Unplug your UNIC UC40 projector from the power source to ensure it is completely powered down.
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Double-check that the .bin file is in the root directory and not hidden inside a folder. Unplug your UNIC UC40 projector from the power
If you are a power user, the contains hidden features not listed in the changelog: unic uc40 projector software update exclusive download
Ensure the firmware file is in the root folder and not nested inside another folder.