Try the usual and power off, unplug it's HDMI connections and then pull the power plug for 10 minutes. Power up and test one input and hope that's it.
Hello. Just wondering if anyone here could possibly give me a hand. I have a 65" Samsung curved tv that until today always worked great. But now my sound will just disappear or be all muffled, and the red stand by light will continue to stay on when tv is powered on or start to flicker. I still have good picture but can't figure out what's going on. I've unplugged it and all that jazz, did the reset, had Samsung support on phone and still nothing. It's unplugged again now and will let it be till tomorrow but if any one else has had this issue or has any ideas, I'd appreciate your input. Thank you very much.

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