Specific steps: 1. Make sure that the projector/box and the mobile phone are connected to the same wifi.

2. Open Tencent Video and click Personal Center.

3. Click TV Assistant, click the projection TV in the upper right corner, search for projector equipment, and click Connect.

Correctly switching the projector power supply has a great influence on the service life of the projection bulb and the projector internal accessories. If the power supply of the projector is turned off at will, the power supply of the projection bulb and the circuit part of the projector may be turned off together, and the cooling fan inside the projector will also stop working due to power failure.