Hello,
The work was already done. But this bios (sp48125, F.43 version for DV6000 and DV9000) is also nowhhitelisted.
You can find it
name : HP Pavilion DV9408ca F.43 MOD_NWL.rar
directory: http://www.bios-mods.com/BIOS/index.php?dir=Whitelists/&sort=date&order=asc