If something isn't working correctly, first make sure that RockSTAR powered. If the screen is blank and you're not sure about it's status, leave the unit to charge overnight.
Hardware reset the device by pressing on the red Alert button and the Down button at the same time.
Continue pressing the buttons as a counter appears, counts down to three, stops and resets your RockSTAR. When the RockSTAR resets you can depress the buttons.
Updated over 5 years ago