Firmware image for Apple logic board 820-2936-B, made for an MX25L6406E flash chip, with the ME region cleaned according to the name. The MX25L6406E is a 64 Mbit (8 MB) Macronix SPI chip. A cleaned ME region is used to clear Management Engine related faults after a board swap or repair. Write it with an SPI programmer, after first reading and saving the original chip contents. Confirm the 820 number on the board and check the chip marking before flashing.
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.
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 →