Chosen Solution

I changed the battery of this device recently by taking it to an Apple Authorized service centre, and two days later I noticed this overbright spot right in the middle of my display. I think it’s caused by excessive pressure from the underside (swollen battery seems unlikely, since it was replaced less than a week ago) or a bit of dust under the screen.what are my options going forward? is it possible to reduce the pressure or eliminate the spot?

Hi Without pictures ,it’s probably a pressure mark You might be able to have it resolved if you go back to the shop and ask them reseat the screen and tell them that the issue came after they repaired it Hopefully this answers your question Thanks:)