S21 Black round dot close to the camera black dot

[cclerc]

I just received my S21 (refurbished) and a black dot remains on the screen near the front camera (see picture below). I've tried restarting the phone, and also testing the pixels with *#0*# but it still appears in all cases. Have any of you had a similar problem and found a solution? Also, as the dot is quite small, do you think it would be risky to keep this phone? Thanks for your replies. 

I

[Fiona26]

I would return, I've come across posts with people with the same issue. It is a fault with the screen. Damage or dead pixels.
https://eu.community.samsung.com/t5/galaxy-z-fold-z-flip/black-dot-on-top-of-my-zflip-3/td-p/6826739
Post with a similar dot.

[TNJGB]

There is also a developer option that gives a similar effect called "simulate display with cutout" with six options that can produce a black circle on the screen. Check in your developer options that this is not active and set to default.