Cause: Wrong connection mode;
Bluetooth headset does not enter pairing status;
No device is visible when the phone is not turned on;
The password entered is incorrect.
Step: Turn on the Bluetooth function of the phone, search the Bluetooth headset status, and see any device;
To turn off the Bluetooth headset, long press the switch button of the Bluetooth headset;
Release when the blue light and red light of the Bluetooth headset flicker alternately;
At this time, the Bluetooth headset and mobile phone will enter matching status;
After the Bluetooth headset information is displayed on the phone, click OK to connect.