Hi guys. So i have an iPhone 3GS, and it was jailbroken on 3.0 about a week ago. I was having problems, so I saved the EUCID thing on cydia. then i upgraded to 3.1. So the jailbreak came out, and I want to jailbreak it. It said i had to be on 3.0. So when i tried to downgrade, it didn't work. So i can't figure out how to get to 3.0 again. I tried the downgrade method in which you added 184.108.40.206 gs.apple.com to you host file. It still didn't work. =( any help?