EliteBook 840 firmware labelled 16, a 2.00 MB raw image matching a 16-Mbit SPI part, with no extension. The name says nothing about board number, generation or firmware version. On some HP boards such a small image belongs to a secondary flash chip next to the main BIOS, so check which device you are working on. Read the existing chip first with your programmer, confirm the capacity and markings, then write and verify the 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 @biosfilebins. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →