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The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition
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The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition

by Scott Kelby, Terry White
February 2012
Beginner to intermediate
368 pages
9h 22m
English
Peachpit Press
Content preview from The iPhone Book: Covers iPhone 4S, iPhone 4, and iPhone 3GS, Fifth Edition

Did Your App Crash?

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Not all apps are created equally, so you may have an app crash now and then. The good thing is that the iPhone operating system (iOS) is based upon Mac OS X, which is really reliable. So even if an app crashes, it usually won’t affect the rest of the iPhone and will simply return you to the Home screen. However, if the app just appears frozen and not responding, then you can manually force quit it by pressing-and-holding the Sleep/Wake button at the top of the iPhone until the red button with “Slide to Power Off” appears. Then press-and-hold the Home button on the front of the iPhone for at least six seconds, and you should ...

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Publisher Resources

ISBN: 9780133016529Purchase book