Most missed cleaning and abnormal cleaning trace are caused by dirty wall sensor (at right side of device).
We suggest you use wet cloth or tissue to clean wall sensor first, and then use dry tissue or cloth to clean it. Do it for multiple times. You need to clear everywhere of sensor glass.
Most missed cleaning and abnormal cleaning trace are caused by dirty wall sensor (at right side of device).
We suggest you use wet cloth or tissue to clean wall sensor first, and then use dry tissue or cloth to clean it. Do it for multiple times. You need to clear everywhere of sensor glass.