source to unlock it and doesnt turn? i am on tmobile and i have a iphone so i tried unlocking it with the blackrain unlock source from cydia. it froze and now it just stays on the block screen with the apple and doesnt connect to itunes or anything. please help me fix it. i had the 3.1.3 firmware and i think that source was only for 3.1.2 how do i fix it?