Tested BIOS dump for the HP Pavilion dv6, tied to board reference 11A67-2 with PCB code 48.4RH11.021, reported as working. The archive is a RAR of roughly 4 MB. The 48.4xxxx style code is commonly found on boards made by Wistron for HP. Use it to reprogram the SPI flash with an external programmer when the laptop shows no display or loops on power. Match the board code silkscreened on the PCB before flashing, and always keep a backup of the original chip in case serial or DMI data must be restored.
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 →