Purchased this TV at the back end of October 2019 and have enjoyed a good number of hours watching it. Yeah, it occasionally turns itself back on after being turned off but I put that down to the Virgin TV Box not being powered down.
Tonight, however, whilst watching the local evening news the TV starts turning itself off and on repeatedly. Turns on shows the Samsung QLED splash screen then goes of again. I've disconnected everything from the TV, still does it. I've left it unplugged for half an hour (more than enough time for capacitors to discharge), still does it. So, it looks like the motherboard is at fault unless Samsung have any better ideas.
To be honest, the number of complaints I've read like this on the internet, I'm kind of surprised that Samsung aren't swimming in class action lawsuits. Modern, solid state electronic hardware breaking down a few months after the end of the warranty period should not be breaking like this!
Certainly am. I’ve tried a replacement power board and that didn’t work so I’m now waiting on a replacement logic board to arrive. I know that the screen itself is ok as it displays briefly before cycling off and on again. Also tried turning on with each of the ribbon cables disconnected. The screen doesn’t display anything but the unit at least stays switched on and I get audio.