Clean, working BIOS dump for the Apple MacBook Pro A1278 from 2010, in a 1.64 MB RAR. A clean image normally has machine-specific data reset, so it can be used to revive a board with corrupted firmware. Write it to the EFI SPI chip with a programmer after verifying the chip capacity matches the unpacked file. Read and save the original first, since serial number and system data may need to be copied back into the clean image.
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 @bios_laptopomi. 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 →