Hello All , On 2/4/2013 , I updated my iPhone 4s from iOS 5.1.1 Jailbroken ? Unlocked to iOS 6.1 and now I can't get past the Activation Screen . I updated it by iTunes and I pressed Shift and restore and I browsed the firmware I downloaded this morning. Now I'm stuck on the Activation . I tried installing iOS 6.1 on iTunes but I keep getting iTunes Server Unavailable or cannot be contacted . If someone can help me with this it will be greatly appreciated. Thank You.