EFI BIOS firmware Matt Card MacBook Air 13" 2012 emc2559 820-3209

Description

Please note that we sell these Matt cards for almost all models of MacBook Air.
But (!) you do need a specific Matt card for each specific model of MacBook.
This Matt card is only for the
MacBook Air 13 inch (Mid 2012) A1466 emc2559
Machine ID: MacBookAir5,2
To mount the Matt card you have to open up the Mac. You only have to remove the bottom cover, but you probably will need a funny pentalobe screwdriver to get in.
We can sell you the screwdriver, but it is not included in this price.
The Matt card has to remain inside the Mac. It is designed to to be very small and fit perfectly. Just screw the cover back on the Mac and leave the Matt card inside.
EFI BIOS firmware chip for Apple MacBook Air
Brand new programmed and verified BIOS Chip (same thing as EFI chip).
This one comes mounted on a little board (The Matt Card).
Rather than soldering out the old chip and soldering in the new chip, with this solution you only have to plug in this board. You don't even have to take the motherboard out of the case!
While plugged in it overrides the old chip on the mother board.
Click here for some general explanation on YOUTUBE