I bought a used OnePlus 3 on ebay and because I already had another OP3 I noticed right away that the screen was different. Especially in a dark room it was obi

I bought a used OnePlus 3 on ebay and because I already had another OP3 I noticed right away that the screen was different. Especially in a dark room it was obious that somebody had replaced the original OLED screen with a cheaper IPS one. I did end up getting a partial refund for about the price of a replacement OLED screen.