Why doesn't Xiaomi 1 1 display the decimal point when charging?

When the mobile phone is charged by using the secure encryption flash charging device, QC3, QC4 and USB-PD2.0/3.0(PPS), the double lightning fast charging icon will be displayed on the right side of the battery icon in the status bar; The security encryption flash charging equipment with charging power above 30W can be plugged in when the screen is locked, and you can see a brand-new charging animation and the decimal point of power percentage rising rapidly.

The following is the specific operation of Xiaomi to turn on the digital display of power: 1, turn on the mobile phone, then find the settings on the desktop and enter. 2. Then enter other advanced settings to find power and performance. 3. Click and enter the power supply and performance, and then select the power supply display style in the status bar. 4. Turn on the digital display.