Sorry for the late response, but how did your bad LCD manifest? I had to get my original TV replaced under warranty, and about 2 months ago the replacement started exhibiting the same symptoms. The Hisense engineer told me it was a bad T con board, but the little I researched it that doesn't seem as likely as either a mainboard or the LCD itself. I am betting this issue is pretty widespread, just from my own sample of having 2 TVs show the same symptoms.I have had terrible luck with this set, all of the magenta issues, and my TV had a bad LCD within 6 months of ownership which was replaced under warranty. The second TV just failed as of a week ago, with a bad LCD. It isnt repairable and now out of warranty (month 15). Huge waste of time,money and aggravation trying to fix the magenta problems. I reached out to hisense and was basically told tough luck. Im looking at the Vizio PQ 65, COSTCO will have it for under 1500 within a few weeks, im hoping that will work for longer then 15 months.
Anyway, once the problem starts showing up, it now happens virtually every time I turn the TV on. About 30 seconds of the TV being on, the display will glitch, and continue until I turn it off and on again (and sometimes even another cycle). Basically it will either stop updating the display on portions of the TV, or the display will go completely dark, and then cycle between red, green, blue, white, and black again. Here are a couple examples: https://imgur.com/a/pM7j5E5
Curious if anyone else has seen this, or has an idea of what the problem is. If its not too hard I wouldn't mind trying to replace it. The TV does work fine for multiple hours after restarting the TV, so maybe it isn't too bad of an issue?