I own a Samsung QLED TV 55Q7FAM connected with a Samsung HW-M450 Soundbar via HDMI ARC channel, the two devices worked perfect together for 3 years, since a few months the TV does not recognize the soundbar when powering on, only after switching back and forth to tv speaker, the soundbar plays the sound from the TV. It powers on when the TV powers on but it has no sound.
I contacted Samsung and they did a factory reset to the TV & the HDMI ports, I exchanged the HDMI cable with a new one, both devices have latest FW updates, I did a reset also in the soundbar without any luck.
Does anyone have any other solutions to this problem?
I wish someone did, many many posts with this issue including one from my myself. It’s either a hardware defect with no practical fix, or a software issue that does not seem to be priority to address. I am extremely frustrated with this issue and at my wits end.