If you’re experiencing problems with your PlayStation 4 controller, there’s a good chance that the light is blinking blue. This indicates that there is a problem with the controller’s Bluetooth connection, and it can be fixed by following these steps:

  1. Turn off your PS4 and then turn it back on.
  2. Press and hold the “Power” button on your PS4 for about two seconds until the console goes into power-saving mode.
  3. Release the “Power” button and then press and hold the “Bluetooth” button on your controller for about two seconds until you see a blue light start to blink.
  4. Keep holding down the “Bluetooth” button until you see a green light start to blink, which means your controller has been successfully connected to your PS4. ..