BIOS image for board PLAC_CSAC, the UMA variant using integrated graphics, revision 2.1, packed as a 1.43 MB RAR. No brand is named, so identify the laptop from the board label before use. UMA builds differ from discrete-GPU builds, so firmware from one should not be flashed onto the other. Write the image to the SPI flash with an external programmer after saving a backup of the existing chip, and check the file size matches the 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 →