What to do if the Xiaomi Smart Graphene Heater always shows offline in the Xiaomi Home App?

If the Xiaomi Smart Graphene Heater always shows offline in the Xiaomi Home App, please refer to the following steps:
  1. Make sure your phone and the heater are connected to a stable 2.4GHz Wi-Fi network;
  2. Ensure the heater is plugged in and powered on. A completely powered-off device cannot stay connected;
  3. Move the heater closer to the router to avoid weak signal or interference from walls or furniture;
  4. Restart your Wi-Fi router to refresh the connection;
  5. Remove the device from the Xiaomi Home App, reset the heater’s network, and pair it again;
  6. Use a different phone or tablet to check if the issue is device-specific;
  7. If the issue persists, try restarting your phone, router, and heater, then reconnecting.

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