1. Make sure the power is turned on.
2. Make sure the keyboard and PC device are within 10 meters.
3. Make sure battery storage has power.
4. Make sure that the Bluetooth settings of the PC device are turned on.
5. Make sure that the Bluetooth keyboard and the PC device are connected with Bluetooth.
Note: In order to obtain a longer battery life, it is recommended to turn off the power of the keyboard when the keyboard is not used for a long time, it can effectively prolong the battery life.