Recording a quick video
From the Home screen tap Apps
> Camera 
to open the Camera application.Tap the Mode Switch icon
to toggle it to Video mode. The camera Mode Switch icon changes to 
and the Capture icon changes to 
.The Video camera’s viewfinder will appear on the screen.
Hold the phone horizontally and point the lens toward the subject of the video.
Tap the Capture icon
once to start recording.The record dot at the upper left corner of the viewfinder turns red and the video length timer begins counting.
Tap the Stop icon
on the screen to stop recording.