Got it: Do one of the following to put your device in USB update mode: If your device is frozen: Press and hold the power button while pressing the center button 10 times. This puts the device in a powered-down state with a black screen. Then press and hold the power and volume up buttons until you see the large USB icon. Press and hold the power button until the buttons appear and tap Shut Down. After shutdown completes, press and hold the power and volume up buttons until you see the large USB icon.