yashsingh1/xdaforums huggingface dataset:
[Xperia Z2 General] Jackos:
Buy the Z3. The screen cracking issue is less then 0,01% of all devices. And I also got a theory that people let their phone fail and the screen gets weaken in some spots. Later their screen cracks while lying on the table.

Another cause could be temperature changes, so unless you're going to leave your phone in direct sunlight for long - no need to worry.

Once again, this issue is MINOR. It's more likely you're going to crack the screen when your phone slips out your hand than crack "itself".

If I were you I'd buy the Z2 as it's cheaper and not worth the additional price point if you won't use the new, minor Z3 features.
[Xperia Z2 General] BrownDog99:
I don't think it's worth the upgrade. Why in hell Sony took an 801 is beyond me. It's out of date before it's even released
[Xperia Z2 General] kptnk:
I do not agree, because it happened to my z2. It did not fell even one time, no direct sun on it or temperature variations at all. NOTHING, and the back self cracked ! I am sorry but your theory does not stand.

My experience: http://xdaforums.com/xperia-z2/general/cover-self-cracked-t2846313

This issue is MAJOR.

I dont know about the z3, obviously, but i can confirm 100% that the z2 can have major self cracking issues. It does not mean that all units will be concern, but it means that already way too much have had this problem. And for a phone at this price, it is just unacceptable.

Personaly, i will never buy a Sony device anymore, nor z3 neither z10.

Good luck guys.

IMO: buy the Moto X
[Xperia Z2 General] Jackos:
Maybe just one out of thousand. Still a minor problem. And don't tell me you stored your device on a pillow and never let it fell on the ground. I don't believe in this.
[Xperia Z2 General] kptnk:
I really dont care if you believe me or not, but i assure everyone of you that it never fell once, no shock at all, and it self cracked, same as for many other people.

Now, you believe i am a liar, fine, i dont give a ****. Go buy your next Sony, and cry when it will happen to you. I am not trolling, i am just sharing my experience.

Sorry for the OT. Just NO z3 for me, thanks.
[Xperia Z2 General] Jackos:
How can you judge all devices based on one, defective single unit?
[Xperia Z2 General] kptnk:
I bought mine 555 euros last June,and now Sony refuses to repair it under warranty, while it is obviously a major production issue.

That is all, and that is just a very good reason for me to be truly pissed off by Sony.
[Xperia Z2 General] Q.Entity:
Mine fell multiple times and remains intact. All phones crack/break. No manufacturer is free from defects and everything breaks.

However, they should repair it. Unless there is some other details missing.
[Xperia Z2 General] jonmorris:
Is that much of a threat? I mean if you decide to buy the Z11, you'll be back in a few weeks anyway given the speed Sony churns them out. :silly:
[Xperia Z2 General] Heath05:
Like most have said, the step from the Z2 to Z3 isn't that big of jump. Although, I would have been more tempted if there were signs of a purple Z3.
[Xperia Z2 General] knoxploration:
How can you claim it's a major production issue when you have no idea how frequently it happens, and you have no idea if it's a production issue? (It's just as likely you scratched the glass and caused a weak point.)
[Xperia Z2 General] tomo100brt:
You are unbelieving Thomas. Believe what you want. Mine cracked too on back glass near camera itself. And it was heating. But service gave me new one. Now on new one micro USB/micro SIM flap is opening itself. I change it and everything is OK. Too many problems whit XPERIA Z2.

That is not reason not to buy any Sony mobile phone. Because that didn't happen before XPERIA Z2. I have to thing that they fixed all XPERIA Z2 problems on XPERIA Z3. I will live with this belief. And those problems on XPERIA Z2 will force me to buy XPERIA Z3.
[Xperia Z2 General] Jackos:
I'm trying to be polite here, but you're obviously just angry, because you broke your device. There is no way glass breaks itself, you had to expose it to environment changes or apply pressure to it.

And please do not use references to the bible. I'm atheist.
[Xperia Z2 General] monry:
Haha, yeah. And this is why Sony UK admitted that there was problem with self cracking Z1 and was replacing defected units. The same problem exists on Z2, believe it or not, your problem.
[Xperia Z2 General] Jackos:
This isn't a proof ;) On the contrary, Sony is refusing warranty for "self"broken glass in many countries.

And actually that's not me having a problem, because my glass is fine :D

Via Wikipedia: Spontaneous glass breakage is a phenomenon by which toughened glass (or tempered) may spontaneously break without any apparent reason. The most common causes are:

Minor damage during installation such as nicked or chipped edges later developing into larger breaks

Binding of the glass in the frame, causing stresses to develop as the glass expands and contracts due to thermal changes or deflects due to wind

Internal defects within the glass such as nickel sulfide inclusions

Thermal stresses in the glass

Inadequate glass thickness to resist wind load

So either the glass was damaged earlier (for example during transportation) or the frame was stress-fully placed into the frame (not possible imho as the frame is plastic on it's borders) or the device was heavily overheating or cooling down.

In my personal opinion the most obvious thing is that you guys damaged (or it was damaged earlier) the glass without breaking before the spectacular breakage.

Please don't tell me it's the manufacturers fault, if they replace or cover the device under warranty. I already had two of mine devices replaced, although I was the one responsible for the malfunction.
[Xperia Z2 General] kptnk:
Oh yes i tell you, again, that it is manufactuer's fault. Either Sony replaces it or not, it is another question, depending on their honesty ; which they are not at least here in France ; it seems Sony in Poland and much more open to discussion, lucky you.

But again, i don't care why or how the glass broke spontaneously, the fact is it did break without the device having a single shock, physical or thermal. And this fact is simply not acceptable.
[Xperia Z2 General] BrownDog99:
Seems I have had this issue of cracking on all but lg so far. Not self cracking but dropping and cracking. Are you saying it just cracks for know reason?
[Xperia Z2 General] knoxploration:
That's his claim, but he has no real proof.
[Xperia Z2 General] zkyevolved:
Look, I agree and I don't agree. Something MUST be wrong for the glass to crack. It could be heat while transport, or the battery started to expand, or anything really! But the fact that it happened to you without dropping doesn't mean Sony should clean their hands of you. You deserve a new device or to have yours fixed. If there are no signs of drops or missuse, it's Sony's responsibility.
[Xperia Z2 General] kptnk:
That's exactly my point ; and the fact Sony's not willing to take responsiblity leads me to the inevitable reaction : i will never buy any Sony products, ever.
[Xperia Z2 General] knoxploration:
It's perfectly possible he put it in his back pocket and sat on it. Flex equals crack and no outward sign of abuse. Why is that Sony's responsibility to fix?
[Xperia Z2 General] jonmorris:
Maybe. Maybe not. We can't tell can we? We can throw accusations, sure, but that's it.

But thermal shock is certainly a possibility. The phone can get extremely hot, and further heated if left in the sun. A lot of people suggest a quick cooling in some water as a quick fix, but that could be lethal.
[Xperia Z2 General] knoxploration:
Yep and that was really my point. The couple of extremely vocal complainers here have no proof, nor could they. Most likely they did something to their phone that caused it, whether they were aware of it or not.

Loudly shooting about how widespread the problem is with not one iota of proof to back that up, and claiming complete innocence when neither they nor Sony knows what caused it (but Sony does clearly know there is no widespread issue or they'd be deluged in service calls) helps nothing.

What they should be doing is fighting for a reasonable repair cost, and that's all.
[Xperia Z2 General] thelastofmykind:
Before you spend your hard earned money on Sony make sure the bugs have been fixed on the z3

1) The phone gets hot even just doing basic stuff.

2) The call quality is very poor so is the volume even on speaker.

3) The GPS keeps rerouting

4) The Walkman app doesn't list some of the songs in some album in alphabetical order.

5) The chrome acts weird it closes the app while trying to zoom ( not force close) and some websites reloads by itself.

6) The double tap function works when it wants to.

These are some of the major bugs I have been having. This probably is my first and last Sony phone.
[Xperia Z2 General] Q.Entity:
I am sorry you had a bad experience with Sony. However, I have not seen defect free manufacturing.

I know several people that have Z2, none has had any of the problems you list from 2 to 6. I had a couple instances where my phone got a bit hot but nothing of concern. Considering that it is sealed and how small it is, I am surprised that it does not have more heat dissipation issues.
[Xperia Z2 General] Jiyeon90:
When you people talk about the phone getting hot, what temps are you getting? When I browse the Web my battery temp is ~30C, when I play non extreme games my temp is around 36C

Sent from my Xperia Z2
[Xperia Z2 General] mariosraptor:
http://iphoneno.com/products/Replacement-Back-cover-for-Sony-Z2-mobile.html
[Xperia Z2 General] BrownDog99:
People where always saying the g3 would over heat, I never once had that problem, until one day my GPS was on for a long time while charging and the phone shut off
[Xperia Z2 General] bapurado:
i have a sony z1 and i want to upgrade, im just not sure which one. i could get a brand new sony z2 for around ~$530 or get the z3 for ~$700 maybe $600 on tmobile. what do you guys think would be the smarter idea?
[Xperia Z2 General] LenAsh:
£430 on Amazon UK - just bought it - £100 less than the Black one.

http://www.amazon.co.uk/gp/product/B00N8N48BS/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
[Xperia Z2 General] bapurado:
do you know which model is this? very tempting...
[Xperia Z2 General] LenAsh:
I posted the link...
[Xperia Z2 General] jonmorris:
I don't think it's a widespread problem either, but Sony wouldn't be unique in doing a repair and saying nothing more of it, and not admitting to it being a wider problem (on the basis that a satisfied customer isn't necessarily going to say anything, and there's no easy way to measure it unless the company doing the repairs revealed the stats).

Only a month or two ago, Apple replaced an iPhone 5s that my dad had which had muffled audio when he was on a call. They tested it and confirmed almost immediately that it was a mic fault (rather too quickly if you ask me) and did a changeover. But when I asked if it was a common fault, they then tried to imply it was extremely rare - almost unheard of. If it was that rare, doing a quick test call to another member of staff in a busy shop and saying 'yup' to confirm a fault worthy of a straight phone swap in about 5 seconds means Apple must be very trusting!

I suspect Apple won't want to admit to any hardware problems like that.

1) My Z2 doesn't get hot for most things, and certainly hasn't since the latest firmware. The camera doesn't overheat, but has failed to start a few times, which is annoying.

2) Not had any complaints. Most of the time I get HD Voice quality, and it's exceptional. But, yes, an ordinary call can sound a bit dull - but not too quiet.

3) No problems with my GPS

4) Don't use the Walkman app, but with the number of updates I can believe there are issues. Spotify for me!

5) Chrome does all sorts of things, but it does the same on every other Android device. Latest bug is clicking on a shortcut on the home screen which opens Chrome but doesn't open the link. Very annoying! Blaming Google for that one.

6) Yes, it can be a bit hit and miss (pun probably intended!).
[Xperia Z2 General] bapurado:
As in d6603 or d6643.....
[Xperia Z2 General] thelastofmykind:
1) My Z2 doesn't get hot for most things, and certainly hasn't since the latest firmware. The camera doesn't overheat, but has failed to start a few times, which is annoying.

2) Not had any complaints. Most of the time I get HD Voice quality, and it's exceptional. But, yes, an ordinary call can sound a bit dull - but not too quiet.

3) No problems with my GPS

4) Don't use the Walkman app, but with the number of updates I can believe there are issues. Spotify for me!

5) Chrome does all sorts of things, but it does the same on every other Android device. Latest bug is clicking on a shortcut on the home screen which opens Chrome but doesn't open the link. Very annoying! Blaming Google for that one.

6) Yes, it can be a bit hit and miss (pun probably intended!).[/QUOTE]

I don't know what to say. Maybe I have a defective unit already exchanged it once. The chrome problem seems to on the other phone I have aswell. But the double tap function works as a charm on oneplusone. What build number do you have? Mine is 17.1.2.A.314. I am thinking to root the phone and try some other rom.
[Xperia Z2 General] jonmorris:
I don't know what to say. Maybe I have a defective unit already exchanged it once. The chrome problem seems to on the other phone I have aswell. But the double tap function works as a charm on oneplusone. What build number do you have? Mine is 17.1.2.A.314. I am thinking to root the phone and try some other rom.[/QUOTE]

Yes, 17.1.2.A.0.314 for me too.

Chrome seems to get ever more bloated, and with the new 'Android L' animations seems to also now lag, which is outrageous on a device with Snapdragon 801! Chrome needs to run on a whole range of devices, going down to Snapdragon 200 or even older SoC's so it's not acceptable.

I am sure Chrome will be fixed, but we have other issues to look forward to as Google continues to update its own apps with the new Android L design language, even before Android L as an OS update becomes an issue.
[Xperia Z2 General] jonmorris:
I was at Sony Mobile's party on Thursday night in London to celebrate the launch of the Z3 range, and heard rumours that in 2015 Sony is actually going to try and go for annual releases of flagships instead of every six months.

Now the thing is that Sony wants to try and get into a schedule that fits more with the competition, meaning the second half of the year. But the Z3 isn't the model to last 12 months (not Snapdragon 805/810, no QHD screen etc) so we'll probably still get a Z4 in the Spring.

However, there's hope that one year from now, the 'Z5' might actually last a whole year before being replaced. As I've argued for some time, Sony has finally started to acknowledge that such frequent updates aren't doing it any good (for a variety of reasons).

What's more, I had Sony staff who work with operators to do staff training etc, actually saying to me quite openly that operators, shop staff AND customers moan about this more than just about anything else.

So, fingers crossed this actually happens.
[Xperia Z2 General] Smartphoner:
No need!!!!
[Xperia Z2 General] cptnappy:
I'm really itching on upgrading to the Z3. The wider angle lens, the sleeker design, and most of all the improved flaps (flaps on my Z2 pops out once or twice a day without even touching them) are tempting me. But still I'm doing my best on holding off, to save that extra money for future purchases. *holding in the poop* :eek:

I must admit, you guys are right about the notification light and speaker placement. They're gorgeous on the Z2! Very subtle and cool looking. :highfive:
[Xperia Z2 General] neo2k12:
No, I won't upgrade to the Z3. I just got the Z2 a month ago and coming from a Nexus 4, I'm totally in love with the Z2's camera and screen.

I hope Sony Mobile will still be there for a Z4 or Z5. They're deep in the red figures in the mobile and TV department. I read an article saying Sony should consider giving these up and just focus on consoles, where they're doing pretty well with the PS4.
[Xperia Z2 General] olivierdo:
not sure..i would like to upgrade but i can sell my Z2 for..350 euros? and the price for the Z3 will be 700

so the double..

not sure it's a good deal
[Xperia Z2 General] styxter:
My guess is they will not exit yet since they saw the problem and targeted at the smart phone division. About the console, true they have a good sales but smartphone like z2 represent as a whole for sony. The reason is that almost all of their product relates to smartphone. Walkman is to sound, Bravia tv is to display, ps4 and sony movies are for entertainment. They should start focus on how to improved their hardware from low to mid range cause this is the main culprit of their downfall. These days, Consumers are demanding value wise ratio on performance and quality.
[Xperia Z2 General] cptnappy:
I caved! Sold my Z2 but I'm still waiting for the Z3's price to go down (or maybe a better phone for my taste if one shows up by Christmas). For now I am stuck with my old Nokia C2. :D
[Xperia Z2 General] funky0308:
Can't agree more...

Same "problem" here...

Even I can't found a real reason to upgrade to Z3, It's bugging me day after day...

In my opinion, Z2 is better looking device but - I didn't saw Z3 in person - who knows, maybe I change my mind when I see it..

Speakers and LED are nicer on Z2, for me of course but Z3, especially black version is looking great.

It's thinner and it's looking even "more premium" then Z2...

But I'll try to hold on this time and try to wait Z4.

New S805 and few more features, maybe they change their minds and design Z2 similar speakers and LED...who knows.

One more thing...

Even we all saw Sony mobile finished a fiscal year with a 2 bil $ lost, that's not "real" lost like someone, maybe, thinks.

They planned 4 bil $ profit but they end up with a 2 bil $ - so that's 2 bil $ lost.

- Just to clear that out, if someone don't understand that -
[Xperia Z2 General] hpl912:
Saw and tried the Z3 at local shop last day and it feels and looks better in person. And oddly, the price of the Z3 is cheaper compared to when the Z2 initially came out. :eek:

But still hesitating if I should sell my Z2 for the Z3... the only thing i don't like about the Z3 so far are the speakers placement... well, maybe i'll wait for the Z4 as my Z3 is not even half year old since I bought :( and the 6 months flagship is overkill IMO.
[Xperia Z2 General] [kEkA]:
Judging by their market targets, the USA now with z3, I suppose Z3 is gonna have wider support from every other community.

It's gonna be more popular then the z2 which makes me want z3.

But then again, it's too expensive to change devices like that every 6 months (4 in my situation), for me, so I'll either end up with z2 for another year or gonna sell it and get z3 compact if I find this spectaculation to be the truth.
[Xperia Z2 General] david209:
I never upgrade phones unless I loose then or once they die out on me, so far my z2 seems like it would last for a while.:good:
[Xperia Z2 General] zodiac100:
Indeed, the negative consequences of this 6 month cycle are patently obvious. It does nobody any favours. Sony included.

They'll ditch it, it's a question of when not if.

For me apple have the best business model. They only really upgrade every two years. The annual update is just a refresh.

It's about confidence in the brand which is something a lot of Sony fans don't understand.

A flagship that holds true for a year will always be a better buy than one that holds true for only 6 months.

Look at the z3 for example. It just doesn't deserve top price. There are similar specced phones like the s5, z2, m8, g3 etc on the market for much less and as a result it's price will fall in line with those others soon. It's not a class above any of those phones and cannot be priced much higher unlike say the note 4 which has more cutting edge specifications.

It's just crazy, why would Sony release a device to compete with older devices when it already had one on the market that could do so in the z2.

Why release a new phone only to sell it at a discounted price to stay competitive when they already had a capable device which was already discounted. It makes no sense.

This 6 month cycle might be the norm in Japan but Sony are a global business competing in a global market.

As such their overall business strategy should reflect the global market conditions and expectations rather than trying to impose the Japanese way on the rest of the world. It's doomed to failure! Doomed!
[Xperia Z2 General] xerwudjohn:
So far NO

so far it is not worth to upgrade your z2 to z3. I think it would be good if I will wait for the z4 or much better z5. I think that flagships has more features.
[Xperia Z2 General] Luhccas-X10:
I'll buy one Z3 a month after launch to avoid the surprises of initial batches.

Sent from my AWESOME Xperia Z2!
[Xperia Z2 General] knoxploration:
So when Apple does a mid-term update its "just a refresh"; when Sony does it, it's something to rant about on the forums. Gotcha, you're not biased at all.
[Xperia Z2 General] kalda01:
Don't see any reason to spend any extra money for a Z3 that has no real innovation over a Z2.
[Xperia Z2 General] BrownDog99:
No 805 I will get a nexus 6
[Xperia Z2 General] zodiac100:
Apple does it once a year. Sony does it every 6 months. It's about confidence in the brand! That's the point I was making. One of strategy and philosophy. I wasn't measuring the improvements or technical advancements made in the said timeframe. The timeframe itself is the issue!
[Xperia Z2 General] knoxploration:
How is it in any way an issue, though? You know your own phone is essentially identical to the new one. Your phone didn't get any less powerful because a new one was launched.

Realistically, it's only an issue if you suffer from greener grass syndrome or an inability to have anything except the absolute latest of everything, even if the only thing that changed is the name. Either way, that's *your* issue, not Sony's.
[Xperia Z2 General] jonmorris:
If it was just a few people, that's fine. But there's plenty of evidence that people don't like to buy something they know will be replaced within months. It could mean deciding to get something else, like a Galaxy S5 or Note 4 and knowing it will remain current for a year.

So what if the reason for thinking like that is misguided. Sony needs sales, so shouldn't be disregarding people who are spending rather a lot of money and can't see why there will have been 3 or 4 devices released during their contract period. Especially if a new phone comes that's essentially the same, but has a software feature that will now be only available on that new phone simply so Sony can market it as being more different than it really is.

I mean, 4K video recording works on the Z1. But it never got it because it gave the Z2 something unique. The Z3 has the PlayStation remote play feature (although it might be offered on the Z2 or Z1, it's not yet totally clear) and a few other things that are software.

I'll stand corrected if the 4.4.4 update for the Z2 gives all of these features, including the newer camera software with ISO 12,800, but suspect the Z3 will want to keep some things exclusive.

From a production, marketing and distribution point of view, it would also make more sense to have less devices released in a year.