How to fix sound sync issue on the Xiaomi TV A 50 2025?

If there is a sound sync issue on the Xiaomi TV A 50 2025, please refer to the following scenarios and their troubleshooting methods:
Scenario 1:
If the issue occurs when you are using APPs on your TV, please refer to the following methods:
1. Confirm that your TV is connected to a stable network;
2. Some APPs have their own audio settings. Check if the APP you’re using has any specific settings for syncing sounds;
3. Clear the cache and data of the streaming APP experiencing issues;
4. Ensure that the system version and APP you are using is up to date;
5. You can uninstall and reinstall the APPs from the TV and check if the issue persists;
6. As a last resort, you can try performing a factory reset on your TV. Be aware that this will erase all your settings and data, so make sure to back up any important data before proceeding.
Scenario 2: 
If the issue occurs when you are using an external device like a DVD player or game console, please refer to the following methods:
1. Ensure the cables connecting external devices to your TV are firmly and correctly plugged into the appropriate ports;
2. Ensure that your HDMI cable is in good condition. If possible, try using a different HDMI cable to see if the issue persists;
3. Check if the device you’re using has any specific settings for syncing sounds.
Scenario 3: 
If the issue occurs when you are using casting on your TV, please refer to the following methods:
1. Please make sure that both the casting device (such as your computer or smartphone) and the TV are connected to the same Wi-Fi network and have a good signal;
2. Check the casting device settings for any display or casting settings. Make sure the casting device is set to the correct audio settings.
If the above methods are not effective, please contact the after-sales service center for assistance.
Note:
The recommended bit rates of the video stream are shown below:
1. The 4K UHD video stream requires 10Mbps;
2. The 2K video stream requires 5Mbps;
3. The 720p video stream requires 2.5Mbps.