1. It may be that the plug is not powered on. Check whether the power key of the socket is turned on and whether the power supply is smooth.
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2, the USB data cable and the port connected to the phone is not plugged in, causing the current failure, you should plug it back in and observe whether the electronic device is powered on.
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3, check whether there is a problem with the base of the charger connected to the power supply, that is, after unplugging it, connect the computer through the data cable to see if you can charge the phone.
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4, the data line interface may be damaged, it is recommended to change other mobile phones to try, if it can not be charged, it means to replace the new line.