Hello i am new here....by the way i just needed help on how to restore my iphone 4. i tried all the ways by pwned dfu,tiny umbrella i am restoring to ios 4.1 but it keeps giving me errors like 3194,2005,3002,10,9 etc plzzzz help my iphone screen is black plzzz help me,and i really apreciate your help.thnx