Go to Settings > Info/About to see your current firmware version.

Copy the file to the root directory of your FAT32 USB drive. Do not put it in a folder.

Updating your YG300 can fix playback bugs, improve file compatibility, and occasionally polish the user interface. Here is everything you need to know about the process. 1. Do You Actually Need an Update?

Ensure the update file is named correctly (usually merge.bin or update.img , depending on the specific instructions provided with the file).

This is a "brick." Try unplugging the power for 10 minutes, then holding the power button for 30 seconds while plugging it back in. If this fails, the firmware was likely incompatible with your hardware version.

If you have obtained the correct .bin or .img update file from your seller or a trusted forum, follow these steps:

Insert the USB into the projector while it is turned off . The Update Sequence: Turn on the projector. Navigate to Settings > System Update > USB Update .

If you updated to fix a codec issue and it didn't work, it’s likely a hardware limitation. The YG300 does not support 4K or certain Dolby Audio codecs. The best "update" for this is actually a , which handles the software processing for the projector. Projector Won't Turn On After Update

The Ultimate Guide to the YG300 Projector Software Update The YG300 (often called the Lumos or Pico projector) is a favorite for budget home theaters. However, because it’s a generic "white-label" device produced by various manufacturers, finding a reliable software update can be tricky.

Try a smaller USB drive (the YG300 sometimes struggles to read drives over 32GB).