What to do if the firmware update for the Xiaomi Smart Air Fryer 4.5L is unsuccessful?

If the firmware update for the device is unsuccessful, please refer to the following troubleshooting steps:
1. If it is impossible to update the firmware in the working state, you can try again in the non-working state;
2. Please check whether the Wi-Fi is connected normally. And you can try to change the network;
3. You can try to upgrade the firmware again for an extended period.