As long as the Matt Card is plugged in (it has to stay plugged in.) the ROM on the Matt Card will be the one that is used.
It plugs into a tiny connector on the motherboard. The Matt Card is the alternative to swapping the EFI ROM chip on your motherboard.BIOS EFI FIRMWARE CHIP - APPLE MACBOOK PRO 15' A1707 LOGIC BOARD - 820-00928-A. IC CHIP - ISL9239 9239C0 U7000 for Macbook Pro A1706 A1708 / Buck Controller BGA.También elimina y desbloquea las contraseñas de Apple Mac (2010-2017) EFI BIOS al instante.
