Problem with proximity sensor of samsung galaxy A51

[nickhilasthana]

A51's proximity sensor doesn't works well.

It always turns on the screen and which in turn makes other apps opening or closing. 

This irritates alot.

[cs-member13]

Dear Samsung Member,

Greetings from Samsung Customer Support!

To resolve the issue please follow below given steps:-

1. Check device in safe mode:- Using Safe Mode on a Samsung phone allows you to force the device to run the essential operating system, and disable most 3rd party applications.
To enter in safe mode:- Press and hold the Power key, when Power off icon appears > Press and hold the power off icon.
To exit safe mode restart the device.

2. Reset the device:- Before resetting, kindly create data backup of your device via SMART switch mobile application or http://www.samsung.com/in/support/smartswitch pc suite.
How to reset:- Settings > General management > Reset.

If the issue still persist, kindly register your concern in Samsung Members app along with short video, screenshot and error log file(Samsung Members app > Get help > Feedback > Error report/ask question).
Note: Please send device log files within 15 minutes of issue occurrence along with the exact issue details.

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support