Firmware image for the Apple MacBook Pro 7,1 A1278, MC375LL, logic board 820-2936-B, packed as a 3.83 MB RAR. It is the standard dump rather than the ME-cleared version, useful for recovering a board with corrupted EFI flash that will not chime or boot. Apple's 820-xxxx numbering and its revision letter must match the PCB. Always back up the existing chip with a programmer, as it contains the unit's serial number, and confirm the image size fits the flash before writing.
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.
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 →