Another boot ROM dump for the MacBook Pro A1278 from 2011, logic board 820-2936 rev B, this one in a 3.77 MB RAR archive. It can serve as an alternate source if a different copy of the same board firmware fails to boot. Technicians program it onto the SPI flash with a hardware programmer after saving the existing contents. Check the 820- number and revision on the board, verify that the extracted image size equals the flash capacity, and move the serial and system data over when the original is readable.
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 Jan 2021 | Open file on RM Schematics |
| @biositechyangiyer | 1 Feb 2021 | 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 →