What does the music phone show when it is fully charged?

Hehe, nothing is displayed. In this way, if you don't lock the screen, the battery at the top of the screen is full, and you can't see the difference when it is fully charged. If it is charged, the battery will move and there is a lightning symbol on the battery. Then if the screen is locked, the horizontal bar used for dragging when unlocking will also be displayed when charging. Similarly, if you are charging and the battery is not enough, it will move horizontally from left to right like a progress bar, indicating that you are charging. If it is full, the machine charged with a black screen will automatically light up once, and then everything will return to normal. Hehe, if you want to know whether you are full or not, don't bother to collect the program bar and look for the system information. After you go in, there is a "battery information", which clearly says that charging is charging, discharging is discharging, and the amount of electricity is also marked.