1. Open Tik Tok first.

2. Then click on the three points in the lower right corner.

3. Second, click on the projection screen.

4. Then it will automatically search TV.

5. Find your own device and select the projection screen.

Tik Tok, a short video social software with musical creativity, was hatched by ByteDance.

The software was launched on September 20, 2006. It is a short video community platform suitable for all ages. Users can choose songs, shoot music works and form their own works through this software.