There is a new upgrade available for Xiaomi Mi Box S.
Once you have opened your TV Box, it will show you the message Android System Update.
Once you press the round button (OK) on the remote control, the download will begin and then the upgrade.
The changes made to this upgrade are:
1. Improves WiFi stability and connectivity for accidental disconnection
2. Fix for wake-up problems
3. Fix the red Netflix objects in the exact frame
4. Improves stability for remote Bluetooth disconnection
5. Add automatic frame rate switching capability.
You may want to check:
Find the lowest price on Xiaomi Mi Box S HERE