The region is automatically set by default by the Xiaomi smartphone, so if we are on vacation, for example, we can set the region manually if desired.

Android 10 (MIUI 12.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Additional settings
Step 3:  Tap on  Region
Step 4:  Choose a  region
  1. Open the Settings
  2. Tap on Additional settings
  3. Tap on Region
  4. Choose a region

Xiaomi Instructions