The YG300 natively lacks support for Dolby Digital (AC3) audio. If your video plays but has no sound, update your external player settings to output "PCM" or "Stereo" audio instead of Surround Sound.
Since the YG300 is a budget, non-smart projector, it typically does not have Wi-Fi for "Over-the-Air" (OTA) updates. You will need:
Plug the prepared USB flash drive into the USB port on the side of the projector. yg300 projector software update
Since the internal software is limited, the best way to "update" the YG300 experience is to bypass its interface entirely using external hardware:
Format the USB drive to FAT32 on your computer. The projector cannot read NTFS or exFAT formats for system updates. The YG300 natively lacks support for Dolby Digital
Newer firmware often adds support for updated video codecs or MKV files.
The YG300 does not natively support Dolby Digital (AC3) audio encoding due to licensing limits. If your videos are silent after an update, it is likely a video codec issue rather than a software bug. You will need to convert your video files to standard AAC or MP3 audio using computer software like Handbrake before playing them. Alternative Solutions: When a Software Update Isn't Enough You will need: Plug the prepared USB flash
If the update fails and the unit is dead, try a "hard reset" by unplugging it for 10 minutes. If it still won't boot, the firmware was likely incompatible with your specific hardware revision. Pro-Tip: The "Update" Alternative
The primary reason to keep your YG300 projector's software up to date is to ensure it operates at its peak performance. Firmware updates can bring a host of benefits, including: