Chosen Solution
I couldn’t find my phone model here. It’s Realme C17. It fell couple of days back from the table and after that a portion of the screen turned pitch black. The black lines ran horizontally throughout the screen. When I started using it, the horizontal lines were reduced to small portion on the right side. I have noticed that when the phone is cold, the black lines reappear throughout the screen and when the phone is hot, these lines become green and most of it comes back to normal, while some stays green. I want to know what’s this problem and how can I fix it? Thankyou!
aijazalmas just going by what you are describing, this will be a broken display. You will have to replace the LCD screen to repair your phone. Since it is a bit off-brand there are no repair guides for it on iFixit so you would have to use something like this video to show you how to do this. Replacement LCD’s are available at places like this and others I am sure.
