Does your Samsung Crystal UHD Ultra 4K TV show a ‘No Signal’ Error or ‘HDMI Cable: Disconnected’ error whenever you connect a gaming console, computer, TV box, and more using an HDMI Port? Is Samsung Smart TV not recognizing any device through HDMI Connection? In this video, we will show you 4 simple but effective solutions to fix HDMI connections not detecting or disconnecting problems on Samsung Smart TV. #SamsungTV 0:00 HDMI Connections not working Samsung Smart TV 0:13 Solution 1: Select the Correct HDMI 0:30 Solution 2: Clean and change Cable & port 0:53 Solution 3: HDMI Troubleshoot 1:22 Solution 4: System Update & Cold boot