Im living in Thailand and brought my US iphone 4 here. . long story short. . my Thai carrier was attempting to fix my phone and updated me to 4.2.1 and I am no longer unlocked. . i understand there is no unlock for the iphone 4, 4.2.1 yet but am curious if I could by pass this emergency screen to use the ipod feature and some of the other none phone or data features. .or am I SOL and stuck with a cool looking paperweight?. . I dont have an AT&T sim here with me. . only my Thai sim. . thanks for any answers. . .