As soon as the MBU-2000 with a mobile device connects, the Green LED (display of the phone book-upload) flashes. The LED is flashing every time when connecting using a mobile phone. How the LED flashes, the MBU-2000 determines whether the phone phonebook sync is compatible and that automatically download phone book contacts. When this process is complete, the flashing green LED is a solid green LED.
To new contacts in the transfer Mercedes handsfree, audio system, press the phonebook upload/sync button once to activate it. A message on the LCD "Tel Error" appears for a few seconds while contacts are sent. If the display of "Service" or "Speakerphone" shows again, the user can verify that the contacts in the system memory are.
But if the mobile device does not phone book sync, the Green LED blinks a few times and then disappears. If so, get this please under subsection B for an alternative method to upload contacts.
