@dapaze Hello!
I have had a similar problem with the PS4 controller.
I'll explain how I have done it.
I enter the retropie menu and choose bluetooth.
I choose pair bluetoth
I disconnect the usb cable from the controller, the controller turns off, I press the Share button and without releasing I press the PS button until the light starts flashing rapidly.
On the screen you will see "connect the cable" do not do it, wait for the screen to pass and detect the controller.
Then you will see the controller and all available bluetooth devices.
Once chosen, my controller was not working, I used the keyboard to go back to Retropie, there you restart the emulator and then I had my bluetooth controller available, it is like a new controller, you have to adjust the buttons.
