i have a iphone that was 2.1 and was upgrading to 2.2.1 but forgot to relock the phone before upgrading. so now the phone unlocked and upgraded but it wont go past the plug into itunes screen and says sim not recognized but i get texts and phone calls, and when no sim card is insert and plugging into itunes says iphone needs sim card or sim pin. any ideas? did i brick it?