Check the projector's internal volume level, ensure external speakers are properly connected, and verify the correct audio output is selected on your source device. This is often a simple configuration error, not a hardware failure.
What is your projector having? (e.g., won't turn on, no sound, frozen screen) yg300 firmware
Never interrupt a firmware update. Never use a PC that crashes often. Always verify the MD5 checksum of the downloaded file against the forum post’s checksum. Check the projector's internal volume level, ensure external
If you'd like to move forward with troubleshooting, tell me: What are you trying to fix? What is the exact version number listed in your settings? What brand name (if any) is printed on the box or the unit? Share public link If you'd like to move forward with troubleshooting,
If the projector menu states that no update file is available, check your USB drive configuration. Ensure the drive is under 32GB, strictly formatted to FAT32, and that the file name matches exactly what your manual requires (usually all uppercase letters).
Once the projector successfully boots into the interface, unplug the USB drive. Delete the firmware file from the USB drive on your computer so that the projector does not accidentally re-flash itself the next time you try to watch a movie. Troubleshooting Common Firmware Failures The Projector Ignores the USB Drive