Chosen Solution
Hopefully this is an easy fix, like a loose wire or something lol. I think it’s due to being dropped a few times (no cracks or anything). I’m assuming it’s the LCD. There are times where the intensity of the line coverage varies from time to time (sometimes I can see the screen through it). Thanks for reading! :)
Edit: here’s another picture where u can see through it
Not possible to fix those lines. you should have to change LCD