ZIP archive containing BIOS firmware for the ASUS S551LB laptop, around 3.27 MB compressed. The file name carries only the model, with no version or board revision noted. Technicians use such an image to restore a board after firmware corruption by programming the SPI flash directly with a tool like CH341A or RT809. Make sure the extracted file size matches the chip, keep a backup of the original dump for its serial and MAC data, and confirm the board model printed on the PCB matches the image.
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 →