The Bluetooth specification uses microwave frequency band to work. The transmission rate is 1M bytes per second, and the maximum transmission distance is 10 meters. By increasing the transmission power, it can reach 100 meters. Bluetooth technology is open all over the world and has good compatibility worldwide. The whole world can be connected by low-cost invisible Bluetooth network. What if the Bluetooth headset cannot connect to the mobile phone? Let's take a look at the relevant tutorials!

What to do if the Bluetooth headset cannot connect to the mobile phone

1. Before using the Bluetooth headset, make sure that the device is compatible with it. This can generally be found in the manual.

2. Make sure that the phone is turned on, the headset is not connected, and the Bluetooth headset is turned off.

3. If the Bluetooth headset has not been paired with any device, the direct power on will enter the pairing mode, and the indicator light starts to flash rapidly.

Note: You can usually see it above the headset

4. If the Bluetooth headset has been paired with other devices, you need to ensure that the Bluetooth headset has been turned off, and then press and hold the multifunction key for about 5s until the indicator light (such as blue) starts flashing rapidly.

5. At this time, put the Bluetooth headset on your ear, open your phone, enter Settings, and select Bluetooth.

6. In the "Bluetooth" interface, touch the button Bluetooth switch to turn on the Bluetooth function.

Note: It takes some time to turn on Bluetooth. When it is turned on, the prompt "Bluetooth is being turned on" will be displayed. Sometimes it may take a little while.

7. After the mobile phone searches for Bluetooth devices, it should not follow the prompt of "touch can pair". At this time, the Bluetooth headset will generally have a prompt tone.

8. After touching the Bluetooth device, the phone will display "pairing", and the Bluetooth headset will also have a corresponding prompt tone.

9. Wait a moment, the Bluetooth headset voice prompts "pairing succeeded", and the phone also displays "connected".

10. To cancel pairing, enter this device and select "Cancel pairing".