Firmware archive for the Apple MacBook Pro Unibody A1297, logic board 820-2610 revision A. The RAR at 1.33 MB most likely holds an EFI/boot ROM image for the SPI flash on that board. Technicians use such a dump to reprogram a corrupted or locked boot ROM with an external programmer when the machine shows no chime or no video. Apple 820-xxxx numbers identify the logic board itself, so confirm the number silkscreened on the PCB, read and save the original chip contents first, and check the image size matches the flash part.
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 (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 11 Nov 2020 | Open file on RM Schematics |
| @biositechyangiyer | 2 Dec 2020 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | 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 →