[Q] Suddenly screen went black - Xperia Z Q&A, Help & Troubleshooting

I bought my Xperia Z a year ago and the phone worked perfectly all the time but everything changed yesterday.
Yesterday when I was playing Modern Combat 5 on my Xperia Z, the screen suddenly went black and I thought it was just a reboot.
However it wasn't going to reboot - the phone powered off! I have to switch it on manually and nightmares were approaching.
Then, the condition became more and more serious and the phone often automatically powered off.
I thought it was rom related so I re-flashed stock rom via Flashtool and wiped everything this morning.
Now it's even not able to boot - powers off when displaying boot animation.
If the phone is connected to a charger, it won't power off and works like before.
Why and how can this problem be solved?
Thanks!

If reflashing hadn't worked, then most probably it's a hardware related issue. In most countries warranty is 24 months for a product. It's been less than 24 months since Xperia z launched so i guess you still have warranty. The best thing you could do is to send the phone for repairs.

bavarezul13 said:
If reflashing hadn't worked, then most probably it's a hardware related issue. In most countries warranty is 24 months for a product. It's been less than 24 months since Xperia z launched so i guess you still have warranty. The best thing you could do is to send the phone for repairs.
Click to expand...
Click to collapse
In China warranty is only 12 months so I have decided to repair my XZ by myself.
After times of testing and consulting, it's believed that there's something wrong with the battery.
I have bought another battery and some tools, I will peel off the back panel of XZ and replace the battery.
Thank you!

Related

Xperia Z Vibrator not working

The Xperia Z vibrator is not working
I got my Xperia Z (white) yesterday from the Sony Store. It was officially available in India from yesterday.
After switching ON the phone for first time, it seemed to vibrate once. After that I charged it a bit (for 40mins), connected it to PC companion and had an update installed (Although firmware version still remained same....so God knows what the update was all about). After that I installed my apps and everything seemed fine. I did not notice the Vibrator issue till the time I put my phone in silent mode today and as a result later realized that I had 15 missed calls since the vibrator had not worked.
I went to the service menu and did service test for all functionalities. Everything apart from the vibrator works correctly.
Can this be a firmware problem owing to the firmware that was installed through PC companion?
Or is it a faulty set itself?
I'll try to reset everything and probably go for a repair through SUS. If it works, I'll report back. Else it is back to the service centre I guess.
Just another question. If I return it to the service center now, I should get a replacement...right?? Or will they repair it instead? Its just been 2 days :'(
Damn I loved the phone so much and within a day I have this issue :'(
Anyone else having a similar problem????
Most people are having issues with the notification led, but not the vibrator. I'm beginning to suspect it's a hardware issue since it doesn't even vibrate once when you power on the phone..
cliffordlee said:
Most people are having issues with the notification led, but not the vibrator. I'm beginning to suspect it's a hardware issue since it doesn't even vibrate once when you power on the phone..
Click to expand...
Click to collapse
I'm going to the service centre tomorrow.
They are gonna replace it....right? Since it's just 2 days old and clearly a manufacturing defect with my handset??
I really hope they replace it
Having the same problem with mine. Returning tomorrow in hope to get a new one.
*Got mine replaced with a new unit today.DOA.
Sent from my Nexus 7 using xda app-developers app

[Q] Sleep of Death

Well got the sleep of death last night.
Set the Alarm, woke up this morning after the alarm time to find the Z with the notification light blinking but otherwise completely unresponsive.
Had to do a power plus vol + reset.
Anything I can do to track down the cause?
Phone is rooted but bootloader is still locked.
Could be an application.
Sent from my C6602 using xda premium
DiscipleOfKane said:
Well got the sleep of death last night.
Set the Alarm, woke up this morning after the alarm time to find the Z with the notification light blinking but otherwise completely unresponsive.
Had to do a power plus vol + reset.
Anything I can do to track down the cause?
Phone is rooted but bootloader is still locked.
Click to expand...
Click to collapse
check carefully applications that u install after root
the apps that need su grant.
x102x96x said:
check carefully applications that u install after root
the apps that need su grant.
Click to expand...
Click to collapse
Well the only permanent SU grant I've given is to better battery stats.
If it happens again I may try revoking the grant and see if it makes a difference.
I have to add here, I'm regularly getting the Sleep of Death on mine, and it's not rooted, still completely stock... so I'm thinking it's not related to rooting or any kind of root-level process.
Initially I thought it might be to do with the new-fangled 'Stamina' mode - so that's turned off too now, but I'm STILL getting it - however, some days I don't - and there's absolutely no pattern to it at all.
My next step, though I don't want to do it, will be to take it back to factory settings (no installed apps, no accounts, no syncing etc) and see if I still get it then - if I do, then it'll be jolly well back into its little Sony box and back from whence it came toute-suite... (or quickly, if that doesn't mean quickly). LOL.
As an aside, on older Xperia models (was just reading) the Sleep of Death was a 'feature' but when connecting to USB, it was recognised as the QUALCOMM device - I've just plugged my death-sleeping Xperia Z into usb, and I get NOTHING.
Question: Does everyone get a green flashing LED when in Sleep-of-Death? Mine's always green, and flashing around 1Hz (once a second) for around 300ms (I would imagine, haven't timed it!)
Perhaps an Android Update will resolve it....!
Not sure if it will help, but on my old V the sleep of death disappeared when I switched off wifi
Sent from my gorgeous White Xperia Z
It's interesting you say that; as I was away a few days ago, and forgot my charger, so put the phone into Airplane Mode overnight, and for 2 nights, didn't have the Sleep of Death.
Tonight, I will try with no wifi, and see what happens.
Thanks!
Rashkae said:
Not sure if it will help, but on my old V the sleep of death disappeared when I switched off wifi
Sent from my gorgeous White Xperia Z
Click to expand...
Click to collapse
Could be the sim card,maybe you can try with another sim.
Sent from my C6602 using xda premium
niddnet said:
It's interesting you say that; as I was away a few days ago, and forgot my charger, so put the phone into Airplane Mode overnight, and for 2 nights, didn't have the Sleep of Death.
Tonight, I will try with no wifi, and see what happens.
Thanks!
Click to expand...
Click to collapse
Can I ask where did you buy your XZ? like all the people, who have this SOD problem, could you all write, where did you bought your XZs? may be it could clarify thing...
I bought mine in HK about a week now, and nothing like SOD or anything faulty, yet (touch wood, thank god). So I was thinking may be it was one of the earlier batches from manufacturer, that were defected.
Well, mine is UK based, and supplied by CPW (Carphone Warehouse) - fully unbranded, network independent device.
To add to the SoD issue, it happened earlier on without being on charge - and NO notification light flashing - it was, in effect behaving like it was turned off - no LEDs, no screen, no response to buttons. Hard reset (Vol Up+Pwr) fixed it again - 90% battery remaining when it happened.
It's gotta be down to some software related thing... surely...? Just - what?! Roll on 4.2.2
tamir_89 said:
Can I ask where did you buy your XZ? like all the people, who have this SOD problem, could you all write, where did you bought your XZs? may be it could clarify thing...
I bought mine in HK about a week now, and nothing like SOD or anything faulty, yet (touch wood, thank god). So I was thinking may be it was one of the earlier batches from manufacturer, that were defected.
Click to expand...
Click to collapse
It does seem to be completely random some days I would get 2 SODs other times nothing for 2-3 days. It happened in the first 24hours I bought the phone. Mine was bought in Taiwan CC602, it's completely sold out so no replacement until the next batch arrives. However, the softkey reboot isn't such a big problem for me.
Stamina mode does seem to make it happen more often as well as task killers like ESTask Manager. Mine happened before root and after root. It has only happened when it hasn't been charging.
tamir_89 said:
Can I ask where did you buy your XZ? like all the people, who have this SOD problem, could you all write, where did you bought your XZs? may be it could clarify thing...
I bought mine in HK about a week now, and nothing like SOD or anything faulty, yet (touch wood, thank god). So I was thinking may be it was one of the earlier batches from manufacturer, that were defected.
Click to expand...
Click to collapse
Mine was from Clove.co.uk, it's a sim free model.
I haven't had the problem since so hopefully it was a once off or at least is pretty rare.
I don't use stamina mode and I usually leave the wifi on.
Got SOD yesterday. At one moment i took the phone and tried to wake it up, but there`s no response from the phone. Set it in charging dock and wait for 15 minutes, still nothing, LED notification was totally off. After hard reset (3 times vibro) phone started fine. Stamina mode is always off, phone is rooted but the BL is factory locked. Bought it officially in Russia, color is black, 13W06.
After Xperia T and Xperia V, “Sleep Of Death” issue, has also appeared on the new Sony Xperia Z. There is nothing official right now, only some testimonials, from people who own the device, in forums and blogs.They experienced this issue with the Android 4.1.2 – Build 10.1.A.1.350 installed.
I have ordered Xperia Z and waiting eagerly for it.. but after knowing all these things.. I am very much worried.. I sold my beautiful Arc to buy this grand cell.. :crying:
This has happened to me too, the first time was within 24 hours after taking it out of the box. So far it has happened like 3 times in a week. 2 times it was overnight and the other time it was within 30 mins of the last use. I'm currently testing if turning wifi off before I go to sleep would make the problem go away but I'm not sure on that yet.
mandarjoshiin said:
After Xperia T and Xperia V, “Sleep Of Death” issue, has also appeared on the new Sony Xperia Z. There is nothing official right now, only some testimonials, from people who own the device, in forums and blogs.They experienced this issue with the Android 4.1.2 – Build 10.1.A.1.350 installed.
I have ordered Xperia Z and waiting eagerly for it.. but after knowing all these things.. I am very much worried.. I sold my beautiful Arc to buy this grand cell.. :crying:
Click to expand...
Click to collapse
Official reposnse it that it has been identified. There's an update rolling out today but not sure if that's related or not?
Sony forum thread here

[Q] Phone starts and sounds but screen remains black, with backlight on!!

Hello all,
My Xperia was in a serious bootloop that I couldn't fix, not with pc companion not with flashtool flashing stock roms. So I gave up and sent it to the closest Sony Mobile certified repair store, it took them one month to tell me they couldn't fix it, they said they opened it, changed the battery and it still had the same problem so they also gave up and gave it to me, they did say the problem could be the motherboard. I'm now living in Brazil and getting a motherboard for the c6602 is impossible first of all because the phone was never commercialized here (and importing is impossible, it'd take 2.5 months and they'd charge me 200% of the part price, unfortunately that's how Brazil works ). Something interesting that happened is that when I got my phone back they had solved the bootloop issue but they created another issue, the phone starts makes all the sounds the screen turns on BUT all you can see in the screen is the black color, so the backlight is on but nothing shows up.
Could I be able to fix this via software? or the only option is changing the motherboard (or maybe fixing something on it)?
If any of you knows how to fix this I'd appreciate an answer.
Video here: http://youtu.be/3I4VIBAXUsc
psycho-punk said:
How do you know it isn't a display problem?
Click to expand...
Click to collapse
Because I sent it to sony and they said the problem was the motherboard and the problems the phone's been giving are pretty random, for example at the beginning the problem was that it had random reboot each one with more frequency, it when from that to just work with the ac adapter connected, it went from that to a bootloop of just showing the sony logo and restarting, after I got it from sony the problem is that it boots app (without needing to be connected) it makes all the sounds like it was working perfectly but the screen is ON but black. So because all this I'm convinced it's the motherboard.
I see changing the battery didn't fix your problem.
I think it's so sad that this phone with just more than a year of life are getting this serious problems and sony isn't doing **** to help us. They keps my phone 1 month just to tell me that it couldn't get fixed, they said they changed the battery and all but still the same problem. I've reached a point when I just don't trust sony anymore, I'm getting a galaxy s4 on monday but still I wanna fix this crappy-phone.
Well, in my case it happened out of nowhere, I wasn't doing anything special with the phone..., I'm thinking maybe restoring the TA partition would fix something? I don't know... I found the motherboard for 80 euros in aliexpress

Z3C temporary dead?

So I got my Z3C about a month now. 6 weeks ago I thoughed my phone broke, suddenly it was dead. It looked like it was bricked, but I didn't do anything with it. There was no charging light, no fibrating on a hard reset, nothing. There was not even a connection with the adb.
So I send it to a repair point and they fixed it for me. I had no idea what that do, but I was happy with it.
Yesterday it happend again and I was pretty angry. A 3 month phone broke twice! I contacted the store, because I want a new one and not another repair, because i have no faith in another repair.
Now here comes the thing. Today I tried my phone again and suddenly it was working again.
You might think I should be happy, but I'm absolulty not, because now it is hard to prove there is something wrong with my device.
I suspect the repairpoint didn't fix anything, because it was working again at that point. So they just did a factoryreset
Has anyone experienced something like this or has any clue what the problem is?
Thanking in advance.
Info
Robin94 said:
So I got my Z3C about a month now. 6 weeks ago I thoughed my phone broke, suddenly it was dead. It looked like it was bricked, but I didn't do anything with it. There was no charging light, no fibrating on a hard reset, nothing. There was not even a connection with the adb.
So I send it to a repair point and they fixed it for me. I had no idea what that do, but I was happy with it.
Yesterday it happend again and I was pretty angry. A 3 month phone broke twice! I contacted the store, because I want a new one and not another repair, because i have no faith in another repair.
Now here comes the thing. Today I tried my phone again and suddenly it was working again.
You might think I should be happy, but I'm absolulty not, because now it is hard to prove there is something wrong with my device.
I suspect the repairpoint didn't fix anything, because it was working again at that point. So they just did a factoryreset
Has anyone experienced something like this or has any clue what the problem is?
Thanking in advance.
Click to expand...
Click to collapse
first of all you should make it clear If it s software problem (which level of software) or hardware
to get this u can Repair Xperia firmware by PCC to install fresh firmware
after that if problem remains u can be sure that problem is in hardware and ask for replace
in repair center they may just install new rom and return it so just ask for replacement
:good:
I k now this post is a little old but I have the same problem. After 6 weeks of flawless use my Z3C suddenly died. Nothing would bring it back to life. I spent several hours on the phone to sony support to no avail. We tried numerous manual and computer related fixes to no avail (including flashing a new stock rom which didn't work because no phone could be detected). Finally the tech gave up and said to return to return it to where I bought it. I was in the process of doing that when suddenly the phone worked again when I pressed the power button. battery charge was showing as 74%. Unfortunately I didn't do a factory reset while I had the chance.
This afternoon I didn't use the phone for 3 hours and now it's dead again. Nothing will wake it up again.
To me it sounds like a hardware fault, not software. This is a near new phone. This shouldn't be happening. I've searched the net and found numerous others having the same problem and in every case it has resulted in a replacement phone. Unfortunately my phone seller is a long way away. I guess that will teach me to buy local and pay and bit more.
Any suggestions please as I'm desperate.
I'm also in the same boat where my g/f Xperia Z3C just died and unfortunately the phone is out of warranty as it was a grey import and not local Aussie stock.
I have tried everything to get it working. When it does switch on it doesn't last more than a few hours before it goes back to a permanent coma.
I've wiped the rom and started from scratch when it was working with the Sony Xperia Repair centre but with little success.
I was left with little choice but to take it to a repair centre to find any faults with the hardware but I'm not feeling that confident they can fix the phone without replacing the whole board which isn't worth it.
Same thing.
Hello,
Today my phone shut downs itself and i realized it after 2-3 hours.Can't force reboot with volume up + power or the yellow button near the sim slot.Also no leds working to confirm if it takes electricity or not.My phones screen changed about a month ago due to having volume changes in 3.5 mm jack while listening music.Funny thing is i gave my phone for that same reason 8 months ago and they did not changed the screen and when i asked why you changed the screen, the lady said because 3.5mm jack is together with the screen(which i do not believe).I am hoping for device to wake up like jesus...
Edit: Does android have a log that reports every incident like windows does?If so how can i access it to see why my phone decided to die and ressurected by itself?I can't get this device to technical service cause it is fine now but i want to make sure it does not happen again.

Unresponsive touchscreen

Hi,
I recently changed the screen on my Z3 compact as the original screen cracked. This worked fine for a couple of days, but then the battery drained and wouldn't recharge. I've changed the battery but now the touchscreen is unresponsive. I've carried out repairs and software updates on PC companion, tried operating in Safe mode, disabled all apps, carried out a reboot, without any success. The screen works fine on another phone. Any ideas what the problem could be?
I changed the screen on my sons Z3 compact about a year ago and exactly the same thing happened. I ended up buying him a new phone.
Just coincidence or is there an easy fix?
What kind of repairs are you able to attempt with PC Companion? Trying to get a z3c working myself.

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