HP firmware dump of 1 MB, copy number three in a set marked as fitting the 6720 or the 550 model, which shared similar hardware. The name carries nothing about BIOS revision, region or whether it was verified working. Repair shops use these raw images to reprogram an 8 Mbit SPI chip with a CH341A or similar programmer when the machine powers on with no display. Keep a backup of the existing contents and verify the read back after writing, as size mismatches will not fit the chip.
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 @biosfilebins. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →