While the new iPhone doesn’t have a screen orientation lock button (like iPad), iOS 4 does allow you to prevent auto-rotation of the screen using a software switch. This is handy in case you want to read a web page or iBook publication while laying sideways on your couch.
- Double-click the home button beneath your iPhone or iPod’s screen.
- In the task manager strip at the bottom of the screen, swipe your finger to the right until you see audio controls and circular arrow pointing clockwise.
- Touch the circular arrow to lock the screen. A lock icon will appear in the middle.
Repeat steps 1-3 to disable orientation locking.

You are the man Nelson!
Thank you for the info. A friend locked hers like that and we called a AT&T corporate store and Apple support with no help from either. Again thank u.
Thanks so much you the shit bra
Thank you! I accidentally locked my orientation and didn’t know what that symbol meant. Would be nice if apple had a book. Why do they not make manuals?? So annoying!
Thank-you sooo much.. I have a 14S and that has been locked for days and no one has been able to help me..