Using Samsung brand hdmi adapter to get Note 10.1 2014 edition to TV, used to work, now just keeps bouncing between "HDMI Adapter connected" to "HDMI Adapter disconnected" message, back and forth about every 3 seconds. Signal not getting toTV. Swapped out hdmi cable, hdmi port on tv, tried different tv, tried different power cord (which is plugged into adapter), port on tablet is good, even took adapter back and swapped out, same result. Worked when I first got it, a week later, can't get it to work. Rebooted tablet, tried every possible sequence of plugging stuff in. Can't find settings that would affect this. The only thing that's changed was a device update from Samsung (don't tell me they broke this...!) Any ideas or anyone else seeing this?