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<summary>Why the device does not show the video? Only only display <b>No Signals</b>?</summary>
<ul><li>Double-check that the video capture device is connected correctly and tightly. For the CSI bridge, this should be exactly the camera port;</li>
<li>Some laptops do not output any signal until you switch the output (usually via the FN + and an F5 key on the keyboard).</li>