BIOS dump labelled S551LA, an ASUS VivoBook notebook model, packed in a 3.21 MB ZIP archive with no version or board revision stated in the name. A sibling S551LB file exists, and the two variants differ in configuration, so pick the one that matches the machine being repaired. The image is meant for reprogramming the flash chip with an external SPI programmer when the board will not boot. Save the original contents before writing and check that the file size corresponds to the chip fitted.
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 →