Hey everyone. I have an iPhone 3GS on JB 3.1.2. One of the updates for Cydia last night hosed my phone and it wont boot past the Apple logo. What should I do? I do have my SHSH stored on Saurik's server. Can I restore to official 3.1.3 and then downgrade to 3.1.2 then JB again using Spirit somehow or am I screwed?