My Galaxy S5 updated to Android 5.0, lollipop, last night and now the blue tooth is not working properly with the car, a BMW 535 2013. The connection between the car and phone keeps dropping, both midcall and when resting, and the contacts also keep disappearing and re-appearing. It makes the phone un-usable in the car. I never had these issues with KittKatt. I have tried un-pairing and re-pairing the phone and car and the problem still exists.