1, due to the instability of electronic equipment. Please turn off some electrical equipment in the car before trying to reconnect.

2. Car Bluetooth sometimes fails to connect because no call audio is selected. It is recommended to turn on the Bluetooth stereo of the mobile phone.

3. Due to the compatibility problem of Bluetooth devices, it is recommended to delete the pairing and reconnect.

4. The mobile phone system has not been updated to the applicable version.

5. There are connection records of other devices in the Bluetooth of the mobile phone. It is suggested to delete the original connected Bluetooth device.

6. Hardware failure, whether it is the problem of audio Bluetooth module or the problem of mobile phone Bluetooth function, can not be successfully connected.