BIOS dump for the Apple MacBook Air A1466 with logic board 820-00165-02, marked as the 2015 model, provided as a 4.30 MB RAR. Apple 820 numbers identify the logic board and the suffix gives its revision. Mac firmware dumps hold serial and network data, so a donor image may need these values edited to suit the machine. Technicians program it onto the SPI chip to solve stuck boot screens or firmware lock issues. Confirm the 820 number on the board, read and keep the original chip, and match the image to chip size.
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 @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →