Tested BIOS for a TAICHI21 mainboard at revision 2.0, supplied as a 3.55 MB ZIP and reported to work. TAICHI21 is the board code of the ASUS Taichi 21. A verified image like this is used to revive a board with corrupted firmware by programming the SPI flash with a hardware programmer such as a CH341A. Make sure the printed revision matches 2.0, dump and keep the existing chip contents first, and confirm the file size equals the flash capacity before erasing and 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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →