Fix Ps 4 Controller Joystick. These guides provide support for the following DualShock Controllers. On the back of your controller, you will find a tiny hole - the reset button is inside this hole.
Check the model number on the back of your controller.
Once it's shut down, connect the problematic controller to your console with a USB cable.
All that is left is to clean off the old flux with some isopropyl alcohol. Make sure it is properly seated and that all the contacts line up with the holes in the circuit board. Try resetting it, it works for me i just gotta do it every now and then.