We're sorry to hear about the issue you're experiencing with the TV and would love to assist. We have this general article https://www.samsung.com/us/support/troubleshoot/TSG10002233/ to assist with your concern and recommend for you to review these steps provided within.
Please keep us updated on your progress.
Be sure to click " โ Accept as Solution" when you find an answer that works for you.
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I am having the same issue with my 70 " TV and I was told it was nothing they could do about it because it's out of warranty I am not patronizing this company anymore over 20 years of being a loyal customer
