1. Open the Settings application on the phone's home screen.
2. Find the "General" column in the list of settings, and then click Enter.
3. Find the "Dose" column in the master list, and then click Enter.
4. In the usage list, open "Battery Percentage" to realize the digital display of power.
5. At this point, in the status bar at the top of the mobile phone screen, you can see that the digital percentage display has appeared on the left side of the battery.