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iPhone THE MISSING MANUAL - Cdn.oreilly.com

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252<br />

•<br />

•<br />

•<br />

•<br />

Don’t kid around with this passcode. it’s a much more serious deal than the iPod<br />

passcode. if you forget the <strong>iPhone</strong> code, you’ll have to restore your <strong>iPhone</strong> (page<br />

271), which wipes out everything on it. You’ve still got most of the data on your<br />

<strong>com</strong>puter, of course (music, video, contacts, calendar), but you may lose text<br />

messages, mail, and so on.<br />

Network. Tap Network to open a screen containing two items.<br />

One is VPN, which stands for virtual private networking. In the corporate<br />

world, tele<strong>com</strong>muters often use VPN systems to “dial in” to their<br />

work <strong>com</strong>puters from home. That, of course, involves getting through<br />

the <strong>com</strong>pany’s firewall and other security measures. A VPN is a secure,<br />

encrypted tunnel that carries the data from one <strong>com</strong>puter, across the<br />

Internet, and into the <strong>com</strong>pany’s <strong>com</strong>puters. Page 158 has the details for<br />

setting this up.<br />

The second item on the Network page is Wi-Fi, which is an exact duplicate<br />

of the Wi-Fi controls described on page 243.<br />

Bluetooth. There’s nothing on this screen at first except an On/Off<br />

switch for the <strong>iPhone</strong>’s Bluetooth transmitter, which is required to <strong>com</strong>municate<br />

with a Bluetooth earpiece or the hands-free Bluetooth system<br />

in a car. When you turn the switch on, you’re offered the chance to pair<br />

the <strong>iPhone</strong> with other Bluetooth equipment. See page 68 for step-bystep<br />

instructions.<br />

Keyboard. Here, you can turn Auto-Capitalization on or off. That’s when<br />

you’re entering text and the <strong>iPhone</strong> thoughtfully capitalizes the first letter<br />

of every new sentence for you.<br />

Enable Caps Lock is the on/off switch for the Caps Lock feature, in which<br />

a fast double-tap on the Shift key turns on Caps Lock (page 21).<br />

Reset. On the Reset screen, you’ll find four ways to erase your tracks.<br />

Reset All Settings takes all of the <strong>iPhone</strong>’s settings back to the way they<br />

were when it came from Apple. Your data, music, and videos remain<br />

in place, but the settings you’ve changed all go back to their factory<br />

settings.<br />

Erase All Content and Settings is the one you want when you sell your<br />

<strong>iPhone</strong>, or when you’re captured by the enemy and want to make sure<br />

they will learn nothing from you or your <strong>iPhone</strong>.<br />

Reset Keyboard Dictionary has to do with the <strong>iPhone</strong>’s autocorrection<br />

feature, which kicks in whenever you’re trying to input text (page 25).<br />

Chapter 13

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