Q:"How can I rotate a 3GP video?" - Quora

There are all sorts of similar things that happen, in which you may have forgotten to adjust the shooting mode or you may have record an inverted 3GP video because of the camera position. When you realize this, you might not know what to do. Don't fret. To help correct and rotate 3GP video orientation, today we are going to talk about 4 top solutions and teach you how to operate.