switch ON issue

[sai4841]

i am using Z1 i can't switch On my Mobile please help me guys ??  i Tried every thing holding power On/Off button and volume button

[Bandolero]

Perform a software repair is the best choice for now with PC Companion, since you try to soft reset it don't work. 

Don't connect your phone first.

Download and install, than go Support Zone > Phone/ tablet software update ( Start ) > repair my phone / tablet (Blue highlight test) and follow the instruction on screen.

[_alexdon_]

Have you tried this?

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