1. Try shutdown charging (boot charging, battery in charge and discharge of two states coexist)
2. Clean the contact point of the battery and mobile phone battery, and check whether the contact point is damaged (poor contact will also cause this situation)
3. Connect the data cable to the computer to charge (whether the charging head is damaged)
4. Replace the data cable to try (whether there is a problem with the USB cable)
5. Replace the battery (whether the battery is aging or damaged)
6. Please backup your mobile phone data (phone book, SMS information, multimedia information, etc.) Restore the factory Settings of the mobile phone: Settings - Privacy - restore factory Settings (eliminate whether the fault caused by software)