A 16.0 MB binary firmware dump whose name gives only the label O21 and the capacity, with no device, brand or board number stated. The full size points to a complete image for a 128 Mbit SPI flash chip, as used on many modern laptop and desktop boards. Identify the target by inspecting strings inside the file with a hex viewer or a UEFI extraction tool before flashing. Make sure your chip is also 16 MB, back up the original with a programmer, and verify the write afterward.
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 @bioshub. 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 →