Firmware set for an HP 15 laptop on the Compal LA-E791P mainboard, revision 1.0, delivered as a 5.47 MB RAR archive. Besides the main BIOS image it includes keyboard EC firmware for the KB9022D embedded controller, which handles power sequencing, keyboard and battery logic. LA-xxxxP numbering is the Compal pattern, so match the code silkscreened on the board. Use a programmer to flash the SPI BIOS chip, and note that the EC may need its own image, always backing up the original contents before writing anything.
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 →