Recently purchased a Samsung p58c550 from girlfriends parents for pretty cheap, go figure it has the famous purple pink banding issue found on white scenery that I've read about on here, the TV does thankfully have a brand new panel but unfortunately issue returned after that I was told, my main questions, I found a logic firmware file on here that might offer a fix but its for a 3d model, will flashing just this file resolve the issue and if so how do we access the service menu on these TVs? Second question, this TV is obviously around 3-4 years old so I doubt Samsung will take responsibility for the flaw however I can at least put up with the banding for now, if I were to just leave it will these TVs generally still work for a long time or will it get worse, according to what Ive read it appears to be something not getting enough voltage which I imagine wouldn't get worse overtime