So on Monday evening I bought a used Oneplus 3T from OLX. The seller was a 21-22 years old kid and told me that he himself purchased the phone 3 months ago from dubai and selling it to upgrade to Mi Mix2. Anyways, I thoroughly checked the set using its secret code and different apps. Once I was satisfied I paid for the set and came home. After reaching home, I ran different apps including heavy games and benchmark apps. Since then, everything was working perfectly fine until last night. I was sitting in a friend's house and phone was in my jacket's pocket, I received a message and took the phone out of my pocket, that's when I noticed the display was a little yellowish. I didn't think of it much and put it back in my pocket. When I reached home, I took the phone out and that's when I noticed that there were lines all over the display and colors were washed out. I don't know what happened, I went to market to get it checked and the repair guy told me that the display is done for and needs to be replaced I still can't understand how this happened, could it have been faulty when I purchased it or was it just bad luck, as the phone never fell down or pressed on during my short ownership. Can anyone suggest me some shop in Isb/Rwp where I can get it replaced, I don't want to buy the LCD online from aliexpress as I don't know if those displays will be any good. I am hoping that I can find the display locally...