It could be either the cable box or the display, probably equally likely. If it was working, it is unlikely to be the cabling unless it is either extremely long or going through an HDMI switch.
I'd start by powering everything off, unplugging from the wall, and powering back up, display first and then cable box.
Anyone else with the same model Samsung having a problem?
I'd start by powering everything off, unplugging from the wall, and powering back up, display first and then cable box.
Anyone else with the same model Samsung having a problem?