My Book Essential 1 TB Does not work

I’ve had trouble replacing it a while back through the internet process. It was kind of complicated for me with all these options. So iI stopped. I have a solid white light, it is USB 3.0 compatible cord. When I plug it in the pc nothing happens. What does this mean? Is the problem the USB , the External Drive or both?

Are you able to test the unit on a different computer? whit a different USB cable?

Also make sure that you are connecting the power cable directly to the wall outlet. It might be a power issue even if the light is steady.