No Desktop Video Device Detected

If the message ‘No Desktop Video Device Detected’ appears when trying to use one of Blackmagic’s I/O boxes, have no fear! Simply follow the steps below and you’ll be back in business in no time.

Don’t panic if you see this message!
1. Open up System Preferences > Security & Privacy > General.
2. Select App Store and identified developers” and then “Allow” Blackmagic Design in the pop-up window.
3. After clicking the lock, your hardware should be displayed on Desktop Video Setup. If not, try restarting computer.

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