I had high expectations of Miracast function that is unusable for videos and games. The display is zebra, jerky and very quickly blocked. I tried to change the layout of the mini antenna cable of dongle, but nothing works.
By searching on forums since no key to Hdmi format works correctly despite tests that appear to confirm this. It will go to a Sony or Logitech box or wait for a new TV to use the Miracast.
I contacted the Fly Shop seller who pay me the product that does not meet my expectations.