Kit has now arrived. I have only had time to test the HDMI cable. There seems to be a sequence to get it working. Power on TV, power on PDA, connect cable. If your TV or monitor doesn't see the Gemini, take the USC-C connector out and then re-plug it. Works fine on my LG 4K TV although the highlights seem to be blown. My 4K AOC computer monitor works fine. Sound work fine on TV.