XA dual power button doesn't respond & remains dead for 15 mins

[T_Gurrero]

It doesn't work sometimes & remains dead for 15-20mins. After that it automatically restarts. Any suggestions? New handset 

[Qatrium]

Hello @T_Gurrero

I'd suggest that you perform a software repair using Xperia Companion. This will do a clean installation of the latest firmware and will also wipe your internal memory. Don't forget to backup using Xperia Companion, but preferably without adding apps or settings to the backup.

Follow the steps given in blue links, and keep us updated.

[T_Gurrero]

Thanks in advance. I'll try it