If the firmware upgrade of the Mijia Air Conditioner Eco EGAT Label No.5 with 1 Star 24000BTU fails in the Xiaomi Home App, please refer to the following methods for troubleshooting:
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. Then attempt the upgrade again.
4. Do not exit the upgrade interface or terminate the Xiaomi Home App during the upgrade to ensure a complete installation.
If the issue persists, please apply for professional after-sales inspection.