Flash v10a, root with gingerbreak, install cwm, reboot in cwm recovery, restore...
Beware!!! Nova uses ext4 and stock firmware uses ext3.
That's all.
Cheers.
Sent from my LG-P970
so if i have nova rom and i want to restore a backup of original v10c stock, i have to install the basic cmw and do the restore form there? btw stock cmw reads the backups made by nova cmw?