Locate your lost iPhone
If you’ve lost your iPhone, Find My iPhone can help you locate it on a map and protect its data. Display a message on its screen, remotely set a passcode lock, or initiate a remote wipe to delete your data.
Lock the screen orientation
Double-click the Home button to bring up the multitasking interface, then swipe from left to right. Now tap the portrait orientation lock once to turn it on and again to turn it off.
Scrub through audio and video
When you’re watching a video or listening to music or a podcast, the scrubber bar lets you skip to any point along the timeline. You can adjust the scrub rate from high-speed to fine scrubbing by sliding your finger down as you drag the playhead along the scrubber bar.
Tap to focus the camera
While shooting video or photos, tap the screen where you want to focus. iPhone will also adjust the exposure and white balance automatically.