Binary firmware image named vos1520, likely for a Dell Vostro 1520 laptop, 2.00 MB in size, with no board number or revision given. A 2 MB image matches a 16 Mbit SPI flash chip, so check the installed chip marking before programming. Technicians use dumps like this to revive notebooks with a corrupted BIOS, flashing with a CH341A or similar tool. Read the original chip twice and compare, save that backup, then write and verify the new 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 @biosbigarchives. 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 →