Black spot on screen that are only visible when dark colors are displayed
I have this iPhone XS Max that is refurbished. After purchasing it, weeks later there is a black spot appeared on the screen it is very tiny and only visible when dark colored are displayed on the screen and it also disappears when I lift up the brightness. I’m worried that eventually the black spot will get bigger. Does anyone have the same issue as this? And what did you do to fix it? And also, is this covered under apple warranty?
iPhone XS Max, iOS 14