Like hell you will. Blind flash the GPU ans stop listening to this guy.
These are the correct steps for a blind flash. I highly doubt you did anything shorting pins on the EEPROM. You can straight up hold power to ground on the EEPROM and it wont do anything to a corrupt BIOS.
you wanna read the thread ? again buddy
already confirmed that its bricked beyond all normal methods of recovery
dead or not you short the wrong set of pins you have a good chance of wreaking it is a last resort and its not something for someone with out a good bit of experience should attempt you can hold power to ground because its A GROUND you put power to one of the serial pins and good bye sally .... usually the reason for the stern tone was to make him STOP because he was playing with forces he didn't understand .... that usually ends badly