https://www.cnet.com/news/samsung-working-on-firmware-fix-for-european-tv-owners/

Getting a software update pushed out to your phone, computer and other devices isn't unusual. What's rare is for that update to completely kill your device. 

For some Samsung TV owners in Europe, though, it seems that's exactly what happened. As reported earlier by The Guardian -- and evidenced by customer reports in Samsung's UK community forums -- Samsung TV owners are saying their sets stopped working entirely following a software update. They also reported that Samsung was failing to adequately respond to the complaints.