1, insufficient power: If the robot is low in power, there will be a case where the keys are unresponsive. At this time, the robot needs to be connected to the power supply to charge, or the battery needs to be replaced.

2. Button failure: If the robot button is damaged or fails, it will also cause the button to be unresponsive. At this time, you can try to check whether the key is loose or stuck, or try to operate with other keys.

3. System failure: If the robot's system fails, the button will not respond. At this point, you can try to restart the robot or restore the robot to the factory settings.

4. Network connection problem: If the robot needs to connect to the network for operation, unstable network connection or failure will also lead to no response of the keys. At this point, you can try to check whether the network connection is normal or try to reconnect to the network.