1. Update? choose your regon for the game your trying to backup(BLUS is USA), download it/flash to usb/then flash to ps3 using your "install packages folder"
2. Download multimanager 2.1I and when you launch game that manager will automatically prompt you to change from FW3.50 to FW 3.41, changing your games SFO to 3.41 (if this doesn't work download SFO-edit v1 and search files and manually change SFO firmware
3. download Hexed30F to edit .hex files. I recommend downloading ComgeniesAwsomeFileManager, flash id to usb open in "install pkg folder" on ps3 like OPM. Yeah A LOT of crap huh?
this is for assasins creed but is a foundation for all new titles FW hack.
If you want my advice on jailbreaking combos? I use Blackcat board, Psgrooves v4, Hermes v4b payload, and a ComgeniesAwsomeFileManager, I use three different Backup manager at the same time Multimanager v1.09 w/covers, OPM v2.1I, and Gaia... And I have yet to have any trouble accomplishing any task! Hope this helps and GOOD LUCK