There are a few things you can do in order to troubleshoot your PlayStation 4. The first is to check the power cord and plug it in to an outlet. If the PlayStation 4 doesn’t turn on, it may be because there is something wrong with the cord or outlet. If that’s not the problem, then you can try changing the power supply or battery. If either of those solutions don’t work, then you may need to take your PlayStation 4 into a store or service center.