BIOS image with the name X55AF and the numeric extension .413, 8.00 MB in size, a naming style often used for ASUS update files where the extension is the version number, though no brand is given here. Treat 413 as a probable version and X55AF as the model hint. The size fits a 64 Mbit SPI chip. Verify the board before use, keep a dump of the original chip, and note that a vendor update file may lack serial data present in a raw chip read.
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 @bios_laptop. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →