TVFi is an app that allows you to launch Wifi display / Miracast / screen mirroring in single tap. It will work only on phone that support Miracast or screen mirroring. Miracast or Wireless display feature is supported on Android 4.2 and above. There may be some phones that are above Android 4.2 but do not support Miracast or screen mirroring. Please check with Mobile phone manufacturer for more details in case TVFi app is not able to launch screen mirroring. We will shortly publish list of mobile phones that support Miracast.