Firmware image for an Apple logic board 820-4924, an 8 MB binary marked in the name as a new 2021 output image, apparently a processed or rebuilt dump. Apple uses the 820-xxxx scheme for its logic board part numbers, so match it against the number printed on the board. The 8 MB size corresponds to a 64 Mbit SPI flash. Dump and keep the original chip contents before writing, since serial number and other machine-specific data stored in the original may be lost when a generic image is programmed.
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 →