The reason why the TV cast no cast screen device is because the phone and TV are not in the same network, the TV and cell phone connected to the same network can be realized cast screen, the specific steps are as follows:
1, on the TV application to open the cast screen and turn on the cast screen switch, and then the cell phone and the TV connected to the same network.
2, on the phone to find the video to cast screen to the TV, open the playback, click on the upper right corner of the three dots, pop-up menu options.
3, and then click on the menu that appears, select the cast screen after the start of the search for devices, click on the searched device to connect.
4, the phone cast screen successfully, the TV began to play the cast screen content in the video, the phone can return to do other operations.
5, after the completion of the screen casting, the TV screen began to play normal cell phone casting movie and television content, TV screen casting is complete.