Mi Band 2 charging has been vibrating is not properly charged caused. It may be caused by the vibration caused by the preset step count, incoming call reminder, and alarm clock reminder. This is normal. You can check the APP on the mobile phone and reset it.
Abnormal millet band in the charging time only LED lights flashing (long bright belongs to full), there is no vibration. You can check whether the plug is firm, and it is best to choose the original charger for its charging