First of all, only replace the backup of the intact charger trial, to see the charging situation. The purpose is to detect whether the charger is intact, and if the charging condition is restored, it is the problem of the charger. If nothing happens then keep going down
two
Then replace the backup on the intact data cable trial, see the charging situation. The purpose is to check whether the data cable is intact. If the charging condition is restored at this step, it is the problem of the data cable, and the original data cable is thrown away. If it doesn't work, it's the phone
three
After determining the problem of the phone, you can try to restart it, or open the back cover to remove the battery and then install and start it to check the charging status. If not, it means that the phone hardware problem, can only go to the repair shop repair.
four
According to the usage of my Huawei mobile phone (Honor 3C) and the usage of others, the reason why the power does not increase but decreases during charging for many unexplained reasons is the problem of the data cable, although the data cable is intact..... But it's the data cable problem, try someone else's and you'll know
five
Finally, according to the experience of use, the instability of the voltage will also cause no rush into the electricity, especially in the summer, the user's power consumption is significantly increased, and the voltage is common.
Understand your feelings, please check the interface for foreign objects or dirt.
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If you find a foreign body or dirt in the interface, it is recommended that you clean it in time (use a clean soft brush, if conditions can be stained with alcohol).
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If the interface is not fully inserted or is obviously loose, reinsert it and check whether it is restored.
Most cases of no charging are due to the fact that the phone is running a program when charging, or the mobile phone system has a high power consumption problem, resulting in the charger input current is not enough to offset the power consumed by the phone itself, so there is charging but the power does not increase.
Computer USB interface output current is small and unstable, mobile phone connected to the computer charging may also appear this phenomenon, because if the output current is too small, it can not offset the power consumption of the phone, resulting in no increase in power.
Solution: Avoid using the phone while charging, and observe whether the phone charges normally when not in use. Avoid using USB ports or devices with low output current to charge your phone.
If the phone charges normally when not in use, the software may cause fast power consumption. It is recommended to upgrade the system to the latest version, uninstall the high-power applications in the phone, clean the background applications of the phone before charging, or restore the phone to the factory.