Apple IPhone IOS 31 User Guide

Deleting Applications
You can delete applications you’ve installed from the App Store. If you delete an 
application, data associated with the application will no longer be available to iPhone, 
unless you reinstall the application and restore its data from a backup.
You can reinstall an application and restore its data as long as you backed up iPhone 
with iTunes on your computer. (If you try to delete an application that hasn’t been 
backed up to your computer, an alert appears.) To retrieve the...

Updating Applications
Whenever you access the App Store, it checks for updates to applications you’ve 
installed. The App Store also automatically checks for updates every week. The App 
Store icon shows the total number of application updates available.
If an update is available and you access the App Store, the Updates screen appears 
immediately. Application updates are downloaded and automatically installed when 
you choose to update them. Application upgrades are new releases that can be 
purchased...

Compass
22
Getting Compass Readings
The built-in compass (iPhone 3GS only) shows which direction you’re facing, along 
with the geographical coordinates of your current location. You can choose magnetic 
north, or have Compass adjust the declination to show true north.
Important:  The accuracy of digital compass headings may be negatively affected by 
magnetic or other environmental interference, including interference caused by the 
close proximity of the magnets contained in the iPhone earbuds. The...

See which way you’re facing:  Hold iPhone level to the ground. The compass needle 
rotates to point north. Your current direction appears at the top of the screen.   
The coordinates of your current location are displayed at the bottom of the screen.
Switch between true north and magnetic north:   Tap  and tap the setting  
you want.
Compass and Maps
The  icon at the bottom of the Compass screen lets you find your current location 
in Maps. Maps also takes advantage of the built-in compass to show which...

Show which way you’re facing:  In Maps, tap  again. ( The icon changes to .)  
The angle shows the accuracy of the compass reading—the smaller the angle,  
the greater the accuracy.
See “Finding and Viewing Locations”  on page 11 4 .
17 5Chapter 22    Compass 

Contacts
23
About Contacts
Contact makes it easy to call, email, and text your friends and associates with iPhone. 
You can add contacts directly on iPhone, or sync contacts from applications on your 
computer, or with your MobileMe, Microsoft Exchange, Google, or Yahoo! accounts.
You can open Contacts directly from the Home screen, or from within the Phone 
application.
Adding Contacts
You can add contacts to iPhone in the following ways:In iTunes, sync contacts from Google or Yahoo!, or sync with...

Set up an LDAP account:
 1 In Settings, tap “Mail Contacts, Calendars,” then tap Add Account.
 2 Tap Other, then tap Add LDAP Account.
 3 Enter your LDAP account information and tap Next to verify the account.
 4 Tap Save.
When you set up an LDAP account, you can view and search for contacts on your 
company or organization’s LDAP server. The server appears as a new group in Contacts. 
Since LDAP contacts aren’t downloaded to iPhone, you must have an Internet 
connection to view them. Check with your...

Managing Contacts on iPhone
Add a contact on iPhone:  Tap Contacts and tap .
Delete a contactIn Contacts, choose a contact, than tap Edit. Scroll 
down and tap Delete Contact.
Add a contact from the keypad Tap Keypad, enter a number, then tap 
. 
Tap Create New Contact and enter the caller’s 
information, or tap “Add to Existing Contact” and 
choose a contact.
Edit contact information In Contacts, choose a contact, then tap Edit. To 
add an item, tap 
. To delete an item, tap .
Enter a pause in a...

Use a contact’s info screen:  Tap Contacts and choose a contact. Then tap an item.
Visit the websiteCall
Send an email
Send a text message Add a phone 
number to your 
favorites list
See a map and 
get directions
Note:
  The Contacts screen shown here includes the buttons across the bottom that 
are available when you view Contacts from within the Phone application. These 
buttons don’t appear if you open Contacts directly from the Home screen.
A star next to a phone number means the number is in your...

Nike + iPod
24
Activating Nike + iPod
When activated in Settings, the Nike + iPod application appears on the Home screen 
(iPhone 3GS only). With a Nike + iPod Sensor (sold separately), the Nike + iPod 
application provides audible feedback on your speed, distance, time elapsed, and 
calories burned during a running or walking workout. When iPhone is connected to 
iTunes on your computer, you can send your workout information to Nikeplus.com, 
where you can track your progress, set goals, and participate...