BIOS dump for a Compal LA-7781P motherboard, project code AFS, as a 4 MB raw binary marked OK in the name. LA-xxxxP is Compal's board-numbering scheme, used for laptops of several brands, and the name does not say which one. The 4 MB size corresponds to a 32 Mbit SPI flash, and a separate 8 MB variant exists, so read the marking on your chip to choose the right one. Flash it with a CH341A or a similar programmer, after saving the existing chip contents.
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 @afsbiosfree. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →