BIOS image for a Dell 2520 laptop on the DV15 MLK mainboard, Wistron board number 11280-1. The dump is a raw 8 MB binary, sized for an 8 MB (64 Mbit) SPI flash chip, and is meant to be written with an external programmer when the machine will not POST or the BIOS is corrupted. The five-digit number with a dash revision is the typical Wistron pattern, so check that 11280-1 is printed on the PCB. Back up the original chip first, since it carries the service tag and other system data.
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 @laptop_bios_schematic. 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 →