How to calibrate the Proximity Sensor on my Xiaomi phone?
If you suspect the proximity sensor on your Xiaomi phone is acting weird or wonky, you can try to calibrate it.
- On your phone’s dialer, enter * # * # 64663 # * # *
- On the Hardware tests menu, select Proximity sensor.
- Tap the Calibrate button.
- When you see Calibration passed, you can tap the Home button to exit the hardware test.