I'm using 5.1.1 jailbroken on iPhone 4s. I basically have it jailbroken for MMS on straight talk. I would rather use new features in iOS6 and wait for new jailbreak to come out. I'm completely new to this process and have no idea what I'm doing. I'd like to create a backup to return to if I wanna go back to 5.1.1 jailbroken. I've heard blob and SHSH mentioned and have no idea what that is? How do I do that. After that, to upgrade to 6, I need to restore and then upgrade, right? Thanks for help! Sorry I'm so green around this.