Should be used to repair a corrupted EFI firmware BIOS chip. Should be used to unlock EFI firmware BIOS password (It doesn't unlock the OS password). Chip must be soldered on the logic board (requires soldering skills).
Simple process to fix a bricked motherboard, the bios software is upgraded to the latest release. Scary bit is warming up the solder which holds the chip in, once you overcome your fear you are 90 % there.