What to do if the Mijia Refrigerator Cross Door 502L displays E9 or H85?

If the Mijia Refrigerator Cross Door 502L displays E9 or H85, it means Wi-Fi communication failure. The cause of the fault is an incorrect network operation, circuit blockage, Wi-Fi failure, and a small probability of a main board failure.
To solve the Wi-Fi communication failure of the device, please refer to the following steps:
  1. Confirm that the network used is 2.4 GHz. The device does not support 5 GHz network.
  2. Update the Xiaomi Home App to the latest version.
  3. Confirm whether the router account and password are entered incorrectly. You can use the mobile hotspot to test the connection. If the mobile hotspot is successfully connected, please check the router.
If the above methods still cannot solve the problem, please apply for after-sales inspection.

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