When my set top box is on the time screen its says DUI blinking what is that?
Hey Mystery, you see that DUI on the display when you first turn on the STB or it stays the whole time the STB is on.
Actually, it is saying DVI (STB display can't make a true V). That means that is negotiating the HDMI handshake with your TV to make sure it is connected to a compliant device. It should only show up when you initially turn on the STB / TV or home theater system (depending on how your system is connected).
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