Solution:
1. For Android phones:
Xiaomi phone: Turn on the phone Settings - Connection & sharing- Cast, it will automatically search for the projector nearby, and then select the projector that you want to project the screen, and the projection can be completed.
Other Android phones: Turn on the phone Settings -- Network and Connection -- More Connection methods -- Wireless Display -- Turn on the wireless display. After turning on the wireless display, it will automatically search for the nearby projector, and then select the projector that you want to project the screen, and the projection can be completed.
Description: Part of the Android phones has the feature of project local pictures and videos does not need to open Miracast, and the projector only needs to be turned on and connected to the same LAN with mobile phone. Dlan protocol is used in the screen projection protocol.
2. For IPhone:
When the mobile phone and the TV are connected to the same WiFi, pull out the control center at the bottom of the desktop of the mobile phone, click "Screen Image" on the popup page, and when it is opened, it will automatically search for the projector nearby, and then select the projector that you want to project the screen, and the screen can be completed.
Note: Local pictures, music, videos, etc., are also operated according to this method.
3. For third-party video software screen projection method:
When the mobile phone and TV are connected to the same WiFi, select the video you want to watch on the mobile phone App and click play. Then click the TV button marked on the top of the video App. When it is opened, it will automatically search for the projector nearby, and then select the projector that you want to project the screen. Then, the screen projection can be completed.