If you connect your Apple TV/ fire TV stick to the projector, please turn off the Dolby Audio of the Apple TV/ fire TV stick to get the sound to work.

If you connect your Blue-Ray DVD player to the projector, please set the Audio as PCM to get the sound to work.

If you connect your laptop the projector, please set HDMI as the Audio output device instead of your laptop to get the sound to work.

If you stream the movie from Netflix, please switch the audio in the Netflix settings to the Non 5.1 option then everything will work well.

If you want to connect the external speaker to the projector, please use the AV cable to connect it via earphone port with the yellow jacket to get the sound to work.

For Apple IOS devices, please use a lightning to HDMI adapter to connect your Apple device to the projector. For Android phone devices, please use a Micro USB / Type C to HDMI OR wireless HDMI dongle to connect your phone to the projector. Note: Adapter itself is not included in the package.

Please Choose HDMI as the input source, Connection Guide is as follow:

Please Choose HDMI as the input source, Connection Guide is as follow:

Please use Mini DisplayPort/Type-C to lightning adapter to connect Macbook to the projector. Choose HDMI as the input source and MStar Demo-HDMI as Sound Output Device, Connection Guide is as follow:

Choose HDMI as the input source and Choose PCM as the Digital Audio Output, Connection Guide is as follow:

Click OK Button on the projection image, the Forward/Backward/Zoom Operation will come out at the bottom of the screen. OR you can simply click the Source Button on the projector to enter the Zoom function quickly.

Depending on how you positioned the projector, you may need to change the projection mode to get your projection images correctly.

Choose DMP as Input Source - Go to Movie - Go to your Flash Drive - Choose a Photo or Video - Click the SOURCE button again. The video will come to the full screen view successfully.