Firmware image for the Apple MacBook Pro A1398 Retina, logic board 820-3662 in revision 03, stored as a bin file inside a zip of roughly 5 MB. Apple 820-prefixed numbers identify the logic board itself, so the number silkscreened on the PCB must match before you flash. The dump is meant for the SPI boot ROM and is typically written with an external programmer after removing or clipping the chip. Save a backup of the existing contents, as serial and system data live in the original image, and verify the file size equals the chip 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 @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 →