Jetway MIH61M-DU3 BIOS packaged as a 1.53 MB ZIP archive, with A09 in the name, most likely a BIOS version label. The name does not state the flash chip or whether the image is a raw dump or a vendor update file, so check the contents after extracting. Such files are used to restore a board whose firmware is corrupted, often by writing the SPI chip with an external programmer. Read and save the original chip first and make sure the image size equals the chip capacity.
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 →