After connecting the Bluetooth earphone, turning on the Contact sharing switch in the Bluetooth earphone settings does not respond.
Solution:
Contact sharing is the content of the Bluetooth protocol, which is mainly used for the transmission between the phone and the car Bluetooth so that the car Bluetooth can display the phone contact information of the phone. In the scenario where the phone is connected to the Bluetooth earphone, since the earphone does not have a display function, this protocol is not applicable, and the function of the Bluetooth earphone is not affected by turning it on or off.
