Help, my coworker helped me unlock my iphone 3G for tmobile but he downloaded the new iTunes 10. Now the phone is constantly stuck on the apple logo, then he put it in recovery mode. I'd like to downgrade from iso 4.0.1 to 3.1.3. I've tried to reformat the thing but it keeps giving me an error and now stuck on the recovery mode even after I hold down the power key and the home key for force shut down. Anyone else run into this problem and has a solution for it? Please please please help.