The easiest way to rotate your iPhone or iPad screen is by physically tilting the device. As long as the Orientation Lock toggle isn't turned on, you can easily switch between Portrait and Landscape ...
Rotating the screen on an iPhone is essential for viewing photos and videos in landscape mode, but sometimes it doesn't work.
You can use an Accessibility feature called AssistiveTouch to rotate your iPhone or iPad screen without tilting it. Once you have enabled AssistiveTouch, tap the ...
If your iPad screen won't rotate, you might have to turn off the Orientation Lock or do some other troubleshooting.