What to do to fix the CEC “off” command? It doesn’t work with Roku, Xbox etc. Did my VAVA 4K projector go wrong?

Actually, this is not broken. This is a limitation with the projector. As a workaround, some customers are able to use a power relay to switch off the unit and it works fine. Please note there is still some risk mainly result of poor wiring.

Also, a relay can be considered as unplugging plugging the electronic device from the power source.

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