Finally got around to setting it up today after making sure the TV had come up to room temperature and... it won't turn on. I've tried everything, made sure the one connect cable was secure on both the box and TV and it's just dead, ugh. Now I guess I have to pack it back up, how do I go about this? As you know, the box is held together by those plastic straps, which I cut when I was opening the TV.
75" Sony Z9F
Receiver: Onkyo 686, Center channel: Klipsch RP-404C, front speakers: Klipsch RP-8000F's, Surrounds: Klipsch RP-500M's, Subwoofer: SVS PB-2000
Roku ultra, Xbox one X, PS4 PRO, Sony UBP-X800