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Samsung UE55MU6120

So about 2y after purchasing tv we started getting these blue spots then about 3+1/2y screen going full negative at first it would come back quickly but now it’s sometimes absolutely ages and we just give up and turn it off. If we can’t fix blue spots fair enough but is there any way to fix the negative because it’s unwatchable and I’m so annoyed this TV was not cheap and has not lasted a reasonable time. Thanks for any help

@yoohoosauna this can be a panel issue (issues with the LCD drivers) or a T-con board error. At this time I would go ahead and invest in a T-con replacement. Purchase from somewhere that has an easy return policy, or even an inexpensive used on…… just in case.