Need help please! Serious noob here. Tried to jailbreak/unlock, ended up with display "enter valid sim to activate account". I entered sim but says "no service" and "connect to itunes w/slide for emergency" display showing. Itunes then prompts me to activate phone using att my current carrier. Tried to restore to factory settings when prompted but phone was not restored, saying error 1601,and 20 but now is updated to 3.1. I read that 1st gen can be downgraded but everytime i try i get "itunes unable to restore iphone error 1601,20" please help if u can, i greatly appreciate any help u can give