How To Fix Ps 4 Controller Not Connecting To Phone. This is a swift and easy fix; all you need is a USB cable. Select Sound/Devices > Turn off Device, then choose your controller from the list.
If this is the first time you're pairing your controller, it will be listed underneath Other Devices. If the battery is low, it might not have enough power to establish a connection. If the controller is paired to your iPhone but not on, press the PS button.
Potential causes include a general firmware malfunction, a faulty battery, a defective charging cable, or a defective controller charging port.
Check Controller Charge: Ensure that your controller has sufficient charge.
Select Sound/Devices > Turn off Device, then choose your controller from the list. Before jumping to a console restart and losing progress on your game, try resyncing your controller. The controller will connect, and the light bar may change colors.