What to do if the firmware upgrade of the Mijia Air Conditioner Pro Eco Inverter 1.5 HP fails in the Xiaomi Home App?

If the firmware upgrade fails of the Mijia Air Conditioner Pro Eco Inverter 1.5 HP, follow these steps:
1. Update the Xiaomi Home App to the latest version and retry;
2. Check if the Wi-Fi connection is stable;
3. Try switching to a different network and attempt the upgrade again;
4. Do not exit the upgrade interface or close the Xiaomi Home App during the update to ensure a complete installation.
If the issue persists, please contact the after-sales service for further inspection.