I purchased a "c" to "hdmi" cable to watch tv from my phone. I connected everything and it worked. Then I disconnected and ran my cable to a more convenient spot, hooked it back up and now my tv says no signal. Chatted with Samsung techs which was totally useless.
Verify under more connection settings that HDMI mode is set. Maybe, cable got damaged while routing it? Unroute it and see if it still works. I use c to hdmi, but only for DEX mode and have not had any issues.
