Apple iPod touch Guide de l'utilisateur télécharger pdf (Page 33)

Important: If iPod touch is very low on power, it may display one of the following images,

indicating that iPod touch needs to charge for up to ten minutes before you can use it. If

iPod touch is extremely low on power, the display may be blank for up to two minutes before one

of the low-battery images appears.

Maximizing battery life

iPod touch uses lithium-ion batteries. To learn more about how to maximize the battery life of

iPod touch, go to www.apple.com/batteries.

Replacing the battery

Rechargeable batteries have a limited number of charge cycles and may eventually need to be

replaced. The iPod touch battery isn’t user replaceable; it can be replaced only by an authorized

service provider. For more information, go to www.apple.com/batteries/replacements.html.

Security features

Security features help protect the information on iPod touch from being accessed by others.

Passcodes and data protection

You can set a passcode that you must enter each time you turn on or wake up iPod touch.

Set a passcode: Choose Settings > General > Passcode Lock and enter a 4-digit passcode.

iPod touch then requires you to enter the passcode to unlock it or to display the passcode

lock settings.

Setting a passcode turns on data protection (iPod touch 3rd generation or later). Data protection

uses your passcode as the key for encrypting mail messages and their attachments stored on

iPod touch. (Some apps available from the App Store may also use data protection.) A notice at

the bottom of the Passcode Lock screen in Settings shows whether data protection is enabled.

To increase iPod touch security, turn o Simple Passcode and use a longer passcode with a

combination of numbers, letters, punctuation, and special characters. See “Passcode Lock” on

page 104.

Important: On an iPod touch 3rd generation that didn’t ship with iOS 4 or later, you must also

restore iOS software to enable data protection. See “Updating iPod touch” on page 137.

Find My iPod

Find My iPod helps you locate your iPod touch using the free Find My iPhone app on

another iPhone, iPad, or iPod touch, or using a Mac or PC with a web browser signed in to

www.icloud.com or www.me.com. Find My iPod includes:

Â Locate iPod touch on a map: View the approximate location of your iPod touch on a

full-screen map.

Â Display a Message or Play a Sound: Lets you compose a message that will appear on your

iPod touch screen, or play a sound at full volume for two minutes.

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Apple iPod touch Guide de l'utilisateur Page 33