A 32 MB BIOS binary for the EliteBook 840 G9 family, labelled as an MPM unlock image. MPM is the Manufacturing Programming Mode that HP boards use to lock or unlock writing of serial, product and other DMI data. An unlocked image lets those fields be rewritten after a board replacement. Flash it to a 32MB SPI chip with a programmer, after saving the original dump. The original holds unit-specific data that you may need to restore, so keep it safe.
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 @anztechnology. 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 →