Phaeton GP2 (mfd2) and Samsung’s S3

Hi, I’m actually technically somewhat savvy, I thought at least! Unfortunately, I’m not able to connect my 12/2007 Phaeton with MFD2 via rsap to my phone Samsung SIII (Galaxy 9300). I had Android 4.0 on it at the beginning, then update all updates to version 4.1.2 until today. Actually, the Samsung SIII comes with rsap from home – so it should have worked. But when pairing always the same thing. The two find themselves, I give the code e in and confirm the access permission on the mobile phone, after that the mobile phone without SIM but on the display only the message connection does not appear after approx. 1 min! After that the mobile phone gets the SIM back! I then rooted my mobile phone and played rsap for Android. Also with that no connection is made. The same with the S3 mini my wife! Do I have to take this now personally or can not actually do so. Maybe someone here with the same constellation has follow and it is due to my BT control unit?!?!? I am grateful for every suggestion!