Z1 screen blackout and total non-responsive after firmware update

[sparklypickle]

I don't know if this is related to yesterday's firmware update but today while I was using my Xperia Z1 this morning, the screen faded very quickly to black and now is totally black (but I can tell it is still on becasue if I tilt the screen it looks greyish). The on/off button does nothing, when I plug it in to charge, no response and when I plug it into the PC it is not recognised! HELP!!

[hallrm]

You're not the only one. Others reporting dead Z1 after Kit Kat install. Mines currently at a Sony Repair Centre.

[sparklypickle]

Argh!! What fabulous timing! good job Ive got a spare phone! 

[_alexdon_ · Accepted solution]

Do this:Connect to wall socket,charge for 2 hours,force shutdown(power button+vol up until the phone vibrates 3 times).Turn it on.

[Danial-mach1]

connect to wall charger..open sd card flap push and hold off button untill phone vibrate..then let it charge for 1-2 horse

after that t ry software repair via sus

[sparklypickle]

Amazing, it lives!!!

[_alexdon_]

Xperias do not die so easily!

[sparklypickle]

Do I need to reinstall from a PC to sto pit happening again?

[_alexdon_]

You could try a repair with either PCC or SUS.

[sparklypickle]

hmm I have Z1 C6903 but I cannot find the firmware for this on the SUS...which one am i supposed to use?