BIOS binary labelled 4540s, 8.00 MB in size, likely meaning a ProBook 4540s, though the name itself gives no brand, board number or version. The 8 MB size corresponds to a 64 Mbit SPI flash chip, which is what the dump must be written to. Technicians reflash such images with an external programmer to recover boards that fail to POST after a corrupt update. Before use, confirm the model and motherboard number on the PCB and save the original chip content, since it may contain serial and activation 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 @biosfilebins. 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 →