HP laptop firmware package for Quanta board DAG31AMB6D0, revision D, containing both the system BIOS and the keyboard / EC (KBEC) firmware, reported as working. At 25.8 MB the RAR likely holds several images. Quanta's DA-prefixed numbering is printed on the PCB near the edge; match it and the revision before flashing. Write the BIOS to the SPI chip and the KBEC image to the EC flash with a programmer, backing up both original chips first, since a wrong EC image can leave the machine dead.
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 →