akks, May 25, 2019 : I discovered a weird problem with my 3-day old Oneplus 7 pro. I can see a dark circular spot under the display on the top of the screen. It's very subtle and can be seen in darkness only, with screen brightness reduced to a minimum on a white screen. Not visible otherwise. I doubt if it's present in all devices, or is it with me only. As it is very subtle, It's not that bothering. Seen only in darkness when display brightness reduces to a minimum. I'm attaching photos. As it's not easily visible in the photo, I've marked the spot. Sorry for the photo quality. It's not easily seen in the photo. Please advise if I should file a return of the device, or is it present in every device! Thank you Edit (12/07/2019): A better representation of this issue is given here And as some of the users stated here, this may be related to DC Dimming feature or some similar software glitches only, as now on 9.5.9, it's barely visible to me. So it's less likely to be some hardware issue. Hoping for an official response from Oneplus on this.