The YG300 (and its variants like the YG300 S) is a budget-friendly mini projector that includes a built-in menu option for software updates . However, because it is a generic model produced by various manufacturers, official firmware files can be difficult to locate.
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The YG300 often comes with a small USB Media Player box (a dongle) plugged into the HDMI or AV port. yg300 projector software update
