How To Fix My Ps 4 Controller Not Connecting. If the battery is low, it might not have enough power to establish a connection. Hit the PS Button on the controller to hopefully turn on and pair your controller in one process.
Use a microfiber cloth to slightly dampen with the solution.
With a USB cable plugged into your controller, gently prod the connector.
If it feels loose, or it comes out easily, then there may be a problem. If an update is available, download it and test if your controller connects. Hopefully, the controller will be detected and work as expected.