Black square patch on top left of the display

[manoj9581]

I am noticing black square patch on the top left of the screen oftenly comes. Don't know is it bug or display issue

I am using samsung smart flip cover.

Anyone facing same issue?

[IndiaBetaTeam]

Dear Samsung Member, 

Greetings from India Beta Team!

We acknowledge your feedback.
However, we request you to please report this feedback in the Error section, along with the logs. This would help us analyze your issue in a better way.

The path to report error is as below: 
Open Samsung Members -> Click on beta banner -> Switch to beta mode-> Beta feedback -> Send feedback -> Error report

Thank you for being our valued customer.

Warm Regards,
India Beta Team