hi so i describe what i did. i put the 4.0 gm onto my iphone with itunes then i jailbreaked it with redsn0w and now i have this connect to itunes screen ant i dont know what to do. Itunes say that i must activate my sim(iphone is simlocked) and the same is on the iphone. what should i do now? can i downgrade?? I need my phone and i can not do anything! can someone say step by step how to make it right?