Chosen Solution
So I dropped my phone and my screen was working but it had really bad crack, it did not have any dead pixels but after a day the screen went full black, my question is can i just replace polarizer and should then the phone work or is it damaged and i need to buy a new lcd now? How to check that?
Well since you now have a black screen, the answer should be pretty obvious. You need to buy a new screen. The S10 plus uses OLED panels and whenever you break the screen whether it’s just the glass or you get a black screen, the only way to repair it is to replace the screen. OLED is very thin and fragile which just makes it difficult to repair.
