BIOS firmware for the ASUS Transformer Book T100TAM tablet, with T100TANF1203 in the name, which appears to denote a T100TA-series BIOS build, supplied as a 3.54 MB ZIP. A dump like this is used to reprogram the SPI flash on a unit stuck at a black screen or failing to boot after a bad update. Read and save the existing chip before writing with your programmer, and make sure the image size matches the flash capacity, since a mismatched image will not fit or boot.
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 →