BIOS firmware for the ASUS VivoMini VC66 mini PC, board revision 1.03, packed in a 6.93 MB RAR archive. Small desktops like this use an SPI flash chip that can be read and rewritten with a programmer such as CH341A or RT809F when the unit no longer posts. Extract the archive and check whether it holds a raw image or an updater. Save the original chip contents first, confirm revision 1.03 on the board, and make sure the image size matches the chip before writing.
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 →