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[Q] Blank screen, no lights, non-responsive and appears dead but...

I've had my Xperia Z for 2 weeks and have been happy with it so far. However, I has cause for concern last night when I found it "dead". About an hour prior, I checked to see how much power it still had in order to decide whether to connect it to the charger. I found it still had 76% so decided that I didn't need to. Then an hour later I picked up my phone and found pressing the Power button had no response. It just had a black screen and no lights. I held down the Power button thinking it might have just powered off but also no response. I then connected the charger and waited and holding down the Power button also nothing happened. It just was dead. On previous Android phones I would try taking the battery out but of course couldn't do that with the Xperia Z. It has not been dropped at all and not been rooted so I got worried that it had died within 2 weeks of very little use. I looked online and found someone had a similar problem with an older Xperia (T or maybe U) and they managed to switch their phone back on by holding down the Power and Volume buttons. I tried this and lucky my Xperia Z came back on.
My question is, has anyone here had a similar experience? Or know what could possible have caused it. So far it's been fine today but I am somewhat concerned that it has happened and that it could well happen again. I bought it online from the Three UK website as a PAYG phone. Do you think I should contact them for a replacement or do you think this is a problem with all Xperia Z's or it's firmware.
Thank you.

Hope it's a one-off issue.. Get a replacement it were to happen a few more times again, especially since you're running unrooted on stock! You could try re flashing your firmware using seus to see if that solves your problem, if it's corruption on the firmware/nand side, especially since such sleep of death cases on the xperia z isn't common on the xperia z as of now.

it happens for android phones often
but thr s no absolute dead for xperia phones like wht happen for galaxies.
anyway if u have warranty as u know don worry and change it
---------- Post added at 07:16 PM ---------- Previous post was at 07:16 PM ----------
ninja168 said:
I've had my Xperia Z for 2 weeks and have been happy with it so far. However, I has cause for concern last night when I found it "dead". About an hour prior, I checked to see how much power it still had in order to decide whether to connect it to the charger. I found it still had 76% so decided that I didn't need to. Then an hour later I picked up my phone and found pressing the Power button had no response. It just had a black screen and no lights. I held down the Power button thinking it might have just powered off but also no response. I then connected the charger and waited and holding down the Power button also nothing happened. It just was dead. On previous Android phones I would try taking the battery out but of course couldn't do that with the Xperia Z. It has not been dropped at all and not been rooted so I got worried that it had died within 2 weeks of very little use. I looked online and found someone had a similar problem with an older Xperia (T or maybe U) and they managed to switch their phone back on by holding down the Power and Volume buttons. I tried this and lucky my Xperia Z came back on.
My question is, has anyone here had a similar experience? Or know what could possible have caused it. So far it's been fine today but I am somewhat concerned that it has happened and that it could well happen again. I bought it online from the Three UK website as a PAYG phone. Do you think I should contact them for a replacement or do you think this is a problem with all Xperia Z's or it's firmware.
Thank you.
Click to expand...
Click to collapse
wht is ur xperia Z?
C6602 Or C6603 ?

this is prolly a bug in jelly bean xperia V also suffers from this and the issue is known as "sleep of death" you can search xda or google for it
hopefully it will get fixed in the next update which is comin "end of march"

damn, I don't like this news.
Did you on stock ?

Hi,
I believe I'm having the same issue.
Blank screen, no response to power button. Howecer when I plug the charger Led turns on red.
How did you manage to make it restart?

Shaydar said:
Hi,
I believe I'm having the same issue.
Blank screen, no response to power button. Howecer when I plug the charger Led turns on red.
How did you manage to make it restart?
Click to expand...
Click to collapse
Volume up+power for 10 seconds.
Sent from my C6602 using xda premium

Yes held down Power button and Volume up until the phone responded with a vibration and then it proceeded to boot up. Yes i am on stock. Nothing modified at all. I don't know whether to be relieved it is a known issue albeit on an older model Xperia or concerned that despite this is Sony's latest flagship device they didn't fix it before release!

Phone wont boot (only while USB is connected)

I'm having the weirdest problem.
My Xperia Z wont boot up, it will only boot when i have USB in my PC and connected to the Xperia Z.
When I disconnect the USB the phone shuts down in about 3-15 seconds.
I tried to reflash the stock tft via Flashtool.
I tried to reflash via SUS
I tried to reflash/repair via PC Companion.
At the moment stock firmware is installed but the problem is still there.
I tried to Google but I cant find anyone with the same problem.
Please help!

What's your battery like because to me is sound like a battery problem, USB is supplying power and a soon as you remove power it dies,
Boot phone up and do a service test on battery *#*#service#*#*
A maybe completely wrong
P. S. Have you had your phone near water what colour is the paper under your tabs (should be white not pink)
Sent from my C6603 using xda premium

i have the same thing ...
midego said:
I'm having the weirdest problem.
My Xperia Z wont boot up, it will only boot when i have USB in my PC and connected to the Xperia Z.
When I disconnect the USB the phone shuts down in about 3-15 seconds.
I tried to reflash the stock tft via Flashtool.
I tried to reflash via SUS
I tried to reflash/repair via PC Companion.
At the moment stock firmware is installed but the problem is still there.
I tried to Google but I cant find anyone with the same problem.
Please help!
Click to expand...
Click to collapse
I have the exact same problem! have you found a solution yet? i'm thinking it's a hardware problem because of the fact that i have had this problem on different ROMs and even when i flashed it back to original firmware using sony's flastool.
The battery test under *#*#service#*#* says there's nothing wrong with it...
It's getting really frustrating actually... Phone is practically unuseable...

i think your phone does not turns off, im having the exact same problem, try put the screen to sleep every 30 minutes, if it last 30 minutes with the screen on, then your phone is having the same problem i have:
something like the volume up button "always pressed" so the power button doesnt react because its like detecting hard reset combination.
if the screen sleeps, you press the power button it does not come up, if you connect the usb, screen comes up. phone is not off.
if its like that, im glad i helped at least identify the problem (if you find a solution other than sending to sony (they'll charge me because my warranty is void) PLEASE TELL ME
EDIT: I FIXED IT!!
http://forum.xda-developers.com/showthread.php?p=44980996#post44980996

blackknigt said:
i think your phone does not turns off, im having the exact same problem, try put the screen to sleep every 30 minutes, if it last 30 minutes with the screen on, then your phone is having the same problem i have:
something like the volume up button "always pressed" so the power button doesnt react because its like detecting hard reset combination.
if the screen sleeps, you press the power button it does not come up, if you connect the usb, screen comes up. phone is not off.
if its like that, im glad i helped at least identify the problem (if you find a solution other than sending to sony (they'll charge me because my warranty is void) PLEASE TELL ME
EDIT: I FIXED IT!!
http://forum.xda-developers.com/showthread.php?p=44980996#post44980996
Click to expand...
Click to collapse
delete

[Q] Xperia T LT30p hard brick (?) without any response from phone.

Hello everybody!
I'm new in this forum, I'm also new in Android "tuning", so I don't actually know, what to do in this situation. Ok, I've read other topics about this, but every other seems lighter than my problem.
Firstofall, I wanted to apologize for my english, but I hope, you could understand me. :fingers-crossed:
So, there is an Xperia T LT30p which has been owned by my girlfriend. She donated it to her mother and so on, so long story short, one day there appeared a key and exclamation mark in a yellow triangle (if I understood it right, I really don't know) and after that it was dead. I plugged it in wall charger - nothing, no vibration, no led, nothing, then waited for some time, nothing changed. Ok, removed the back cover, tested voltage on battery - 3,83V, not so dead, I guess... Then I started to read topics in here, sounds like a hard brick, but how to solve it..? I tried to power it up, nothing (as you expected), also tried every possible key combination (power + vol up, power + vol down, vol up/vol down + USB cable) - nothing at all, no vibration, no leds, nothing on the screen. Yesterday I downloaded PC companion, downloaded Flashtool, tried to connect it to PC, of course no drivers, but got the QHSUSB_DLOAD, so I guess, it's not that dead.
Oh yes, the only way how this phone is responding somehow is when I plug in the USB cable/wall charger with removed battery, then it does one red blink and that's all, nothing else. And that doesn't matter if there is any button pressed.
The main question is - what can I try to do in this situation? Is it fully dead?
I really hope for your answers and suggestions, otherwise, I don't really know what to do with that electronic mess on the table... :fingers-crossed:

Remove the battery and press and hold power and volume up buttons simultaneously. Then plug your phone to computer.
You'll be able to flash a kernel with Fastboot mode in Flashtool that way.
If you have the kernel the phone should boot past sony logo. You may then install whatever ftf you like via Flashtool.
Btw, I have read somewhere that the computer recognizing the phone as qhusb_dload is the result of a broken motherboard. Would make most sense anyway, as the phone was not rooted or anything.
I suggest trying above steps anyway.
Good luck!

The phone is not rooted or something, just a stock Xperia...
Just tried as you said, with removed battery pressed power + vol up simultaneously + USB - nothing, I got one red blink and nothing more, computer makes that ''no driver'' sound and that's all, flashtool doesn't find my device...
No wonder about defective motherboard, but the phone is bought in the summer 13', not so old for a phone... And what could had happened with this phone in just everyday use..?

Maybe overhearing or just bad luck with the motherboard.. Sometimes there is no explanation. :/

Is your phone still under warranty ?

Well, technically yes, but warranty card is hiding somewhere, and the phone is bought in an e-shop, i'm not sure if this shop won't send me a few doors further with my phone and I don't even know if this shop still exists..

Andrams said:
Well, technically yes, but warranty card is hiding somewhere, and the phone is bought in an e-shop, i'm not sure if this shop won't send me a few doors further with my phone and I don't even know if this shop still exists..
Click to expand...
Click to collapse
Hi, solved your problem with this method.?

xmontix said:
Hi, solved your problem with this method.?
Click to expand...
Click to collapse
Hi.
Not yet and I think I won't. I got an information about that sad day when this happened. Sony was upgrading an Android version but this process was interrupted somehow, so, I guess, it's quite dead...

Xperia SP is Dead

HELP! My Xperia SP is dead after unlocking bootloader with official way!
It won't turn on even when I tried to boot it up by connecting via usb to laptop.
I tried to charge it, but it's useless
I also tried to force restart it from restart button but it doesn't wake up
HELPP! :crying:
#UPDATE: By some miracle, the phone boots itself up and get working again. All apps are gone (like factory reset). It shut down about 2 hours then suddenly it came back to life. Still don't get it why this can be happening though. But thank God!

reynaldi3 said:
HELP! My Xperia SP is dead after unlocking bootloader with official way!
It won't turn on even when I tried to boot it up by connecting via usb to laptop.
I tried to charge it, but it's useless
I also tried to force restart it from restart button but it doesn't wake up
HELPP! :crying:
Click to expand...
Click to collapse
Have you tried the OFF button on the back?

You should try to connect your phone to pc, press volume button and keep it pressed. Then without releasing the volume button, press the restart button on the back until you see the led (blue or green depending on the volume you pressed). This means you have at the same time : usb + volume + reset button on the back.
You should keep it pressed during 3 to 15 seconds. If this doesn't work, put your phone to charge (on wall charger and preferably with stock charger) during 1-2 hours and try again.

Try reflash a stock ftf

Please provide more information to the things you did. Did you use EMMA or FLASHTOOL?

TLDGames said:
Have you tried the OFF button on the back?
Click to expand...
Click to collapse
Yes, I tried but it still doesn't work, the phone heats up while there is no sign of life. But after 2 hours it turns back on! Weird
pec0ra said:
You should try to connect your phone to pc, press volume button and keep it pressed. Then without releasing the volume button, press the restart button on the back until you see the led (blue or green depending on the volume you pressed). This means you have at the same time : usb + volume + reset button on the back.
You should keep it pressed during 3 to 15 seconds. If this doesn't work, put your phone to charge (on wall charger and preferably with stock charger) during 1-2 hours and try again.
Click to expand...
Click to collapse
I did that multiple times but there was no sign of life. No led pulse, dead screen, but only warm phone. But it came back on after 2 hours
lucasgta95 said:
Try reflash a stock ftf
Click to expand...
Click to collapse
I can't since it won't connect to anything (wall charger, usb, etc). But thank God it has come to life !
Furrydaus said:
Please provide more information to the things you did. Did you use EMMA or FLASHTOOL?
Click to expand...
Click to collapse
I use cmd since flashtool won't recognize my phone even I have install the correct driver. I read all the instructions from Sony web about unlocking bootloader and I suffer this situation. But after 2 hours it turns back on...

reynaldi3 said:
I use cmd since flashtool won't recognize my phone even I have install the correct driver. I read all the instructions from Sony web about unlocking bootloader and I suffer this situation. But after 2 hours it turns back on...
Click to expand...
Click to collapse
You should have followed the unofficiall methods and not sony

reynaldi3 said:
I did that multiple times but there was no sign of life. No led pulse, dead screen, but only warm phone. But it came back on after 2 hours
Click to expand...
Click to collapse
I have the same problem now and you made my hopes up. I was on PAC rom, normally working, but when i picked up my phone, it wasn't responding, OFF button isn't doing anything and my PC even doesn't recognize the phone over USB. So i hope it will be working again later. :fingers-crossed:
Edit: 12 hours later and still no signs of life, so im' doiwnloading ftf and i'm going to try flashing it...

Make sure you have the driver installed for your phone.
1. Download, install and run the driver update utility. Here's the link where you can download it.
http://www.driverscape.com/download/xperia-sp
2. If it doesn't detect your phone, download flashtool from here:
http://www.flashtool.net/downloads.php
Make sure you have the latest ftf image in order to flash to your phone. You can download from here.
http://forum.xda-developers.com/showthread.php?t=2311964
3. Make sure your phone is off by force shut down (clicking the OFF hard key in the back)
4. Open flashtool. Press and hold the volume down key and then connect your phone to the computer by USB.
5. The notification bar will light green indicating that it is connected in flash mode.
You can then follow instructions on how to flash through Google search. If you are able to reach step 5 and don't know how to flash, let me know.

daubh said:
Make sure you have the driver installed for your phone.
1. Download, install and run the driver update utility. Here's the link where you can download it.
http://www.driverscape.com/download/xperia-sp
2. If it doesn't detect your phone, download flashtool from here:
http://www.flashtool.net/downloads.php
Make sure you have the latest ftf image in order to flash to your phone. You can download from here.
http://forum.xda-developers.com/showthread.php?t=2311964
3. Make sure your phone is off by force shut down (clicking the OFF hard key in the back)
4. Open flashtool. Press and hold the volume down key and then connect your phone to the computer by USB.
5. The notification bar will light green indicating that it is connected in flash mode.
You can then follow instructions on how to flash through Google search. If you are able to reach step 5 and don't know how to flash, let me know.
Click to expand...
Click to collapse
Thanks, i know how to flash ftf, but my phone shows no signs of life, when plugged to charger, the LED doesn't light up and i can't go to flash mode aswell. So now it seems that the only thing i can do is to take my phone to repair, as it seems there is some hardware problem...

Dead Xperia SP Also
I have same situation since 21st of December.. I left my Phone on. When I was going to bed. I woke Up and saw this fuzzy blank grey screen, then I pressed the reset button at the back of the phone thinking all will be fine, But since then I've been battling with it. First, No sign of life after plugging, then a day later after I left it connected to my PC, The LED LIGHT turned red, but dead screen. About 15MINS later it goes off, Then comes up again (LED LIGHT) I've tried connecting to PC, it recognises it for about 4seconds and it disconnects automatically, I've tried practically all the method I saw on here.. Rubber band trick,leaving it to charge all night connected to wall charger / PC..All proved abortive, I have been trying to get the MAGIC green LED LIGHT (FLASHMODE) but it never works.. I took it to a repair shop (NOT SONY) He said he only deals with HARDWARE that it wasn't hardware problem, and they then went ahead to flash it.. (I'm out of warranty) STILL NO LUCK.. I'll be glad if anyone can guide me through or come up with a Plausible SOLUTION, 'cause my BREAK has been horrible since my PHONE went M.I.A..... Thank you GUYS

So, finally I'm going to pick up my repaired SP :fingers-crossed:. They thought it was a problem caused by the reset button pushed too hard, but since they've informed me they've changed whole motherboard, the problem must have been somwhere else, maybe they'll tell me where.
(And it seems that despite the fact i've unlocked the bootloader and flashed ROM on it, they will accept it as a warranty repair, because i think they weren't able to get to know that )

My XSP must really hate me. After less than a week since i've picked it up from the repair, it's dead again (everything tried - reset button, leaving it to charge, usb) with no signs of life ... I guess there must be a much bigger problem than just motherboard That means another two weeks with my old slow LG OO. I'm gonna die without it, i've maintained almost a month without it back then, but i had a tablet borrowed for a review. Now it's worse...
Maybe they should give me another XSP instead of trying to repair this one again...

have you considered about the battery?
the battery might be dead for all we know

That may be the problem, but i must also keep in mind that it had its motherboard changed a week ago. Anyway, i took it to the service again, they also said that charger may be causing it, but battery seems more logical to me as there were no problems with charging.
So i have to wait another two long weeks and then i'll know what was it...

[Q] My Z3C is dead

My Z3 compact is dead. It will not start after I shut it off.
I've loaded it with magnetic charger and USB cable and will not start. No lights and it does not vibrate.
I have tried to connect it to my computer and also printed on the yellow button next to the SIM card without result.
Someone who has experienced something similar?

Important
Weird !
U Didn't Do Anything Wrong ??

It is not rooted or jailbreak and not dropped to the ground. It has been in freshwater.
Today I have send it for service.

CW1980 said:
My Z3 compact is dead. It will not start after I shut it off.
I've loaded it with magnetic charger and USB cable and will not start. No lights and it does not vibrate.
I have tried to connect it to my computer and also printed on the yellow button next to the SIM card without result.
Someone who has experienced something similar?
Click to expand...
Click to collapse
I got the exact same problem TWICE a few months ago. I died completly random.
First time I send it to a repair center and they fixed it. Secend time, it came back to life after a few days:S.
I still thought it was weird behavior, so I send it to the repair center and explained very clearly what was my problem.
I think it also came alive the first time and they send it back.
I recomend you to wait a few days and try again. If it comes back to life, claim your warranty and EXPLAIN VERY CLEARLY WHATS WRONG.
Else claim your warranty anyway.
Good luck

I am experiencing exactly this issue. Tried all the usual stuff - reset button, power + Vol-Up, long press, etc. No use. Phone is just dead and refuses to wake up. It is not rooted, didn't drop it, didn't even get it wet. Will take it to the service center soon.