Chosen Solution

I’ve just finished replacing the logic board in my dead galaxy s9. Prior to replacing it the screen was perfect. After putting it back together, my screen has a bunch of LEDs near the bottom that won’t display blue colors at all.

If I’d have to guess, I might have heated the screen too much when trying to remove the back cover/battery. Question is, does anyone know any way (dumb or risky to the screen itself) to try and fix this situation other than buying a new screen? Thanks.

It looks to be either liquid or heat damage. Unfortunately, if moist/heat damage is the case, you will need to replace the whole screen. Note: Sometimes, heat damage would only damage the polarizer, not the screen. You will need special machines and skill to replace the polarizer without destroying the screen.