EFI firmware dump for the 11-inch MacBook Air 2012, model A1465, logic board 820-3208-A, with 1.7 noted in the name, probably a version. Apple marks its logic boards with 820- numbers on the PCB, so confirm the number before flashing. The 4.41 MB RAR is for programming the SPI ROM with an external programmer to fix a board that will not chime or boot, or is firmware-locked. Read the original chip first, since it contains the serial number and other system-unique data.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 20 Dec 2018 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 28 Oct 2019 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →