What does the lock symbol with an arrow around it mean on an iPhones 6s?
How to lock the orientation on the iPhone 3GS with iOS 4We show you how to lock the orientation on your iPhone 3GS running iOS 4 to prevent accidental rotationsEnabling rotation lock on the iPhone 3GSPublished on Jul 6, 2010The iPhone 3GS running iOS 4 can automatically switch between portrait and landscape orientations in many areas of the iOS interface.This can be tremendously useful. For example, many people find that viewing Web pages is better in portrait mode, but typing a URL into the address bar is much easier in landscape mode.There are many cases, however, when you'd rather have your iPhone stay in portrait mode even when it is tilted to the side. In these instances, you can easily lock your iPhone's orientation so it will no longer rotate.Follow these simple steps to lock the orientation of your iPhone 3GS:From any screen, double-tap the home buttonScroll as far left as you can on the multitasking dockThe first symbol to the left will be a circular arrowSelect this to either lock or unlock the orientation of your iPhone 3GSThat's it!