I've just acquired my first smart(ish) phone, a Samsung S4 mini. It pairs OK as described above, and will sync my phone book initially. However, if I leave that screen and try again later in the same trip, it says no entries exist and the phone book cannot be loaded. The only way to get it to reload is to break the connection, either by switching off Bluetooth in the phone, or in the car, and then starting again. Is this another devious safety device?