Have you ever created a video only to realize that you turned your camera at a weird angle? When you try to play it back your phone won't allow you to play back the video without lock rotation.
It is best to turn your phone to landscape when recording videos, but if you've gotten caught up in the moment and recorded a special video incorrectly, you can fix the video rotation.
Dowload the Video Rotate & Flip App.
The videos in you camera roll will appear in the App. Select the video you want to fix. Correct the orientation and save the new video.
The new video appears in your camera roll.