What is the symbol that is near the battery life that is a lock with a circle around it?
Portrait orientation lock. To turn off, doublt-tap the home button, swipe the list at the bottom to the right, tap the left-most icon (left of the music controls).
The left most icon was the speaker icon?
The left most icon was the speaker ?
How do I unlock it?
This will unlock the portrait orientation lock and allow you screen to rotate sideways again (to landscape position).
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