1. Many people think that after turning on Bluetooth, the mobile phone will automatically search for Bluetooth and connect to it successfully, but there is no such thing. For the phone to search for Bluetooth, Bluetooth must enter a special state: the pairing state.

2. The specific operation steps are as follows:
1. Confirm that the Bluetooth is turned off: press and hold the multi-function button for 2-3 seconds, the bluetooth indicator red light flashes quickly about 3 times, that is, it is turned off.
2. Bluetooth enters the pairing state: Then long press the multi-function button for 7-8 seconds, the Bluetooth enters the pairing state, and the indicator light red and blue alternately flash rapidly or the indicator light is always on.

3. After the Bluetooth successfully enters the pairing state, the next step is to enter the operation of the mobile phone:
1. Turn on the Bluetooth function of the mobile phone and search for the Bluetooth model.
2. Connect the mobile phone with Bluetooth, if prompted to enter the pin code, usually 0000 or 12.