Sorry for posting a question that is probably retarded to a lot of you guys, but I have not got a clue when it comes to hacking so apologies in advance!... From the many posts and threads, it seems that there is no easy way to unlock then jailbreak a 3G handset already on OS 3.1.3 with BB 05.12.01, but can i jailbreak my phone without rolling it back to 3.1.2 because it is already unlocked from O2 (it was unlocked via the online web form on the O2 website in December 09)? I currently use a Vodafone sim. If I have no choice but to roll the OS back to 3.1.2, is there an idiots guide to do the rollback and jailbreak? Will a rollback of the OS affect my unlocked handset (that was previously locked to O2)? I want to keep my Voda sim. Thanks (and apologies if this has been asked before).