PURPOSE Camera checks help prevent delays and awkward blank-screen mysteries. CHECK CAMERA SELECTION Confirm the correct camera is selected in the meeting app. PERMISSIONS Make sure the browser or app has permission to use the camera. COMMON FIXES Close other apps using the camera, remove privacy covers, reconnect external cameras, and restart the app if needed. LIGHTING Face a light source when possible and avoid bright windows behind you. BACKUP Join without video if needed and continue the meeting.