Xiaomi Redmi Note 11
Android 11.0
1. Find "Ringtone"
Press Settings.
Press Sound & vibration.
Press Ringtone.
2. Select ring tone
Press the required SIM.
Press More.
Press Choose local ringtone and go to the required folder.
Press the required ring tones to hear them.
Once you've found a ring tone you like, press OK.
3. Return to the home screen
Press the Home key to return to the home screen.