Came across this site,and was curious if it's correct.I have not and as far as the THX app for your smart phone my phone does not support MHL which is required to use a m-usb to hdmi cable.Would like to get the best out of my LG 65UHD60 4K TV.Any thoughts.... https://www.techhive.com/article/2079503/smart-tv/easily-calibrate-your-new-hdtv.html