Lenovo S2 BIOS for the Quanta board DA0PS9MB8E0, revision E, labelled fully working. Quanta numbers its boards with a DA0 prefix, and the revision letter on the PCB should match this dump. Extract it and program the SPI flash with an external programmer to fix a board with corrupted firmware. Read and save the original chip first, and compare the extracted image size with the chip capacity so the image fits correctly.
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 →