yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 General] remyb25:
Hi there. I am mainly a lurker and hardly post but once I saw your post I knew I had to reply.

I think I know why your phone cracked. Can you check your phone and see if it is slightly bent as well?

It's a relatively common problem with the Z and the Z1. If you keep it in plastic(or other material that doesn't conduct heat) covers, heat can't get out so phone gets hot. Z1's frame is made of aluminum while the case is glass. Metal changes length more than glass when exposed to heat so the phone bends... the bend causes the glass to crack. Many z1 users reported the phone bending without ever having used a phone case as well though. I had the same issue with my old Z1. I had heard of people bending their z1s and naturally thought it was due to their stupidity or because they put it in the front pocket of their tight jeans and bent the phone from that. I was wrong. I had my z1 for about a week and had never put it in any tight pockets at all... but one day while charging I found that the phone had bent. I was stunned. This bend also eventually caused the screen to crack.

I was really hoping sony had addressed this issue but I guess not. I really wanted this phone but I will just wait for the z3 as it will have a design change.

Also - if you go to google and type in 'Bent sony xperia z1" you will find countless threads of z1 users reporting that their phone had bent "all by itself" lol. I thought this was silly and impossible at first but I soon found out that it is a real issue! :( Sony would not replace my phone either when I sent it back which was a real bummer.

Very disappointing to hear that the z2 may suffer from the same fate as its predecessors. I really wanted this phone but I am afraid that the "self bending" issue is still very much there?
[Xperia Z2 General] debrandman:
He didn't say that the phone bent but only that the glass had cracked!
[Xperia Z2 General] remyb25:
Yep, but there could be a very slight bend in the phone which he hasn't noticed yet:fingers-crossed:
[Xperia Z2 General] debrandman:
Well, then lets just ask him about that! :)
[Xperia Z2 General] emptybox333:
I just ordered the phone, coming in by the end of the week also from taiwan . Hope this doesn't happen ._.
[Xperia Z2 General] debrandman:
I hope too..but it is plausible as the frame is made out of aluminium and we all know this type of metal isn't that hard to bent(but not by itself how someone wrote!). Taking as an example the iphone 4(4S) in comparison with the Z2, they both have about the same design language but the only major thing that differs between the two(in design language), is the metal frame that the iphone incorporates and which is made not out of aluminium but steel. I wonder why....?
[Xperia Z2 General] CandyAndy:
May I ask you where you ordered the phone? I can't find any place to order from Taiwan.
[Xperia Z2 General] emptybox333:
ebay
[Xperia Z2 General] Hampurilainen:
That is not the reason for the bending and screen cracking. Lets say the phone heats up and the metal frame "stretches". The "stretching" would be far too little to notice. Plus it would then "shrink" back to the original size when cooled down again. Plus that would then happen to every Z1 out there. Plus it wouldn't happen over a period of time but rather instantly when the temperature changes drastically.

In addition, the phone isn't constructed from a single block of aluminum that is TIGHTLY (and I mean no gaps what so ever) around the front and back glass panels. What I'm trying to say is that the construction has room to "live".
[Xperia Z2 General] jonmorris:
There are probably many reasons, including a simple shock to part of the phone that is unexpected, not deliberate, and hard to ever replicate.

Look at how many phones you see in use where the glass is shattered, front and back where applicable. It might be an iPhone, it might be a Samsung.. pretty much anything.

I was concerned when I got my Nexus 4 but that never turned out to be a problem. And my Z1 has been fine too, touch wood (I've jinxed it now, obviously!).
[Xperia Z2 General] Howdoin:
Regarding the cracked back glass : the frame is not bent - I however have noticed that the phone occasionally gets pretty hot in the back, mostly when using video intensive apps.

I really love the phone and plan on keeping it (replacing the back glass). Once again I am 100% positive that I did not drop the phone or hit it on anything - I still cannot say 100% what caused the cracking : put the phone in pocket, when out for a walk and pulled it out cracked... I do remember that when i put the phone in my pocket it was "heated" as I had just watched a video. Maybe the combination of the back being hot and the walking might have put some stress on the frame and bent it during walk - this is the only explanation I have at this time.

In any case I have used smartphones since 2007 and have always kept them in my pocket and never use a case - from Iphone to several Xperias, Lumia... I never had a problem or cracked a screen.

Maybe it is bad luck but based on the cracking issue from previous Z models and the care I take of my phone I sincerely believe it is a combination of the phone being larger and thinner than most phone I have used and a combination or heating and bending in the pocket that created this cracking... in the end I am waiting to see more reviews and see if others have the problem but I think it is a design issue.
[Xperia Z2 General] Howdoin:
Here are a couple pic of the back - sorry but I already put a screen protector over in order to not make it worst - this makes the picture not as clear as could be.
[Xperia Z2 General] jonmorris:
Your Z2 has KitKat and therefore quite possibly the same issues as Z1 owners who have upgraded, finding that it can get

extremely

hot at times?

I've got a battery monitor and the temperature is usually around 31-35 degrees, but I've seen it peak at almost 45 degrees. That seems extremely hot to me, given the battery monitor I've got on my M8 is showing it not going above 35 degrees, even with quite heavy usage.

What's more, my Z1 with 4.4 isn't getting red hot because I've done anything processor intensive. Just taking some photos can be enough (prompting the camera to shut down).

Could you have done something to make the media server go wild and run hot, made worse by putting it in a pocket?

If it's down to the phone getting too hot as a result of KitKat, then really Sony should foot the bill to change the glass, but Sony clearly isn't going to admit that. For its update rolling out, it doesn't really talk about anything other than some audio issues. I think we all know there are far more serious problems than that.
[Xperia Z2 General] insom:
Hey sorry to hear that.But its looking more cool like this.
[Xperia Z2 General] emptybox333:
When i get the phone, if this happens to mine, imma put a huge sticker :D lol
[Xperia Z2 General] AirSupply:
Thank you for the report. The shattered glass back really concerns me as it is unclear how to avoid it in a long run. I may put Square Trade insurance on it when I get mine from Taiwan
[Xperia Z2 General] BoneXDA:
Just return the phone and ask for repairs, it shouldn't crack that easily, and without drop or scratch mark they can't prove user error, so they'll have to fix it.
[Xperia Z2 General] Howdoin:
I cost me $40 to purchase a new back glass and will cost me a few minutes to change it - returning to Taiwan would cost me more in shipping + probably would have to wait some time with no guarantee they will cover it. The price you pay to get your gadgets early!
[Xperia Z2 General] beni8978:
I hope your device will be waterproof again.
[Xperia Z2 General] Howdoin:
Yeah! Not planning on testing that one after I change it.
[Xperia Z2 General] AirSupply:
I thought the same thing too because the glue that keep the back glass water-proof will be gone after changing it
[Xperia Z2 General] jiggyb21:
The phone is covered by Sony's manufacturer warranty, not the company you bought it from....The last international Sony phone I bought (ZL) showed up DOA. I have to send it to Texas....they did have it for 3 weeks before sending me a brand new one. My point is I'm pretty sure you wouldn't be sending it to Taiwan and you can send it however you want......$5/$10would cover it. That sucks though.
[Xperia Z2 General] inkmars:
Back replacements for both z1 and z2 also come with the adhesive band that you apply on the phone.

This serves as a replacement for the original adhesive found inside that's also keeping it IP58 certified.
[Xperia Z2 General] drunkenjay:
i just got my xperia z2 today.

i have forced my fingers on the screen and back plate to see if it cracked but it didnt.

i think the problem you had was because the glass was heated and the cold weather caused it to smash.

most glass products tend to get weak after getting heated and the coldness will just crack it.
[Xperia Z2 General] Hampurilainen:
Actually they don't. Unfortunately the problem is that the op can't prove that he didn't press the screen hard etc. to cause the cracking.
[Xperia Z2 General] BoneXDA:
Oh no, you don't have to prove anything mate. Since they accept or decline repairs under warranty acts, they have to write up a paper and claim why warranty service is denied. But if there's no visual evidence of your wrongdoing, like cracks or dents indicating a drop, they cannot possibly prove in court that you are responsible. So "standard procedure" if warranty denied is threatening with lawsuit, and since paying legal fees for a case they'll lose is more costlier than replacing the back panel, Sony will just repair the device and extend warranty period.

The customer is well covered under warranty laws. Of course overseas repairs may not worth it because of the shipping costs, but normally they cannot screw you with a "user error" if you didn't do anything. Cracking in the pocket without drop marks is their problem not yours.
[Xperia Z2 General] vegetaleb:
How's the screen under direct sunlight? Is it usable?
[Xperia Z2 General] g4rvd4:
Hey OP.. and others who own the phone...

This is a comment from the blog post http://www.xperiablog.net/2014/04/0...sis-and-overheating-with-4k-video/#more-23854..

Can you please comment on these points?
[Xperia Z2 General] jonmorris:
The heat issue is most likely down to KitKat and the mediaserver problems mentioned elsewhere. Extreme heat could cause other problems, including damage to the battery and needs to be fixed - but it's in hand.

And the screen being super sensitive must mean it has glove mode? If so, you want to turn that off!

As for the comment on the camera, I am not entirely surprised as I can't imagine that there's a great deal of difference over the Z1 with KitKat, and auto mode is still pretty useless. As ever, people need to be educated to learn that manual is the only way to go!
[Xperia Z2 General] le_lutin:
From what I've read , there is a massive difference between the software processing of the z2 compared to the z1.
[Xperia Z2 General] jonmorris:
I've heard that too, but I've also heard (and seen for myself) some big improvements on the Z1 with the KitKat update, making me think that the camera software (as in image processing, ISO settings into auto etc) is identical once you've updated the Z1 (or Z1 Compact).

Of course you have some extra features on the Z2, but we all know that these could be made to work on the Z1 if Sony wanted. I'm sure they'll be ported in due course.

The only way to know 100% is for someone to do some really thorough testing comparing the Z1 and Z2, each with the same software. I suspect we'd then see that there's little to no difference.

My reasons for wanting the Z2 isn't the expectation that the camera will be a massive improvement. It's about the screen, audio and hopefully slightly better battery life.
[Xperia Z2 General] Hampurilainen:
Ot sorry...

So basically I could just press the screen very hard (with something soft like a finger) and brake it, in order to get a new phone whenever I feel that my phone isn't brand new anymore? And if the original poster would now dent his phone Sony could just argue that he dropped it..?

Do you have experience from a situation like this? At least in Finland a cracked screen is always considered a user error! Same thing if the "water sensors" (or what ever they are called) inside the phone get wet -> goodbye warranty. No matter if they actually got corrupted because of the humid climate or something like that.
[Xperia Z2 General] BoneXDA:
Technically speaking the cracked screen itself doesn't void warranty, the evidence of abuse does. So if no visible drop marks, scratches, dents or a concentrated crack by a sharp object, there is no way of them proving your fault and warranty cannot be denied. Sony glass did crack every now and then last year, and they had to repair under warranty if there was no evidence of your fault:

http://www.xperiablog.net/2013/11/0...ays-for-xperia-z-series-suggests-leaked-info/

"It is quite clear that since the Xperia Z has launched there have been various reports of people suffering from cracked display issues. What has been worrying for some is that these issues have occurred randomly even though the phone has not been subject to an accidental fall.

A number of people have got in touch with us over the months to talk about their specific issues. One such reader said: “Both my partner’s and my Xperia Z broke in the last week in exactly the same way – we removed the phones from our pockets as normal, but at some point the screen had broken.”

Well judging by some information that has appeared on XDA-developers, it seems Sony does recognise this and will repair such cracked displays under warranty. It points to a “Display Issue” for the Xperia Z, ZR, V, UL and Z Ultra. Basically, it guides the engineer to treat the problem as in warranty

as long as

the phone only has a “single crack in the display” and

there is no evidence of abuse

."
[Xperia Z2 General] Hampurilainen:
Thanks for the information mate. That cleared it up. I wasn't aware that this was a problem that Sony recognized and dealt with.
[Xperia Z2 General] Howdoin:
1) have not experienced this - on the contrary I find my screen to be very responsive in all occasion. The double tap to wake took me a few hours to "master" : not too fast, not too slow... it's good thing as it prevents waking up the screen by mistake in your pocket.

2) have not experienced that either but use Rdio for Music.

3) I disabled the vibration immediately - I hate my phone vibrating on each keypress (it's not a Z2 thing, I hate it on any phone)... guess i agree with the post.

4) No dead pixel, responsiveness is good, i do no find it "super-sensitive". I have no issue with the touch screen at all.

5) Did some Skype and had no issue - took a few pics with front cam and could not see any issue - I rarely use cameras on my phone so am not the best to comment regarding pic quality and options.

6) No gap issue for me - dealing with the cracked back is enough.

[MENTION=4890367]BoneXDA[/MENTION] : I feel there is a chance Sony would replace the backglass as the phone is really pristine (no dent, no scratch), only the back glass cracked in many parts. My only problem is that the phone is under warranty in Taiwan only (not worldwide). So I would be taking the risk of sending an insured package to the vendor in Taiwan, wait for Sony to say whether or not they cover. Between the round trip shipping, risk of Sony denying the claim and charging for it if not covered, it ends up being more cost effective for me to just replace it myself or have it replaced here in the USA. Not ideal but I just it's just something I accept when buying a phone in a different market just because I am too impatient to wait for it to come statewide.
[Xperia Z2 General] BoneXDA:
You are welcome. Sony is delaying the launch wherever possible cause a large amount of devices come out with problems, besides cracks and some lens problems (last year issues), HW overheating & camera crash when shooting 4k and low yield at display factory unfortunately affects the Z2 stock. As always, first adopters suffer through these problems and give Sony the feedback.

http://www.phonearena.com/news/Hardware-issues-affecting-Sony-Xperia-Z2-owners-in-Singapore_id54950

Sorry to hear that. You may still try to contact your local Sony Mobile HQ and ask if they'd be so kind to replace it, of course it's not their job but who knows, maybe Sony's now a bit nicer with the difficult launch. Trying couldn't hurt.
[Xperia Z2 General] gjokic:
Please this is important to me

How's the screen under direct sunlight?
[Xperia Z2 General] Howdoin:
So far it has been perfect... not that we had much sun in NYC in the past days. I ind the screen to be one of the best I have held in recent years.
[Xperia Z2 General] Ame123:
Can u check if the lifelog app released by sony on playstore logs your steps without the smartband??( Does it counts your step)
[Xperia Z2 General] CZ Eddie:
How does the Z2 compare against the 5s for extreme daylight sunshine visibility?

Nobody has posted the screen nits numbers yet. So I'm not sure how it rates.

But I know how the iPhone 5s rates and if you could compare it against that, this would be helpful.
[Xperia Z2 General] soulreaver99:
I live in super sunny Southern California and both the 5s and the Z2 perform very well under sunlight thanks to the IPS display panel. The Z2 is easier to read off of because the screen is larger but that's about it.
[Xperia Z2 General] SuperMarioGalaxy:
Funny how the ebay site says its genuine and the bottom reads XPERI. :D I bet its not gorilla glass...
[Xperia Z2 General] goody_23:
can you guys check to see if the in call volume level is low..i remember the z was like that
[Xperia Z2 General] augie7107:
In call volume not an issue for me.
[Xperia Z2 General] debrandman:
and there's no "SONY" logo too!
[Xperia Z2 General] jadaress1:
Yeh i sent the z back for that exact reason, itll b a deal breaker for me if it is.
[Xperia Z2 General] lovemyram4x4:
I thought Sony had international warranties(at least on things like these phones), you should be able to send the phone into the closest service to you no matter where you bought it. I know that it's common for most internationally sold items to only have warranty coverage by the country it was meant to be sold in(like a grey market item bought in country A still only has warranty in country B) but from some stuff I've read that doesn't seem to be Sony's policy.

I don't have first knowledge about this but it wouldn't to look into if you end up needing warranty coverage on your overseas purchased phone.

Sent from my Venue 8 3830 using Xparent Red Tapatalk 2
[Xperia Z2 General] kbadone:
I contacted the seller and he informed me that it's an OEM part and it has the Sony Logo, it's been removed from the pics for 'safe listing'
[Xperia Z2 General] TheKingOfPain:
So... another Xperia with weak ringtone/notification volume? That's one thing I really can't stand of my Z, I hoped they could fix it in this device.

Do you have any other device to compare maxed out volume to?
[Xperia Z2 General] inkmars:
I thought they boosted the in-call volume as well as the speaker volume and this was no longer an issue with Z2? Or at least that's what reviews and some customers said.
[Xperia Z2 General] TheKingOfPain:
Yeah, that's what they said, but the OP states he pretty much has to rely on vibration in an outdoor/crowded environment situation. I'm waiting for GSMarena sound tests, I don't blindly trust them but at least I've got some other devices to compare to.

It may be caused by the IP58 thing, the only thing I know is I can hear my friend's Note 3 typical whistle notification tone three rooms from me with all the doors closed, while I have problem hearing my Z in my pocket (well, now it's modded so I can hear it).

I really like Sony smartphones, but a phone is useful to me only if I can easily become aware of incoming calls/notifications of all sorts.
[Xperia Z2 General] jammyjamil:
My impressions of the z2

M8 Is better!
[Xperia Z2 General] solwretep:
Sometime I feel as if there are people coming here that are paid by Sammy or HTC to trash-talk Sony.

To comment on the below: Every reviewer so far has been positive to the Z2 speakers. Every reviewer has applauded the screen. You want bass from a phone-speaker? Are you kidding me? 4K a gimmick because it looks the same on a 1080p screen? You know that you need a 4K screen to watch 4K right?... What a ******* joke.

The last days XDA have been packed by trolls who knows nothing of what they speak and yet they are here to chitchat about issues that are non-existant, trivial and what not.... I cant believe this is anything but paid-by-companyX-trolls.
[Xperia Z2 General] Option58:
Thank you that definetelly is an HTC troll. I knew there's nothing wrong with Sony. Both Z1 Compact and Z2 are good (or at least not that bad).

To OEM's who bash other OEM on the internet - you are really lame!!
[Xperia Z2 General] BanziBaby:
Didn't samsung get caught paying students to give bad reviews to competitors handsets?

I do have to agree with your post, some of the posts here recently have been about the most trivial things but the posters make out it the end of the world & they off to fling themselves off the highest building lol

All new phones tend to have buggy firmware on first release which is then fixed shortly afterwards by a firmware update, I think most of those complaining about the sound haven't sussed out that sony gives you a lot of sound customisation options in the settings, all the videos I have seen show the speakers to be pretty good for a phone.

I'll keep watching the videos & stock up on tissues until I get mine :laugh:
[Xperia Z2 General] Siema89:
And I'm wondering what's the mods opinion about this massive crapstorm rolling through all Z2 forums....
[Xperia Z2 General] edge3uk:
It does seem that the negatives all arrived almost on the same day. Either way, everyone's entitled to their opinion, so long as it's valid. The reviews are glowing, the phone is damn sexy.... The wait is a pain in the arse. Lol. We all know what htc and sammy are bringing, and we want something different. Simples.
[Xperia Z2 General] AirSupply:
I have been using my Z2 for 3-4 days since I got it from Taiwan last week. The shipment only took 2 days :good:

The phone is rock solid. No gap, only one tiny stuck pixel at the bottom left of the screen and only visible on the start up screen. The speaker is loud enough to play movie or listen to some podcast. The ringtone volume is loud enough for my working environment. I keep it silent/vibrate most of the time, so it is not a big deal for me.

In general, I love the phone. The screen is vivid and the UI is smooth (no gimmick, no cartoon-look-like). I recommend this one to any friends of mine looking for a new premium phone.
[Xperia Z2 General] BR4DOKYBrazil:
WTF! The Z2 also suffering from stuck/dead pixel!

My Xperia Z has more than 5 pixel stuck! It bothered me a lot!
[Xperia Z2 General] AirSupply:
It is not noticeable at all. I can say the screen is 99.99% perfect :good:
[Xperia Z2 General] augie7107:
Agreed. Had it for a week, no issues. I never keep mine in vibrate/silent and haven't missed a call yet.
[Xperia Z2 General] BR4DOKYBrazil:
I remember the Xperia Z was this monstrous problem of stuck / dead pixel! The vast majority of devices were coming with this defect! I believe in Z2 are rare!
[Xperia Z2 General] Xernoxis:
It's time you start coming with sources before you bash on everything everywhere. "the vast majority of devices", show me.
[Xperia Z2 General] BR4DOKYBrazil:
Here:

http://xdaforums.com/xperia-z/help/stuck-dead-pixels-t2172716

And several other sites, forums and videos on YouTube!

Why instead of helping or speak politely, there are people with this attitude?

I have an Xperia Z! And at the time of its release, there was much complaint to dead / stuck pixel!