User Manual BMW 2020 BMW X3 M

- There are too many Bluetooth devices con‐ nected to the mobile phone or vehicle. In the vehicle, delete Bluetooth connections with other devices. Delete all known Bluetooth connections from the device list on the mobile phone and start a new device search.
- The mobile phone is in power-save mode or has only a limited remaining battery life.

- Adjust the strength of the Bluetooth signal on the mobile phone, depending on the mobile phone.
- Insert the mobile phone into the wireless charging tray.
- Adjust the volume of the microphone and loudspeakers separately in the sound set‐tings.

- Transmission of the phone book entries is not yet complete.
- It is possible that only the phone book entries of the mobile phone or the SIM card are transmitted.
- It may not be possible to display phone book entries with special characters.
- It may not be possible to transmit contacts from social networks.
- The number of phone book entries to be stored is too high.
- Data volume of the contact too large, for in‐stance due to stored information such as notes. Reduce the data volume of the contact.
- A mobile phone can only be connected as audio source or as telephone.

The mobile phone may not be properly con‐figured, for instance as Bluetooth audio de‐vice.

- The applications on the mobile phone do not function anymore. Switch the mobile phone off and on again.
- Too high or too low ambient temperature for mobile phone operation.