AT&T Z990 Protecting Your SIM Card with a PIN, Setting up Credential Storage, Tap Change SIM PIN

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Sorting Out Your Phone Settings

Disabling Screen Unlock Security

If you have created an unlock pattern, PIN or password, you can disable it.

1.Press the Menu Key > Settings > Location & security > Change screen lock.

2.Draw the screen unlock pattern or enter the PIN/ password you have created.

3.Tap None.

Protecting Your SIM Card with a PIN

Every SIM card comes with a PIN. The initial PIN is provided by your mobile phone carrier. It’s best to lock your SIM card as soon as you can.

1.Press the Menu Key > Settings > Location & security > Set up SIM card lock.

2.Tap the Lock SIM card check box.

3.Enter the PIN you’ve been given and tap OK.

Changing Your SIM Card PIN

You can change the PIN you’ve been given to one easier for you to remember and harder for others to guess.

1.Press the Menu Key > Settings > Location & security > Set up SIM card lock.

2.Make sure you already checked the Lock SIM card check box.

3.Tap Change SIM PIN.

4.Enter the old PIN and tap OK.

5.Enter your new PIN and tap OK.

6.Enter the new PIN again and tap OK.

Restoring a Locked SIM Card

Put all your confidential passwords in a safe place for future use. If you enter the wrong SIM card PIN more times than allowed, your SIM card will be locked and you cannot access the mobile phone network. Contact your operator for a PIN Unlock Key (PUK) to restore the SIM card.

Setting up Credential Storage

This allows you to select applications to access secure certificates and other credentials.

Enabling Secure Credentials

1.Press the Menu Key > Settings > Location & security.

2.Tap Set password and create a password for the credential storage.

3.Tap OK.

TIP: You can also install encrypted certificates from your microSD card by tapping Install from SD card.

Deleting Secure Credentials

1.Press the Menu Key > Settings > Location & security.

2.Tap Clear storage to clear credentials.

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Contents AT&T Avail Legal Information Table of Contents Table of Contents Installing the SIM/microSD Card and Battery Getting StartedStarting Up Charging the Battery Switching Your Phone On/OffGetting Started Removing the Battery SIM/microSD Card Setting Up Your Phone for the First TimeGetting Started Switching to Sleep Mode Display Screen timeoutGetting Around Waking up Your PhoneGetting to Know Your Phone Getting StartedHeadset Jack Earpiece Touch ScreenGetting Started Key Functions Getting Started Home Screen Extended Home ScreenAdding Items to Your Home Screen Removing Items from Your Home ScreenIndicator What it means Getting Started Status and Notification IconsContent downloaded and installed successfully Getting Started Using the Notification Panel Re-open Recently Used ApplicationsTIP You can also open the Notification Panel By pressing the Menu Key Notifications from the Home ScreenHow to Make Calls How to Receive CallsPhone Calls Adjusting Your Call Settings Contacts Importing Exporting ContactsSharing Contacts Information Contacts Adding a Contact to Favorites Searching for a ContactCreating a New Group Tap at the bottom of the Contacts ScreenEntering Text Android KeyboardXT9 Text Input KeyboardChoosing Touch Input Settings Using the toolbarKey Settings Language & keyboard Entering TextChanging Message Settings MessagingMessage Box Sending a MessageSignature settings MessagingAdd signature Add the signature to all outgoing messages Creating an Email Account Receiving EmailsComposing and Sending an Email Press the Menu Key Compose from the Inbox ScreenEmail Settings Replying to or Forwarding an EmailDeleting an Account Turning on Wi-Fi Connecting to a Wi-Fi NetworkChecking the Wi-Fi Network Status Getting Connected to the InternetUsing the Phone as a Modem Using the Phone as a Wi-Fi HotspotGetting Connected to the Internet Enabling the Phone as a ModemGetting Connected to the Internet Enabling the Wi-Fi Hotspot Disabling the Wi-Fi HotspotUsing Bookmarks Changing Browser SettingsBrowsing the Internet Browsing OptionsBluetooth Status barMaking the Most of Multimedia Taking Pictures with Your CameraShooting Video with Your Camcorder Playing Your MusicSetting a Song as Ringtone Playing Your VideosMaking the Most of Multimedia Creating PlaylistsOpening Your Gallery Making Memorable MemosPress the Home Key Sound Recorder Home Key Music Playlists My recordingsUsing Your Google Applications Using Google CalendarUsing Google Talk GmailUsing Your Google Applications Changing Your Online Status Google PlacesGoogle Latitude Starting a ChatSorting Out Your Phone Settings Setting Time and DateChanging Display Settings Sound SettingsMobile Network Services Security SettingsSorting Out Your Phone Settings Protecting Your Phone with a PIN or PasswordSetting up Credential Storage Protecting Your SIM Card with a PINChanging Your SIM Card PIN Tap Change SIM PINPrivacy Reset to Factory Settings How to Install an ApplicationPress the Menu Key Settings Storage Managing Your Device MemoryManaging Other Settings Other Applications For Your Safety General SafetyFor Your Safety Radio Frequency RF EnergyFCC Compliance FCC ID Q78-Z990Road Safety Product HandlingDriving Operating MachineryElectrostatic Discharge ESD AntennaSmall Children Normal Use PositionElectrical Safety Interference Explosive Environments Gas Stations Explosive AtmospheresBlasting Caps and Areas Specifications Support microSD card, max. capacity 32GBWarranty How To Get Warranty Service Other Warranty ProgramWarranty