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iPhone THE MISSING MANUAL - Cdn.oreilly.com

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6<br />

Sleep Switch (On/Off)<br />

On the top edge of the <strong>iPhone</strong>, you’ll find a black plastic button shaped like<br />

a dash.<br />

This button has several functions.<br />

•<br />

•<br />

Sleep/Wake. Tapping it once puts the <strong>iPhone</strong> to sleep—that is, into<br />

Standby mode, ready for in<strong>com</strong>ing calls but consuming very little power.<br />

Tapping it again turns on the screen, so it’s ready for action.<br />

On/Off. This switch can also turn the <strong>iPhone</strong> off <strong>com</strong>pletely, so it consumes<br />

no power at all; in<strong>com</strong>ing calls get dumped into voicemail (page<br />

53). You might turn the <strong>iPhone</strong> off whenever you’re not going to use it for<br />

a few days.<br />

To turn the <strong>iPhone</strong> off, press the Sleep/Wake switch for three seconds.<br />

The screen changes to say, “slide to power off.” Confirm your decision by<br />

placing a fingertip on the red right-pointing arrow and sliding to the<br />

right. The device shuts off <strong>com</strong>pletely.<br />

Chapter 1<br />

Headphone<br />

SIM Card tray<br />

Sleep/Wake

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