EFI firmware dump for the 2011 MacBook Pro 13-inch, model A1278, logic board 820-2936 revision B, in a 3.99 MB ZIP. Apple numbers its logic boards with the 820- prefix, and the board number on the PCB should match before you flash. A dump like this is written to the SPI boot ROM with an external programmer to cure no-boot, fan or firmware-lock symptoms. Read the original chip first, since it holds the serial number and other machine data that may need transferring into the new image.
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 .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 →