BIOS plus EC image for the HP 250 G4 notebook, ABQ52 platform, on the Compal LA-C811P mainboard, labelled BID080CD, an identifier separating it from other dumps for the same board. Because the embedded controller firmware is included, it can fix keyboard, charging or power-on issues caused by a corrupted EC area. Write it with a CH341A or similar programmer. Keep a backup of the existing chip, check that the variant matches yours, and confirm the file length matches the installed flash.
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 →