Return it to the store for a new unit.
The customer service took out a new unit of My Book and tested each of the component with the current My Book that I have. We tested the USB3.0 cable and then the power adapter. The problem was with the power adapter it was not sending enough power to the spin the disk.
The quality of the component used is not good. All you need is a bad power adapter and the My Book is screwed.
