BIOS ROM file whose name suggests D620 with version A10, though the name states no brand, so the target device should be confirmed independently. The image is 1 MB, matching an 8 Mbit flash part. A .rom file like this may be a vendor update image rather than a raw chip dump, and these are not always interchangeable, so inspect its structure with a hex editor before writing. Back up the existing chip, compare capacities, and verify after programming with an external SPI programmer.
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.
How to open a .rom file
A BIOS image as shipped by the vendor (commonly AMI) — often the BIOS region only, without descriptor or ME.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →