1, insufficient current output: this situation is usually caused by computer charging. Because the output of usb is small, sometimes it will cause the phenomenon that it can't be charged when it is turned on. If it is plugged into a computer to charge, you can switch to a socket to charge.

2. Can't make ends meet: This means that when the mobile phone can't charge, it is because the mobile phone is not charged enough, so the mobile phone can be charged only when it is turned off. The solution is to turn on the mobile phone in flight mode when it is turned on, or adjust the brightness of the mobile phone to the lowest level to charge it.

3. The charger is not original: the original charger plug needs to be replaced before charging.

4. The charger and data cable connector are aging for a long time or the interface is dirty: you can change the charging head. Or take a thin piece of metallographic sandpaper and cut it to the right size. After folding it in half several times, gently polish it at the interface, and then plug it in for charging.