1. Restart the speaker: disconnect the power supply of the speaker, then reconnect it and restart it, thus solving the temporary problem.
2. Check the network connection: the speaker is connected to the network, so the problem is that the network connection is interrupted or unstable. Check whether the network connection is normal or restart the router.
3. Restore the factory settings: In some cases, restoring the speakers to the factory settings will solve the problem, which will delete all existing settings and caches and restore them to the factory state.
4. Check the hardware problem: None of the above methods can solve the problem, so the problem lies in the hardware, including hardware component damage or circuit board failure. In this case, you need to contact professional Changhong maintenance service or seek the help of other professional maintenance services.