Raw 8 MB firmware dump for an Apple logic board carrying the number 820-00165. The name gives no further details such as ME status or firmware version, so treat it as a plain chip image. It is meant to be written to the board SPI flash with a programmer such as a CH341A or RT809 when a Mac fails to boot because of damaged firmware. Read and save the original chip before erasing it, verify the board number on the PCB, and make sure the flash chip is 8 MB so the image fits.
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 @efibios. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →