I bought recently a LG 43UJ6300 TV, bad idea. Image looks terrible, backlight is so far from Samsung standard, colors looks weird. I play with all possible settings. Finally, I read in multiple forums about how to enter service menu.
For those who don’t have neither knowledge nor time to make a homemade remote, there is an alternative solution: buy a LG service remote in ebay or amazon, also known as “Remocon”. Is not that expensive: about ten dolars.
After this you can enter the service menu by pressing the IN START button, then menu System1, then disable dimming.
What was the result: well not bat, not it was not what I was expecting.
I thought changing this parameter would improve backlight a lot, that did’t happen. What actually happened was the colors getting better. Dimming, for some reason, causes some color looks strange and some other look darker. For example The Simpsons looked kind of ‘green’, after dimming if off color looks right. Same thing happened with Sonic 4 Game.
Short story, it looks better but still far from typicall Samsung quality. Don’t but LG, bad decision.