Yesterday I tried to update my 3120classic firmware. Unfortunately while the update was running my pc turned off due to power fail. When I unplug my phone from the usb I saw tha nothing worked. No buttons were operating and all I could see was a blank screen. I think that the device has stayed without firmware.Can it be fixed?? And if yes is there anything I can do on my own?? How much will approx. cost me to repair it at a nokia center???

thanks in advance