Apple EFI firmware for logic board 820-2915 revision B, stored as an 8.00 MB .bin file. The name lists only the board number and revision, with no EMC or tested status. It is used to rewrite the SPI flash chip with a programmer such as a CH341A or RT809H when a board will not boot. Confirm the revision printed on the PCB matches, save the original chip read beforehand, and check 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 →