Z5 Premium Dual -- phone died and won't charge after update

[Murphy0X]

I have a Sony Z5 Premium Dual. #

I received a sony system software update notification this afternoon.  I clicked yes, and the phone rebooted and started the update.  At this point I figured it would take awhile and put the phone back in my pocket and continued about my day.  About an hour later I get home and take my phone out of my pocket and it won't turn on.  When I plug the phone in I get a flashing red light in the corner which tells me the phone is out of power.  After leaving it plugged into the wall for a couple hours I still have the same flashing red light and it still won't power on.  I've tried holding power + volume up for a hard reset but that has no effect.  

Has anyone else had this same experience or know how to resolve it?

-Mike

[Uliwooly]

@Murphy0X

Highly doubt it was the update but you could try this

connect the phone to a wall charger > press and hold power & volume up for 10 seconds > let it charge for 2-3 hours > try to turn it on

[Murphy0X]

So I plugged the phone in and hel the power and volume up gbuttons for about thirty seconds. The blinking red light stopped blinking.  I did not get any vibration though.  After that the red light never came on again.  The phone still won't power on.  Any other suggestions?

-mike