There are a few reasons why your PlayStation 4 controller might be blinking white. One reason could be that the controller is not in use. If you have never used your PlayStation 4 before, it is best to unplug it from the wall and turn it off for a few minutes so that you can get used to the new interface. If your controller has been unused for a while, it might also be because there is something wrong with it. If you have ever had trouble connecting your controller to your PlayStation 4, then you might want to check out our guide on how to fix a PlayStation 4 controller.