I tried to upgrade to a new firmware. THe battery was full and the phone suddenly went dead. I cant even power on the phone. Please advise what is the solution

I tried to upgrade to a new firmware. THe battery was full and the phone suddenly went dead. I cant even power on the phone. Please advise what is the solution

You'll need to get it flashed at a NSC

I tried to upgrade to a new firmware. THe battery was full and the phone suddenly went dead. I cant even power on the phone. Please advise what is the solution

I think you also had to attach charger while flashing it.
Even if problem happens while flashing - that Nokia Software Updater offers to take the battery off and disconnect charger, then switch them on again and press a power on button for several seconds. And this works. I had cable problem while flashing - followed that instruction and it re-started uploading firmware to phone and everything went OK.