From my experience of this issue and having had the dealer update the software on my car. The solution for me is to start the car before connecting the phone to the usb cable, if I plug the phone in without starting the car it fails several times, it even completely freezes the infotainment screen and its just a black screen. I have had it fail maybe once or twice since starting the car then plugging the car in and thats due to the phone being locked when I have plugged it in, as soon as I unlock it and try to reconnect it connects fine. Give it a try if you havent!