If the camera's LED light is active, but there’s no video feed, start by checking the camera's privacy settings to ensure the app you're using has permission to access it (Settings > Privacy & security > Camera). Then, test the camera in a different application to rule out an app-specific problem. Updating your camera and USB drivers through Device Manager can also help address compatibility issues. If these steps don't resolve the issue, there might be a hardware problem with your camera. In cases of internal webcams, professional inspection may be needed, whereas external cameras should be tested on another computer to diagnose the issue.