Problem Explanation：
1. Place Mi Body Composition Scales on a hard, flat floor;
2. Scale barefoot according to the direction shown in the diagram to ensure good contact between the skin of feet and the four metal electrodes on the scale;
3. When the body weight is stable, the body composition test will begin. When the progress bar below the body weight flashes, the test will be finished.Keep a steady posture until the end of the test.