Sony M5 auto turn off and will not turn on after software update

[mashi]

Hi, my phone is auto off and will not turn on after perform installing software update.

I've tried Xperia companion, the backup button is disabled.

And i proceed to software repair, til the step to press volume down when re connect the phone to computer.

no response from software repair.

Have removed sd card and sim card while doing the software repair.

pls advise, thank u 

[Christofer]

Hi @mashi, I'm very sorry to hear this.

If you are unable to complete the software repair you should contact your Local support team. They can provide more information on how you can get your phone to an authorised service center.