Hi, I'm a newbie at PS3. Just bought a CECH-4201A w/12GB ram, added 1-TB Seagate SSDHD, which is formatted and recognized by PS3 OFW v.4.40. Rogero downgrade 3.55 is recognized as valid PS3UPDAT.PUP. Rogero notes say it won't work on OFW, only CFW. Will I brick my PS3 if I attempt to downgrade my OFW 4.40 to CFW 3.55, so as to finally upgrade to Rogero v4.46 v.1.01??