Why does the Redmi Note 14 5G screen not turn off during a call?

Thank you for your support for the Xiaomi product. We apologize for the inconvenience. The Redmi Note 14 5G’s call screen-off function relies on a proximity sensor. If the sensor is blocked or faulty, the screen will not turn off normally. You can check that the proximity sensor near the phone’s receiver is not blocked by a film or other foreign objects. If the sensor is dusty, you can use a clean cotton swab or soft brush to gently clean it. If the above operation does not solve the problem, it is recommended to contact service center for further assistance. Thank you for your support and cooperation.