I just got the Samsung Galaxy A20 phone 2 weeks ago and it does not connect to hdmi cables and it does not support it. I had to buy a miracast from Amazon to mirror to my tv
Or a google cast stick . And now it works great
I got an A20. Bought a USB-C to HDMI adapter, I used the same HDMI that my DVD player uses, (just pulled it from the player), hooked up and "no signal" displayed. No video at all. Plugged the HDMI cable back into the DVD player, got video. Something is not connecting with my phone. Everyone says it should "Plug and Play" what am I not doing right?