Two dots on lock screen on s21 fe

[s21fe_]

I am noticing two dots on the right side of the selfie camera on the lock screen. They appear only for a second. I'm noticing it today only. It appears when the mobile is locked. I'm not able to take a screenshot of that to post here. Can anyone tell me about this?

I'm using s21 fe sd 888.

[Sayan_SS_ · Accepted solution]

It is the proximity sensor.
A proximity sensor in a mobile device detects the presence of nearby objects without physical contact. It's usually located under the display. 
Thanks 😊
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[s21fe_]

I'm noticing it today only. It appears when the mobile is locked. I'm not able to take a screenshot of that to post here.

[Sayan_SS_]

It Some Time Appear!You Can't Take ScreenShot Of It As It Is An Internal Part&Not A Part of Display Picture.

Thanks 💖

[Wodehouse · Accepted solution]

They are proximity sensors which blink when they sense something close to the phone. Nothing to be worried about.

If this reply answered your query please tap 3 vertical dots to the right of my reply and tap "Resolved". Thank you 😊

[goodthings · Accepted solution]

Please don't bothered about this. They're proximity sensors. If you like please accept as a solution it's help to others users also,click on 3dots in my reply section and click on accept solution. Thanks.

[goodthings]

Your's most welcome to here.

[DINKAR_A34_5G]

The black dots are visual indicators that the proximity sensor is actively working. They are not a display issue.