Ender 3 pro won’t auto home, move motors and is making weird noise

  • Need help with my new Ender 3 pro. Assembled it today and when I tried to auto home It just comes up with and error and needs a reset. Can’t move any of the motors through the menus either. Screen is also making a ringing noise. I have checked and re-seated cables about 20 times. Is it just a defective unit?
    Please help!

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