Galaxy Note 8 proximity sensor stopped working

[PMK]

After the recent software update, my samsung note 8's proximity sensor stopped working. 

Is it because of any software issues or hardware problem. How can I check this.

Please help.

[Anonymous]

reset the device

[Bubluu]

This may help you.
To check proximity sensor working. Dial
*#0*#
on your phone. Then click sensor and to test , place your palm close to sensor which may be placed near front camera or cover the most of the palm covering the phone top bezel surface. If it recognise it may change the display colour and vibrate then proximity sensor is working fine.

[Samsung_Support3]

Dear Samsung Member,

Greetings from Samsung Customer Support!

Please perform the below mentioned steps to resolve the issue:

1. Please check after restarting your device. 

2. Check device in Safe Mode.
a. Press and hold the Power key, when Power off icon appears.
b. Press and hold the power off icon.
To exit safe mode just restart your device.

For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support

[bhumish]

same thing happened with me all sensor stopped working after September security patch.

I reset whole device twice.

I go to coustermer care they say wait till samsung fix this issue in next update.

[bhumish]

this kind of issue in flagship device is not acceptable