So i bought a used PS3 with cfw. The seller told me that the cfw is Habib 4.70 and mmCM 4.76. How can i find out on which CFW i really am? Should i update it because there is some better cfw? Heavy Rain was included as a disc and on a HDD but it is not detected by mmCM. I can only start it with the file manager -> eboot. How can i fix this? Its just the game folder and not an ISO.