BIOS package for the HP Pavilion dv6550ec built on the Quanta DA0AT1MB8F1 mainboard, the AT1 platform, compressed into a 619 KB ZIP. The small size suggests an older chip, so confirm the image length against the flash capacity before programming. Quanta uses the DA0 prefix for its board numbers, and the same board serves several dv6000-series variants. Read out and keep the original chip contents, then write the image with an external programmer if the board fails to start.
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 .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →