Depending on the corresponding order you and your friends press the PS button in the middle of your PS4 DualShock controller, ...
then press the controller reset button, plug in the USB cable, turn the PS4 on, and once the blue light flashes, press the PS button on the controller. If neither of those two methods resurrect ...
The best PS4 controllers are able to provide extra functionality on the console for those looking for an enhanced play experience. Sony's previous-generation system might be well over a decade old ...