BIOS firmware dump for an Apple MacBook Pro A1297 built on logic board 820-2914-A, packed as a zip archive of about 4 MB. The name marks the image as OK, meaning it was reported working by the person who saved it. Technicians write such an image to the SPI boot ROM with a programmer like a CH341A or RT809H when a Mac shows no chime or is stuck on a corrupted firmware. Read and keep the original chip contents first, confirm the 820 number on the board, and check the image size against the flash chip capacity 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.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 12 Oct 2017 | Open file on RM Schematics |
| @abgm_manutencao_bios | 10 Jul 2019 | Open file on RM Schematics |
| @one5technology | 10 Nov 2020 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →