Black screen - Xperia Z Q&A, Help & Troubleshooting

Sometimes when I open an app or close it or do something similar my screen turns black. It has a backlight on but its a black screen. I can only solve this by locking the phone and then unlocking it again. Also sometimes when I try and install an app from the market, my screen goes black and it reboots from the Xperia logo.
Any ideas, btw my phone is rooted correctly so that is not causing the problems
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slyviper1700 said:
Sometimes when I open an app or close it or do something similar my screen turns black. It has a backlight on but its a black screen. I can only solve this by locking the phone and then unlocking it again. Also sometimes when I try and install an app from the market, my screen goes black and it reboots from the Xperia logo.
Any ideas, btw my phone is rooted correctly so that is not causing the problems
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Click to expand...
Click to collapse
best way to solve these kindda problem is repair by PCC or SUS
:good:

Didn't work
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Related

Bricked

A friend of mine gave me a p990 to fix it for him,I ain't a programmer but I do have some experience with android smartphones, anyway this one when it turns on it shows the. White lg logo and a blue progressing bar, after a few seconds it reboots and that goes on and on.if I press volume down button it shows sw upgrade please wait while upgrading and it justs stays in that screen even after a long time.I don't know what happened exactly,i guess bad flashing, anyway what should I do to get it back in shape
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check
http://forum.xda-developers.com/showthread.php?t=2020737
all you need is there, and well explained...
Thanks a lot!
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Cyanogenmod 10.1.2-yuga randomly reboots

There seems to be no consistent pattern. The screen goes black and then the phone reboots. It happens during apparently very random actions.
Has anyone experienced this?
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And you think Development is the right place to ask this?

[Q] Screen goes black when watching movies

Since .245 my screen goes black when watching movies. Screen doesn't time out but just goes black. As soon as I touch the screen the video comes back.
Already reinstalled ROM but problem stays.
Tried different video players but no difference.
Tried screen forced on apps but doesn't work since screen doesn't time out but just goes black.
Any ideas?
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Redeque said:
Since .245 my screen goes black when watching movies. Screen doesn't time out but just goes black. As soon as I touch the screen the video comes back.
Already reinstalled ROM but problem stays.
Tried different video players but no difference.
Tried screen forced on apps but doesn't work since screen doesn't time out but just goes black.
Any ideas?
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Click to expand...
Click to collapse
Same issue. But in my case.. the Front Camera is also affected.
Just checked and same here with the front camera. Annoying!
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Redeque said:
Just checked and same here with the front camera. Annoying!
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Click to expand...
Click to collapse
Did you use the pre-rooted kernel from Alivanov?
AFAIK, there was a fix released for the same
sarkar1990 said:
Did you use the pre-rooted kernel from Alivanov?
AFAIK, there was a fix released for the same
Click to expand...
Click to collapse
I did !
Not me. Just stock kernel and tried multiple roms including stock (deodexed)
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Make hw overlays off. Me I had the same problem and by me is gpu on. It's work but must make after every reboot
Gesendet von meinem Xperia SP

Call problem

When i call someone the screen become black . I know it not a problem . But when call ended the screen still black and wont turn on . I already push the power but nothing happen .. This always happen when i call someone. What should i do ??
Sorry for my bad english
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What rom are you using?
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I'm on stock rom 2.254
Facing the same problem too. I'd have to press the power button twice to get the screen to turn on again after the call.
Got my face off the proximity sensor and yet my screen remain blank.
Symptom is quite similar with the screen on button issue where one has to press the power button 3 times to get the screen to show up from sleep.
I guess we just have to wait/hope for sony to resolve em..
I use existens roms . but when i use another rom i have same problem .
Yeah duckchrno i have same problem with u . Ok thx for your suggestion
I hope sony to resolve soon too
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Try flash kernel only 2.254 using flashtools...probably i never got that issue on 2.254
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Thx for ur suggestion bro . I will try
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I am on stock 2.254 and this never happened to me untill yesterday once. Today it happened again after one call. It does not happen on all the calls. It's totally random , just like the wake-up bug or whatever it's called. I tried to reproduce it but I was not able.
Yeah, we're same bro . This happened random ( i think ) coz . Yesterday i call someone and this not happen ..
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Brightness changing on its own?

I just got my XZ1 Today and straight away upgraded to 4.3.
I am having problems with the brightness, I have turned the 'adapt to lighting' setting off, but each time i go to my home screen my screen brightness goes down, it also does the same when I go to the last page of the app draw. This also occurs when starting games, the brightness will go down in the loading screen and then go normal when the game starts.
Is this a bug/issue, or is this meant to happen? If its the former, is there a fix
Sorry if this sounds newbie
Thanks,
Alex
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Anyone?
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