If the Xiaomi smartphone's screen doesn't turn off during a call, it's possible that we accidentally enable functions with the ear such as the speaker. To avoid this, we can activate the proximity sensor, which darkens or turns off the screen during a phone call.
Note: The function is not available on every Xiaomi model.
- Open the Phone app
- Open the Settings
- Tap on Incoming call settings
- Enable or disable Proximity sensor