Check if your BIOS supports F.46:
http://forum.notebookreview.com/threads/...es.595505/
dv6-1XXX
dv7-2XXX [IMG] F.46
Then search at the forum the link to the F.46 mod.
Mine is a dv7-1XXX with AMD, it supports F.49 and I found a mod at the repostory in the sticky posts at the top.