Hi, I have a friend that is interested in turning their Blackra1n tethered jailbreak into a full blown Spirit Jailbreak. I did some research and found out 3.1.3 is no longer being signed by Apple. He currently has a 3rd Gen 8GB model and has 3.1.2. Is there anything he can do, or any other Jailbreaking methods around? I was thinking about telling him to backup his SHSH Blobs, but I didn't even fully understand what to do myself, and do not feel comfortable telling someone else to do something I myself don't even understand.