Most of the cases are due to the mobile phone running programs 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 consumption of the mobile phone itself, charging but the power does not increase but the more charged the less. In addition, the mobile phone is connected to the computer to charge or the charger failure may also occur, because the computer USB interface output current is small and unstable.
1. Avoid using the phone while charging, and see whether the phone is charged normally when the phone is not in use.
2. It is recommended to use the standard charger to charge the phone, and do not use the USB interface or the device with small output current to charge the phone.
3. If the standard charger is used to charge the phone when it is turned on, the power will not increase. If the phone is powered off and charged properly, it may be caused by fast power consumption caused by software. It is recommended to back up data first, upgrade the system to the latest version, uninstall high-power applications in the phone, clean the background applications of the phone before charging, or restore the phone to the factory after backing up data.
4. If the standard charger is still not normal to shut down and charge, the charger may be faulty, it is recommended to replace the charger.
If it still cannot be solved after the above operations, back up the data in advance and take the purchase invoice to the after-sales service point for maintenance.