I downloaded iphone os 4 from demonoid.com and followed the directions online and installed it to my iphone, but i am not a registered developer, so when the restore was complete and i connected my my iphone itunes just says we're unable to complete activation. this device is not registered as part of the iphone developer program. if you are a memeber plese register your divice in the iphone developer program portal. there is nothing that lets me start my iphone from scratch. and my ipone just says slide for emergency. What should i do? this isnt even my iphone. its my dad and he asked my to install 4.0 on it. is there a way to restore from a backup?