EFI firmware read-out for Apple board 820-4652 with EMC number 2806, provided as an 8.00 MB raw binary. The outimage label points to a direct programmer dump of the flash chip. Technicians write such images to the SPI flash with a CH341A, RT809H or similar tool to revive boards with damaged firmware. Match the board number printed on the logic board, save the original chip contents first, and be prepared to transfer serial number and system data from the old dump.
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 →