This projector does not support Dolby Digital (AC3) audio. If a movie is silent, go to your source settings (like a Fire Stick) and change audio output to PCM or Stereo .
There are at least four distinct sub-models of the YG300 (YG300, YG300 Plus, YG300 Pro, and YG300 Max). Using the wrong firmware file can brick your device (turn it into a non-working plastic brick).
Have you successfully updated your YG300? Share the file version and build number in the comments below to help other readers. Happy projecting!
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Updating the software on your YG300 projector is a relatively straightforward process. Here's a step-by-step guide:
: Plug the USB drive into the projector's USB port while the device is off.