Working BIOS for an HP laptop with Quanta board DA0P9KMB6C1, revision C, an 8 MB image reported as tested and compressed into a RAR of about 5.8 MB. Quanta prints DA0 numbers on its boards, and the last character pairs with a revision letter that should match yours. The 8 MB size fits a 64 Mbit SPI flash chip, programmed with a CH341A or similar tool. Dump the original chip before writing, since HP stores serial and product data there that may need restoring afterward.
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.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 11 Mar 2025 | Open file on RM Schematics |
| @Laptopbiossolutions | 13 Mar 2025 | Open file on RM Schematics |
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 →