Xperia Z1 Black Screen, Completely Dead already ! PLEASE HELP !

[UZIB23]

hello i have sony xperia z c603 i have the screen black problem and nothing not work , i try to press on the power button + the up volume and the phone do some reset but still the screen not work please someone help me

[Alexander1]

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

You could try to use the off button located next to the SIM card slot as described on the following link: 

http://userguide.sonymobile.com/referrer.php?region=en&product=xperia-z1#Resetting-your-device.html

If the behavior still persists, I suggest that you repair the phone software using PC Companion: 

http://www.sonymobile.com/update

In PC Companion, press start on Support Zone > Start on Update the phone/tablet software > Press the blue link that says "Repair phone/tablet". Follow these steps without the phone connected to the PC.