reason
< br >
1, ensure that the TV and mobile phone are connected to the same network, to avoid the TV is connected to WiFi, the mobile phone is using traffic or using another network;
< br >
2, If the TV screen projection function is turned off, the user can enter the TV general setting - multi-screen interaction function, and turn on the screen projection function again.
< br >
3, if it is due to copyright restrictions, the player does not support the screen, the user can try to cast the screen through the screen image.