I have updated my iphone 4 to 4.3.1 An error occured - maybe 1031? Don't know anymore. There is a picture on the iphone with a white usb cable and an arrow to a round blue itunes logo iTunes does not recognize if the iphone is connected to the computer anymore. All I can do with the iphone is to shut it off and on, when booting the grey apple logo appears, then the connecting picture. What can I do?