BIOS and EC firmware for the HP 250 G4 notebook, board ABQ52 with the Compal number LA-C811P, packed in a 16.2 MB RAR archive. Compal uses LA-xxxxP codes for the boards it builds for HP and other brands, with ABQ52 being the project name. The main image goes into the SPI flash chip using a programmer, while the EC file serves the embedded controller. Back up the original flash contents before writing anything, and make sure each image length corresponds exactly to the capacity of the chip on the board.
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 →