Keyboard controller firmware for the Compal LA-8862P board, provided as a 5.63 MB .hex file that accompanies the main BIOS from the same set. That size suggests a text-based hex representation, so the real binary is much smaller, and it may need converting depending on your programmer software. EC or KBC code controls power-on, charging, fans and the keyboard, and reflashing it can cure dead-board symptoms. Verify the board number and read out the original controller contents before writing 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 @bios_laptop. 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 →