Ever lay in bed trying to send a text message only to have your screen fight your for which orientation it wants to be in? Yeah, well it gets old quick trying to do something in portrait mode while your display is switching to landscape mode, doesn't it? Luckily with just a few simple clicks you can take care of this issue and lock your screen into portrait mode.
- Open your device settings
- Scroll to display
- Check / un-check Auto-rotate screen
Having the box checked will allow the phone to determine based on the way it is held which direction the screen should be going, and unchecking the box will lock it into portrait mode for you.