Hello here in the forum, has had a Ford Transit Custom for a week. The handler made a connection to my cell phone and it worked. My music from the cell phone was played and phone went too. Now I downloaded a Navi Ap, Navi and music went and it rang. Since then my cell phone no longer works with Sync. I tried to reconnect it. The cell phone is disconnected after a few seconds, shortly after detection. BT continues to function, from the cell phone comes the music , but Sync does not recognize a phone. Thus no emergency call assistant and no hands-free device. I updated the software of my mobile phone, brought Sync to factory condition, completely deleted my mobile phone and reinstalled again by backup, tried with my son’s mobile phone, there goes the part, compared all settings with those of my son, are identical, dealer first knows no advice. So, and now I don’t know any more and would be for a few Tips grateful Greetings Detlef