If an app doesn't display video or play audio The app might not be compatible with your adapter. Now the screen on your iPhone, iPad, or iPod touch should appear 2 on your TV, display, or projector.
If you need help, use your display's manual. How to Hook an iPhone to a Traditional Projector. Tip Some upgraded iPhone 4 models will also work with the iPhone 4S procedure. Skip this step if you do not want to transmit audio, or if your projector has no audio input. Open Menu Close Menu Apple.