EFI firmware dump for the Apple MacBook Pro A1229, a 17-inch model, code name M76, with 051-7261 schematic reference and logic board 820-2132-A. Apple numbers its logic boards 820-xxxx with a letter revision, which should match the silkscreen. The image is written to the board's SPI flash with a programmer to recover a machine that chimes poorly or will not boot. Read and keep the original first, because it holds the serial number and model data unique to that unit.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 18 Dec 2018 | 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 →