Regular check and update your Xiaomi TV Box S firmware will let you enjoy a smooth experience while watching your favorite TV Shows and movies.

Before proceed with the update, please ensure the following:

• Stable internet connection: Ensure you have a stable internet connection during the update process.
• Power dupply: Keep the Mi Box S connected to a power source throughout the update.
• Do not interrupt: Avoid interrupting the update process by unplugging the device or turning off the power.
• Backup data: While unlikely, it’s always a good idea to back up any important data before performing a system update.

Here’s how you can update the firmware on your Xiaomi TV Box S:

How to update Xiaomi TV Box S firmware

1. Check for updates

Method 1: Through the Mi Box S

1. Go to Settings > Device Preferences > About > System update.
2. The Mi Box S will automatically check for updates.
3. If an update is available, follow the on-screen instructions to download and install it.

Method 2: Through the Google TV app

1. Open the Google TV app on your phone or tablet.
2. Select your Mi Box S from the list of devices.
3. Check for updates under the device settings.

2. Install updates

1. The Mi Box S will download the update file.
2. Once the download is complete, the Mi Box S will automatically restart and install the update.
3. After the installation is finished, the Mi Box S will reboot again.

3. Additional tips

• Enable Automatic Updates: You can enable automatic updates in the settings to ensure your Mi Box S always has the latest firmware.
• Check for updates regularly: Regularly check for updates to benefit from the latest features, performance improvements, and security patches.

By keeping your Mi Box S updated with the latest firmware, you can ensure optimal performance, enhance security, and enjoy the best possible user experience.

You probably encounter a sudden no sound issue, this is a common issue for Xiaomi TV Box S, you can read full article on how to fix this issue here.

I hope this helps! Let me know if you have any other questions.