How to fix blue screen issue on LG TV part 2 

Can we fix this TV with a Blue tinge/hue on the screen?
Make sure to watch part 1 to see the issue and in part 2 we install new parts.
TV: LG 49UH701V 4K Smart TV
I hope you learn some things watching these videos and BE CAREFUL if you replicate any of these actions.
DISCLAIMER: I am not responsible for you getting shocked, any fires or accidents that may arise from you replicating the actions seen in the videos.