yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 General] ILS_SuperNova:
I had a full Hd video running after 17 mins on the Google camera app so when you think about it it could software but then the level on inconsistent is shocking..

I had it on normal camera Hd video running after 15 mins in store trying to show them what happens so it made me look bit silly Un till the stores tech support line told them its a known issue and I can swap it.

My new one still has the problem so im stuck on what I should do now
[Xperia Z2 General] rehanraza:
All those having camera shutdowns follow the steps.this will not eliminate the problem but will greatly reduceit.

1. Format your device and internal storage.make sure you take backup before doung so.

2. Turn off autosync while recording.

and all should be fine
[Xperia Z2 General] tridious:
I have the overheating issue for the past month, went through numerous different attempts to fix it to no avail. Even got a new exchanged set, but still has the problem. You guys might want to check out and contribute/discuss in the earlier thread I started and take part in the poll as well. Apparently there are many who does not face this issue too.

http://xdaforums.com/showthread.php?t=2739813
[Xperia Z2 General] lywyn:
Not just 4K

So I've had phone a few weeks now and taken loads of pictures in auto mode and no problems. Even a few 4-5 minute 4K videos with no issues.

Now the weather has started to warm up for the summer I had the the overheat message taking pictures in auto mode (not recording video). I was in the garden and took 10 shots over a matter of 4 minutes and the message popped up. I waited a few minutes tried to take more and lasted 4 more pictures then stopped.

I've emailed Sony about this as I consider this product not fit for purpose as a camera-phone when the camera will be affected by the seasonal weather! Taking it on holiday would be pointless. Really gutted as I'm really impressed and happy with phone when it works.
[Xperia Z2 General] SexyIceCream:
unfortunately, you are probably gonna get a standard template reply...but your experience may explain why some people are not experiencing the overheating issue(climate)
[Xperia Z2 General] ahmedmohsin:
okay guys...here are my *semi* final conclusion about the problem of overheating:

i ran two different tests not related to 4k...just 1080p...and found the following: i have recorded both with stock app and "google camera" at temperatures of 35 degrees celcius (its quite hot in here in dubai) under direct sunlight and found out some amazing outcomes:

1) stock app: 7 minutes and 28 seconds then the shut down warning came

2) google camera: 22 minutes and 56 seconds and *i* shut down the video recording myself ! (phone wasnt even mildly hot...just a hint of being warm).

also...i found out the 20 megapixels samples taken with google camera app to be ALOT more clearer than the stock app (no soft edges...completely clear with alot of details and clarity...even at night shots without flash).

my semi final conclusion is that Sony needs to do alot of reworking on their crappy camera app...as it seems the problem is absolutely software-side. Somehow it seems the stock cam is drawing just too much power unnecessarily...or maybe something else (am no expert).

If google camera...a merely few megabytes of app coding can produce better results judging by the way the phone behaves just by the same test in comparison to the Sony stock app...then i hereby announce the advertised feature as the "worlds best waterproof cameraphone" broken...and requires alot of reworking !
[Xperia Z2 General] jonmorris:
Hey guys, just wanted to join this thread and give my own experience with .402 - and it's not good.

I thought that Sony had fixed the camera issues, bar when trying to record 4K video which I'm actively avoiding doing. I was quite happy that the camera fired up quickly, and without the 'camera not available' error that afflicted us on the earlier ROMs, as well as for the Z1 and Z1 Compact (thus confirming it's a software issue - or otherwise a hardware fault that's common to all three).

But yesterday I was out and about on one of the warmer days we've had. Not hot by any means, but in the sun at midday it was still warm enough to make the phone get hot just being in the sun.

And that's where the fun began. After taking maybe 10 photos in the space of a couple of minutes, I noticed the camera had quit and it was now feeling especially hot on the back. A check via System Panel confirmed the CPU was now around 60 degrees.

When restarting the camera, I noticed what Sony seems to have done - with a new pop up text saying it will now shut the camera to allow the camera to cool down!

Is that the fix? Close the camera? Does this mean that the camera software is heating up the phone simply by being open? I did have it in intelligent auto mode (thus it's analysing the scene all the time) so now I wish I'd moved to manual. Perhaps that's causing problems, but seriously? On a hot day, you can't have the camera on? That's going to be good in the summer holidays on a beach or anywhere else the sun dares come out!

I bet as more people start to use the Z2 in the sun, we'll see more reports of camera problems. This won't be a sudden fault developing with the phone, but rather the fault becoming known because with a high chassis temperature, the phone just can't dissipate heat - but I still can't see how or why the camera should need such CPU power.

What next? Sony issues an update that stops you using the camera at all?! Sony must fix the camera application or at least find a way to allow it to be used on a hot day - even if some functions have to be disabled (auto mode, 4K and other effects).

Edit:

Some things that people might wish to try (and I wish I had, and will next time I'm out on a warm day)

1) Use another camera app (e.g. Google's own camera app, Camera 360 etc) and see if that works okay

2) Switch to a manual mode to see if this runs better than having the phone analysing the image all the time the camera is working

3) Bring a cold bottle of water with you everywhere. Not to keep rehydrated but to cool the phone!!
[Xperia Z2 General] One Twelve:
Any idea what purpose step 1 performs here ?

Provide any sources that led you to do this.
[Xperia Z2 General] SexyIceCream:
it never worked for me. only plausible method is to turn off image stabil to extend the camera app life....
[Xperia Z2 General] rehanraza:
It's based on my personal experience and I have read few other members on this forum. May b something to do with old camera firmware residue. That's y it's always recommend to format for phone after upgrade. formatting Internal storage is optional but with those 2 steps, things worked very well for me.
[Xperia Z2 General] jonmorris:
That advice was given time and time again for the Z1 and Z1 Compact.. and totally pointless, as the problem will simply return.

In the case of the current firmware, the big problem I have is that Sony is clearly aware of the problem so much that they've now added a 'feature' by saying the camera will close to let it cool! Which basically means Sony knows it will overheat even when taking stills, let alone 4K video.

I am starting to think the design of the phone is such that it can't keep sufficiently cool, and on a hot day it's going to be made significantly worse. Was all the development carried out in Lund, Sweden during the Winter?!

If anyone wondered what Sony was going to be able to add with the Z3, I am now thinking that being able to run without getting too hot is going to need to be quite high up the list.

I really, really, hope that Sony is working to improve things and hasn't just concluded that shutting down the camera is the perfect solution!
[Xperia Z2 General] One Twelve:
Might be just a workaround while they sort out a fix. The Z & Z1 did not have this problem. ofc neither did 4k, maybe there is something that gets going even during normal HD recordings.

it's an issue with people that live in warm countries. 4k shuts down after a few seconds, and

gaming

for 15 minutes results in a phone that measures around 50 degrees c at the back. This is indoors with the ac on. Outdoors in 35-40 degree weather isn't going to be very promising.

Note that this is just gaming, no camera functions at all, which is unusual when the competition only gets into the low forties under similar stress. Needless to say that reviewer does not think recommending the z2 is a good idea.

I figured this was mostly a problem with 3g variants of the Z2, but you guys clearly have the 4g variant.

Does disabling any of the 'live' camera features do any good ?
[Xperia Z2 General] jonmorris:
I need to try manual mode to see if the auto mode which monitors the scenes constantly causes the heating. It's a theory I have which could explain it, possibly.

And it was only 21 degrees when my phone was overheating, but warmer in the direct sunlight. Nevertheless, hardly ridiculously hot in the grand scheme of things.

The Z1 and Z1 Compact each had problems with overheating, but only when I recorded video or used burst mode. That and various 'camera not available' errors that have since been fixed at least.

My wife has no such camera problems with her Z that I handed down, although she now has other more major problems since 4.4 with regards to power consumption (Google Services showing 98% usage in the battery stats). Another firmware update balls up!
[Xperia Z2 General] HeartUnderBlade:
I heard that Sony increased the frame rate of the camera app significantly which is why the viewfinder is so smooth. Could this possibly add to the heat issue?
[Xperia Z2 General] jonmorris:
Maybe. The latest camera app works far better and takes amazing pictures now, even in auto mode. Seems that there's a rather negative trade off and perhaps that's why earlier versions of the camera bumped up the ISO for lighter, but soft as s##t results? Auto was once unusable.

So Sony fixes one thing and makes something else worse. I'm not very happy about this.
[Xperia Z2 General] toptekjon:
Camera crashes every time I open the app

Just got my Z2 yesterday. I have the same issue with the camera, except that it's not just from recording in 4k (haven't even tried 4k yet).

Just having the camera open and changing settings, and a message pops up saying "the camera will now close in order to cool off". I can reproduce the error anytime. Not just random, happens EVERY time I open my camera app. Some times I can get a few photos shot, but no matter what, the app either crashes or "politely" closes itself to cool down.

Holy crap! Sony better have a fix coming soon. I can live with a few bugs, but this is humiliating for Sony. Their biggest selling feature, flat out DOES NOT WORK. AT ALL.

Probably why they haven't bothered to bring the Z2 to the USA yet.
[Xperia Z2 General] jonmorris:
It's madness isn't it?

Whoever thought a fix for a problem, which didn't appear to exist on earlier models/firmware, would be to pop up a banner saying "the camera will now close in order to cool off".

Whoever came up with the idea at Sony and had it signed off as a good solution shouldn't really continue working at Sony. While I'm so happy that the camera now takes photos that I always hoped for from the phone, I never thought I'd have to accept such a ridiculous compromise. Well, I don't accept it - it's been forced upon me and everyone else (some of whom haven't necessarily had it happen yet, but almost certainly will).

For what it's worth, off topic, since my wife got KitKat on her Xperia Z (and ignoring the other problems, namely the battery dying in 10-11 hours) her camera is now taking excellent photos too. She can now get photos that I would have only got in manual mode, and taking extra care to take. Touch wood, she's not had any problems with the camera overheating or shutting down.

So, Sony has got something right. But there must be something going on in the code that isn't right, as I haven't had my M8 or Galaxy S5 camera shut down EVER.
[Xperia Z2 General] raducanmihai:
That's definitely a hardware fault (maybe they forgot to apply thermal paste :) ). You should return/exchange it.

My phone gets warm in games, not hot. And I was able to record 10 min in 4k (on both .69 and .402 TW) in 17-18 degrees C, steady shot on, plastic case on, saved on internal memory. Both times I stopped the recording, one time without any overheating message, one time with message when I stopped it. Both times the video was saved ok.
[Xperia Z2 General] One Twelve:
how long can you play asphalt 8 or similar . Would you say the z2 the person in this

video

is using also has a hw fault. ?

Same reviewer said camera was closing after taking just 5-6 photos outdoors. outdoors where he lives is 30-35 degrees c.

Your point about hw fault is interesting, see people with similar complaints. And those that do not face it or mention it.
[Xperia Z2 General] raducanmihai:
You can't compare the 2 situations: they guy before who said that by just changing settings in camera he gets overheating error and this video where he plays high demanding games. There are two very different scenarios that can't be compared.

There is a "universal" thing you have to take into account: heat exchange is done between the ambient temperature and the phone, so bigger difference = better cooling, low difference = not so good.

Glass has similar heat transfer properties with aluminium. In this experiment:https://www.wpi.edu/Pubs/E-project/Available/E-project-031609-100626/unrestricted/MQPFinal.pdf they test which is better for consumers: glass bottle or aluminium can. I quote: "After doing the calculations, a comparison besides the physical aspects could be evaluated. As expected, the values for the heat transfer coefficients (h), rate of heat transfer (Q), and the overall heat transfer coefficient (U), were all similar" and "The experimental runs show that glass and aluminum bottles perform nearly identically thermally in warming and cooling environments".

Of course, this is a type of glass they are testing, the one in Z2 is different and aluminium is a little better for heat transfer, but not decisively. I gave you this article just to give you an idea and silence people who say that Z2 overheats because is made of glass.

I'm not trying to defend Sony. Their quality control is awful, only surpassed by their software team. For most owners I believe that a software update can fix this issue, but for some is a hardware fault.
[Xperia Z2 General] marius09:
Hi

4K recording in 18*C 10min 54sec :victory: it's 4,3GB :eek:
[Xperia Z2 General] seventieslord:
wow! this is ridiculous. I have a Z2 on the way to me and I'm very scared about what I'm going to find with the camera. With any luck, the Canadian version is updated or uses different camera software or it's coded differently. From the looks of it, we're not even sure if it's hardware or software yet! This is embarrassing. Class action territory.
[Xperia Z2 General] SolidR53:
Thank god, I live in Iceland with cold climate.

But going to Spain next month, so I hope to hell they have fixed the size of resource usage while using camera.

Will try to turn off auto sync and other heat threats i will find (once I get my phone)!
[Xperia Z2 General] Gitaroo:
just got the Canada unbranded model, over after 5 mins of 4K recording. No problem with taking photos or 1080p video. Not sure if firmware is the lastest. Heard other phones with 4K video recording also last around 5 mins before they shuts down.
[Xperia Z2 General] SexyIceCream:
depends on where you live. ambient temp is around 32 degrees here and 4k video never exceeds 5-6 mins if the phone starts from a sleep state..only 2-3 mins if you activate 4k right after using the phone for awhile
[Xperia Z2 General] zodiac100:
I tried recording in 4k last night and got up to 8mins before stopping it myself. Phone didn't shut down. This was because I switched steady shot off.

I then let the phone cool down then tried again with steady shot on and it shut down after 4 minutes 50 seconds.

My thinking is that stabilisation has something to do with it. Steady shot is a very impressive addition but seems like it puts a lot of load on the cpu.

Can others try this to see what results they get!

Update! Just tried again this morning with steady shot off and it recorded for 10 minutes and 5 seconds. Steady shot does make a difference indeed. Probably why Samsung didn't add stabilisation to the 4k video recording.
[Xperia Z2 General] Anton Sh.:
Mine Z2 with latest update still overheats even when downloading large amount of data over 4g. After downloading about 1GB i barely could use camera at all.
[Xperia Z2 General] stephen2529:
Well I've updated to 402 firmware and the other day I got the over heat message when using the camera.

Not 4k, not even taking pictures. Literally just looking at some settings and comparing it to a friends z1. Mine let's in so much more light

Than his and as a result the pictures look worse. Then after a few minutes it over heated and turned off. Must admit I'm really disappointed.
[Xperia Z2 General] Drwk340:
My results

I've got the Z2 for 3 days now. Here are the results of some quick tests:

- 4K video (SteadyShot on), storing to internal memory: 3m:29s then got the overheating message!

- 4K video (SteadyShot on), storing to SD card: 2m:52s then got the overheating message!

- 4K video (SteadyShot off), storing to SD card: 5m:49s then got the overheating message

- Full-HD video with Manual settings (60 fps), storing to SD card: 1m:18s then got the overheating message!!!

- Full-HD video with Automatic settings, storing to SD card: I shot 1h:32m (yes, one hour and a half) then was interrupted by an incoming phone call...

Basically, only Full-HD 30 fps is usable! All the rest looks like marketing stuff... Am I missing anything? :rolleyes:
[Xperia Z2 General] KevinB88:
DRWK

You are missing the possibility to exchange your faulty z2. This is not normal except you live in sahara. I stopped 4k by myself after 12 minutes recording with 32 degree outside.

Gesendet per tapatalk mit dem Xperia Z2
[Xperia Z2 General] tel033:
What batch is your device? I really want to buy this but with all the overheating issues, self cracking glass and all I'm not sure anymore
[Xperia Z2 General] Drwk340:
Manufacturing batch is 14W20.

OS build number is 17.1.A.2.55 (update not yet available here).

---------- Post added at 09:50 AM ---------- Previous post was at 09:43 AM ----------

Yes, but the risk to get another faulty Z2 in exchange is high... I'm seriously considering to replace it with a Galaxy S5. I have 30 days to decide.
[Xperia Z2 General] KevinB88:
My batch number is 14W14.

With fw 17.1.A.2.55 I got problems with 4k too but after update it is good.

Gesendet per tapatalk mit dem Xperia Z2
[Xperia Z2 General] Spellbound_91:
My Z2 overheat and when just take a pictures with camera,after 4-5 minutes and 7-8 pictures I have got a message for overheating :D

I live in Bulgaria(Plovdiv). 14W21 with .402
[Xperia Z2 General] enekomh:
I've just done a test and it lasted exactly 4 minutes while recording in 4K. I had it lying over my wallet. If I do it without lying over anything it usually lasts about 2 and a half minutes. It's nice to see that Sony thinks of us for when we shoot videos in winter so that we don't freeze our hands.
[Xperia Z2 General] tel033:
How is it after updating to. 438?
[Xperia Z2 General] cvgiu:
My z2 camera works only an attempt any 10.

from 28 to 47 celsius

it's built W 19

build 402.

live in Italy

more sun for all
[Xperia Z2 General] tel033:
So you haven't update it to .438 and it only works for 10 min?
[Xperia Z2 General] cvgiu:
the camera starts only once out of 10

last update avalaible for mine is 408

sorry for my language
[Xperia Z2 General] espe0:
Hello

After xperias z z1 z ultra now I have z2 and it's annoing with this camera! Once it's won't turn on and once it's won't get focus (like autofocus disabled) where are updates that makes our device running well?
[Xperia Z2 General] funky0308:
I noticed one thing.

If I'm recording video (in auto mod) focusing isn't good.

It's like its set to face focus and it's constantly trying to focus on faces.

As we cannot set focusing method in auto mod I set all manual modes to single autofocus.

But - still have same focusing in auto -

Anyone have solution or advice (all except "use manual")?

Sorry for OT but it's stupid to open new thread for this.
[Xperia Z2 General] sofia-captivate:
Overheating issues? Give your phone a bath ;)
[Xperia Z2 General] mathieulh:
I just tested 4K recording, I could get 9m18s of 4K video on my device (manufactured week 20) with steady shot on storing to external SD card, before my camera app shut off and the heat warning message popped up, the sound kept in sync all the way through the recording process.
[Xperia Z2 General] ipmanwck:
How do you tell manufacturer time? I just got mine yesterday and whilst setting up e.g downloading apps and sync accounts I tried opening camera and fail.
[Xperia Z2 General] mathieulh:
Look near the Micro SD slot, there is some sticker you can pull out which has the manufacturing date written on it. 14W20 on my unit.
[Xperia Z2 General] tel033:
How's the room temperature?
[Xperia Z2 General] mathieulh:
Around 25°C, so that's kinda warm.
[Xperia Z2 General] 9600xt:
Look at this answer in xperia official support forum:

http://talk.sonymobile.com/t5/Xperia-Z2/xz2-high-temperature/m-p/747135#M6882

Looks very promising!
[Xperia Z2 General] funky0308:
This is (probably) the reason why Z1 got 4.4.4 before Z2.

Sony is working on (over)heating problem and I'm sure 4.4.4 will fix out problems...

I don't have overheating problems, I'm not using 4K and never got overheating msg (temperature in my Country is around 30-32 C...

I'm not saying I won't have problems when temperature reach 40C but for now I'm perfectly satisfied with device...

(there are few mobile data issues but that's something my stupid career screwed, not Sony)
[Xperia Z2 General] lywyn:
What issue? - Sony

I tweeted [MENTION=1346574]SonyXperia[/MENTION]gb a few weeks ago the overheat issue and the response was pretty much "what is, not heard of this". I was a little annoyed so I posted a google search url back to them. Then they ask to see the message, again I posted an image I stated I had google image searched. The final response, send it in for repair. So maybe everyone should do that and sony repair centres will have a nightmare trying to fix something that they cannot?
[Xperia Z2 General] jkr284:
Im on holiday in cyprus and was looking forward to taking some holiday snaps.Once I took tye phone out of my pocket I could take 3 photos then the app switches off due to overheating. Had to get the go pro out instead which is fine for taking 1080p video for over 2 hrs!!
[Xperia Z2 General] jonmorris:
You posted this twice, so here's my response for the other post; http://xdaforums.com/showpost.php?p=54971457&postcount=239
[Nexus 5 Q&A, Help & Troubleshooting] dec1153:
When I leave it overnight it only charges to 98%. Any idea
[Nexus 5 Q&A, Help & Troubleshooting] pepdavies:
Leave it charging all day as well. Your battery life will be amazing
[Nexus 5 Q&A, Help & Troubleshooting] littleguevara:
It's trickle charging most likely, meaning that it charges to 100% then let's the battery drop a few percent and charges again slowly. I've never plugged in my N5 (I exclusively charge wirelessly) and it always charges to 100%.
[Nexus 5 Q&A, Help & Troubleshooting] OuncE718:
I use the Nokia DT-910 and my phone is always at 100% when I wake in the morning. Could be a faulty wireless charger.

neXus 5
[Nexus 5 Q&A, Help & Troubleshooting] habitformer:
What type of wireless charger are you using?I have the Google wireless charger and have no issue. It takes slightly longer than standard wall mount type.I bought a cheap wireless charger also,brought it to work used it twice as it was junk took forever. Now my son uses it as a lasso for our dog.
[Nexus 5 Q&A, Help & Troubleshooting] danarama:
Agreed
[Nexus 5 Q&A, Help & Troubleshooting] dec1153:
I have the qi wireless charger. Apparently my DC cable isn't strong enough to supply the current it needs