There are three possible reasons.
1, the first possibility is: the battery life is too long, the damage is serious, the life of the end, you can change a new battery to try
2, the second may be the fault of the charger, that is, it can not bring load, that is, it can not be charged into the electricity, you can use someone else's charger of the same model to try, if it is indeed the charger problem, buy a new one
3. The third possibility is that the charging circuit of the mobile phone has a problem, and it needs to be sent to the mobile phone repair point to repair and replace the chip
Charger fault: The current load is too low or there is a broken strand phenomenon resulting in no charging, which can be charged by changing a charging cable.
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2, charging circuit fault: If you ensure that the charging line is not any problem, then it may be a circuit fault, need to be sent to repair and replace the chip.
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3, the battery aging is serious: in this case, you can directly change the battery.