Xperia z randomly does not wake up for a minute or so!

[saabuldin]

Recently in the last week while using my xperia z, when I press power button, it goes to standby and screen goes off. But as I press the power button again, it does not wake. It still runs and I get messages and notification led works but screen does not come on. I keep pressing power button and after about 30 to 60 seconds the screen comes on again. What could be causing this problem? First problem since the sudden death glitch.

[_alexdon_]

Boot your phone into safe mode,see if the same occurs:

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

[saabuldin]

It did the same in safe mode. Other thing I noticed is if I press power button off and on at lock screen then iI works fine. But as soon as I unlock screen then turn off. It won't come back on until after a few presses and about 10 20 seconds.

It also mostly happens at night when I'm in bed using my phone, could it be caused by the phone heating up.?

[_alexdon_]

Strange.It means no 3rd party app should interfere.Do you have,by the way,any task killers or battery savers?

[Danial-mach1]

I think it's firmware issue 

Cause other users reported this... Also we got this on our last sw on sp

If software Repiar didn't solve it then it's firmware issue 

[saabuldin]

No. I don't believe in them. All I use is stamina mode.

[saabuldin]

Does that mean we have to wait for Sony for the fix

[_alexdon_]

Do you have the option for power button to end call?

[saabuldin]

I did have. Since new firmware I haven't checked. Where would be?

[saabuldin]

Found it. Yes I do have that option