Solutions:
If Mi phone, Mi PAD speaker has no sound, it is suggested:
1. Check whether the phone turn on mute, do not disturb and other modes, close the relevant modes and try again.
2. Check whether the Bluetooth headset is connected, turn off the Bluetooth or turn off the Bluetooth headset and try again.
3. Try to play online music with original music software to confirm whether the problem is caused by some applications.
4. Upgrade to the latest version of MIUI.
5. If there is no sound after the above steps, it is suggested to go to the after-sales center for inspection.