Firmware archive for the Apple A1707 MacBook Pro, matching logic board 820-00281 at revision A. The 4.49 MB RAR file most likely holds the EFI ROM dump in compressed form. The 820-xxxxx code is Apple's own logic board numbering, so compare it with the board before writing. Use an SPI programmer with a suitable clip or remove the chip, save the original contents first, and confirm the unpacked image size matches the flash capacity.
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 @fixtronix. 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 | |
|---|---|---|
| @fixtronix | 23 Feb 2025 | Open file on RM Schematics |
| @cidschematicandboardviewofficial | 23 Feb 2025 | 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 →