Combined BIOS and EC firmware package for a board named C21_VC, revision 1 to 1.2, in a RAR archive of about 8.33 MB. The EC (embedded controller) image handles keyboard, battery charging and power-on logic, so both chips may need writing when a laptop shows no power or charging faults. No brand is given, so confirm the board code on the PCB. Read and save each original chip with a programmer before writing, and make sure each file matches its chip capacity.
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 →