SONY UPDATE ENGINE FAILURE (ERROR 100)

[checks1]

sony update engine failure (error 100)

[Uliwooly]

That's probably a temporary server issue. 

[Uliwooly]

You can always contact Sony regarding this

http://support.sonymobile.com/global-en/contactUs/

[RonanN1]

I just got the same error and now I CAN'T USE MY PHONE. Every time I start it i get the message:

the software update failed make sure that your phone is connected to the computer and try again

then the phone powers off. Sony Xperia Z3.

What now?