1. In the startup state, there is a lightning symbol in front of the battery icon in the notification bar at the top of the phone, that is, it is in the charging state. In addition, entering the phone Settings - About the phone - Status information - Battery status can also show whether the phone is charged or not charged.
2, in the case of shutdown, press the power button to light the screen, if the charging icon is displayed, it is charging. Otherwise, pressing the power button will not show anything