Just by another key fob

all of the internal boards are the same.

YOU MUST TAKE THE TRANSPONDER CHIP (small black chip located at the nose of the fob) and insert it into your new fob

get both a new empty FOB with key blank from EBay and an existing fob for the circuit board.

This is is the easiest way to correct it

there are several threads on this forum that explain how to Sync the fob to the car.

DONT FORGET TO SWAP THE CHIP