnt S5 have 5min software limit?
[Xperia Z2 General] Tesep:
Yea it does, I'd take what he says with a grain of salt. His post is also misleading since he didn't mention he recorded in 4k but implies it by mentioning having a 4K TV and projector.
[Xperia Z2 General] tridious:
Anyway, I have just received an update from my local sony centre, they promised me that my set will be replaced with a new one within the next few days. They were quite confident that the issue is not as widespread as thought, and would ensure that the new set is tested with no issues before exchanging it to me. So I will see whats the final outcome, hope it is as promised which will probably give whoever affected some hope of getting a 1 to 1 exchange as well.
[Xperia Z2 General] HeartUnderBlade:
That's awesome to hear! I'm lucky enough to be living near a sony store! Mind if I ask where you're from and where did you buy the phone? I'm afraid my local Sony store wouldn't be able to exchange mine if there was something wrong with it because I'm from the US and I pre-ordered it from the UK.
[Xperia Z2 General] killalot:
I got 4min 30secs shooting 4k then it shut down said camera too hot,didnt feel that hot to me no worse then my htc do we just live with it or sent it back ill try the camera later if i get chance.
[Xperia Z2 General] tridious:
I'm from Singapore, phone was bought through a local telco carrier. Hmm, you might want to write an email to Sony UK and ask for their assistance? Not quite sure if Sony has international warranty for their smartphones.
[Xperia Z2 General] Saqib Nazm:
Thread cleaned up, Do not attack each other and respect everyone. And most importantly, Stay on Topic. Thanks
[Xperia Z2 General] tridious:
Update: I have collected my phone yesterday, it is a new set which the staff assured me that it was tested to be free of the problem. I did notice the misalignment of the front panel glass, however it was explained to me that this is a normal occurrence and it will not affect the device's waterproofing capability, though a little annoyed by it I was still relieved and happy that the camera problem is finally fixed. I checked that the phone's manufactured date is 14w16, my previous was 14w13 and it was also loaded with the latest .69 software instead of the previous .55.

But...

I decided to give the camera a test run earlier today, to my dismay, the problem is still present. I was shooting in superior auto and manual mode, just switching between the different aspect ratio, iso and megapixels. My very first trial lasted 4 minutes 30 seconds. I gave it a try again after it cooled down, and it still does not cross the 5 minute mark. I retry it after doing each of the following, rebooted to safe mode, reset to factory settings, changed storage to internal - all yield the same results, with only one barely crossing the 5 minute mark. I simply cannot come up with any explanation other than maybe there is something inherently wrong with the way I use the camera? So I took my siblings' iphone 5 and samsung s5 and performed the same trial which both have no problems whatsoever.

I am at a loss now, I have made it clear to the staff at the service centre to ensure that the set is tested not only in an air-conditioned environment, and also to test it in a extended period of time. That was promised to me and yet the camera once again failed in my 1st try. It was also made known to me that this 1 to 1 exchange is a one off and any further problems will be covered under the normal servicing procedure. It have been more than a month since I first contacted Sony about this issue till now, after all the rebooting, resetting, flashing and sending for servicing, its back to square one. Is my luck really that bad? I have emailed Sony to let them know about it, will post an update again if there is to be any.
[Xperia Z2 General] ILS_SuperNova:
Right so as mentioned in other threads including my thread ive had 3 different Z2's.

Two black ones not sure the made date on first but second one was W17 and now this white one is W15...

All had the overheating on normal HD video after various times.

Im none going to try wait till store has a fresh batch and see what happens and if problem is there still im going to have to give Sony a miss!

Very disappointing as I had high hopes for this phone :(
[Xperia Z2 General] TheOnlyIntruder:
These overheating issues are so varied, I actually had my first overheat message a few days ago, but I were messing about with the timeshift video function but I didn't get any error during the use of the camera, only after using the camera for 20 minutes I dismissed the warning and carried on shooting video with no further warnings but I was charging as well at the time.

As for recording 4k, I've done upto 10 minutes so far without any problems and I reckon could go longer (I kept feeling the back of the phone and it was warming up but not as warm or hot as others have reported theirs being.
[Xperia Z2 General] ILS_SuperNova:
What week was your handset made?
[Xperia Z2 General] placebo1978:
Hi,

I got my Z2 yesterday and also have the overheating issue. Somewhere here i read, that some apps, like "Focal" don't have those issues. So today, a windy day 12 degrees, I made a new test. I installed Focal, wanted to do 4k, ain't doable yet. So, i did not close the app, let it run in the background and started to use the stock camera app to do a 4k movie and to my surprise I nearly made a 19min video (storage was full after that). Maybe I had luck, maybe it was the weather (cold enough), but maybe it was Focal running in the background. The video was saved on the internal storage.

Can someone please test this to confirm?

I have the 17.1.A.2.55 version and the phone is SimLock free with no carrier "things".

I hope this will be a good workaround.

Greets

Placebo
[Xperia Z2 General] deepgrass:
My friend just got a 14w18 batch,

the 4k video last a little longer 7 minutes then it get a phone too hot message and fc app.
[Xperia Z2 General] ahvipardik:
I think you had luck, focal does not improve anything for me.
[Xperia Z2 General] placebo1978:
Ok :(

Thx anyway.
[Xperia Z2 General] platosearwax:
I still have not tested 4K, but I can't even see myself ever shooting at that resolution so it really does not matter to me. I just now took a 1080 film and gave up after 20 minutes with no problem. The phone was certainly warm, but I have felt my old S3 much warmer. Checked the temperatures immediately after and the CPU was at 52C and the battery at 37C which seems well within healthy range for both. And it cooled down very quickly.

My phone has a manufacture code of 14W17. Possible gap on the upper right and lower left, but honestly if I had never heard of this gap problem I would never have noticed. My supposed gap looks far less noticeable than the pictures I have seen, meaning I actually have a hard time seeing if it is a gap at all.
[Xperia Z2 General] tridious:
Hi, could you share how you get the temperature for the cpu? From what I know, there is no hardware temperature sensor built in the device other than the one for the battery. All my readings so far are from the battery information that shows the temperature of the battery only.
[Xperia Z2 General] platosearwax:
I used the free app called A1 CPU Tool.

Can't post links yet so search for it. :D
[Xperia Z2 General] TheOnlyIntruder:
W15 White but my phone has a very minor gap (you have to look really close to see it) and off centre camera lens
[Xperia Z2 General] corallus:
After 11min 4k, mine was at 65c immediately after

---------- Post added at 12:24 PM ---------- Previous post was at 12:23 PM ----------

Cpu that is