BIOS / EFI firmware dump for an Apple MacBook Pro 7,1, model A1278, logic board 820-2936-B, order number MC375LL, in a RAR archive. Apple identifies its logic boards with 820-xxxx numbers followed by a revision letter. This dump is used to reprogram the SPI boot ROM with a programmer when a Mac will not chime or boot. Save the original ROM before writing, since it holds the machine serial data. Confirm the board number and that the image size matches the flash chip.
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 →