Working BIOS for the HP ProBook 459 G9 based on a 12th-generation Intel platform, reported as fully tested. No motherboard number is given in the name, so compare the board markings before flashing. The image is meant for direct SPI programming when the laptop fails to post or the firmware is damaged. Back up the original contents first so HP serial and product data can be restored. Verify that the file size matches the flash chip before writing it.
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 @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →