I jailbroke my phone a while ago with spirit. I'm still on 3.1.2 with baseband 5.11.07. I need to update to get some of the new apps on my phone, however I want to keep the jailbreak. What's the best way to go about this? Snowbreeze combined with Greenpoison is what I was going to try, but I'm stil on 3.1.2, not sure if that would work. Thanks in advance.