A BIOS / firmware dump for Apple hardware (board 820-01061). Shared as “APPLE_IMAC_A1418_EMC_3069_mid_2017_820_01061_A_WORKING_BIOS_100%.BIN” — a .bin file, 8.00 MB.
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 @ShareMan_Electronic_Files. 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.
CH341A + NeoProgrammer / AsProgrammerflashromRT809F / RT809HTL866II / T48UEFITool (to inspect)HxD (hex editor)
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →