samsung led tv

Hi We have a Samsung TV (UE50MU6120) which developed the seemingly common fault of several bright spots over the screen. All the information online suggested it was the LED lens covers/reflectors which had come loose. I have just got round to dismantling the TV today to discover that all of...

Hoping for some help as the bottom four LED strips on my Samsung UE55JU6800K TV are not working. I've replaced all of the LED strips for brand new ones and also swapped out the power supply for one that has been tested and it's still not fixed the issue. What else could be causing the issue...