BIOS EFI FIRMWARE CHIP APPLE A1418 IMAC 21.5" LOGIC BOARD NUMBER: 820-3588-A

The BIOS chip needs to be soldered onto the board. to FIX a corrupt (bricked) EFI firmware BIOS Chip. to remove EFI firmware password. This item will not remove the OS password. You will need a new chip for the following purposes.

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