I purchased a 65NU7100 last week and connected it to a Bose soundbar and saw this issue the first two nights. I have SmartThings in my home so my device event logs showed that the TV turned on around 12:37am the first nightnigh I discovered it was on 20 hours later! I enabled auto turn off the next day so that the TV turned itself off after 4 hours of inactivity. This time the TV turned at 1:45am and auto turned off at 5:45am. After reading through all 21 pages of this thread and multiple Bose threads, I attempted the following: 1) Turn off the auto wake feature of the Bose soundbar 2) Turn off auto update on my Samsung TV 3) Manually run a pending software update on my TV I didn't turn of CEC because that's an essential feature for me. It's been 3 nights so far after I attempted all of the above and my TV hasn't auto turned on in the middle of the night (or any other time of the day).
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