Sound sync issue on the Xiaomi Mi Smart Projector.

Troubleshooting if the sound sync issue on the Xiaomi Mi Smart Projector, please refer to the following steps:
1. Make sure the source device's audio settings are correct and there are no audio delay settings enabled;
2. Turn off both the projector and the source device, wait a moment, then turn them back on. This can often fix sync issues;
3. If possible, adjust the audio delay settings on the projector to sync the audio with the video;
4. Check for updates for the projector's software that may include fixes for sync problems. Install any available updates;
5. Ensure both the projector and source device are set to the same audio output format (e.g., stereo, surround sound);
6. Try playing different content to see if the sync issue persists across various sources;
7. If needed, reset the projector's audio and video settings to default in the settings menu;
8. If using external speakers, check them to ensure they're not causing the sync problem. Test them with other devices to confirm;
9. If the troubleshooting steps above not resolved the issue, contact your local after-sales for further assistance regarding this issue.