Apple iPhone OS 3.1 User Manual Page 173
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- Table of contents
- TROUBLESHOOTING
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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 aected by
magnetic or other environmental interference, including interference caused by the
close proximity of the magnets contained in the iPhone earbuds. The digital compass
should only be used for basic navigation assistance and should not be solely relied on
to determine precise locations, proximity, distance, or direction.
The compass needs to be calibrated the rst time you use it, and may need to be
calibrated occasionally after that. iPhone alerts you whenever calibration is needed.
Calibrate iPhone: Wave iPhone in a gure eight. You may be asked to move away
from a source of interference.
173
- User Guide 1
- Contents 2
- Chapter 16: Notes 5
- Chapter 17: Clock 5
- Chapter 18: Calculator 5
- Chapter 19: Settings 5
- Chapter 20: iTunes Store 5
- Appendix B: Other Resources 7
- Getting Started 9
- Activating iPhone 10
- Installing the SIM Card 10
- Registering iPhone 10
- About Syncing 11
- Syncing with iTunes 12
- Chapter 1 Getting Started 13
- Preventing Automatic Syncing 15
- Setting Up Accounts 16
- Push Accounts 18
- Status Icons 21
- Home Screen 23
- Customizing the Home Screen 25
- Sleep/Wake Button 26
- Volume Buttons 27
- Touchscreen 28
- Scrolling 29
- Zooming In or Out 30
- Onscreen Keyboard 31
- Dictionary 33
- Chapter 2 Basics 34
- International Keyboards 35
- Touchpad 36
- Searching 37
- Voice Control 38
- Stereo Headset 39
- Connecting to the Internet 40
- Joining a Wi-Fi Network 41
- Cellular Data Network Access 41
- VPN Access 42
- Using iPhone as a Modem 42
- Charging the Battery 43
- Maximizing Battery Life 44
- Replacing the Battery 44
- Security Features 45
- Cleaning iPhone 46
- Phone Calls 47
- Voice Dialing 48
- Receiving Calls 49
- While On a Call 49
- Second Calls 50
- Conference Calls 50
- Visual Voicemail 51
- Setting Up Voicemail 52
- Checking Voicemail 52
- Deleting Messages 53
- Getting Contact Information 53
- Favorites 54
- Bluetooth Devices 55
- International Calls 56
- Chapter 3 Phone 57
- Setting Up Email Accounts 59
- Sending Email 59
- Checking and Reading Email 60
- Number of unread 61
- Tap to see all your 61
- Unread messages 61
- Tap attachment 62
- Searching Email 64
- Organizing Email 64
- Chapter 4 Mail 65
- Viewing Webpages 66
- Zooming and Scrolling 67
- Navigating Webpages 67
- Opening Multiple Pages 68
- Searching the Web 69
- Bookmarks 69
- Web Clips 70
- Syncing Content from iTunes 71
- Manually Managing Content 72
- Music and Other Audio 73
- Controlling Song Playback 74
- Additional Song Controls 75
- Scrubber bar 76
- Playhead 76
- Playback 76
- 30-second repeatEmail 76
- Using Voice Control with iPod 77
- Searching Music 79
- Using Genius on iPhone 79
- Chapter 6 iPod 80
- Making On-The-Go Playlists 81
- Playing Videos 82
- Searching Video 83
- Watching Rented Movies 83
- Setting a Sleep Timer 84
- Chapter 7 Messages 87
- Sending Voice Memos 88
- Editing Conversations 89
- Managing Previews and Alerts 90
- Viewing Your Calendar 92
- Searching Calendars 93
- Delete Event 94
- Chapter 8 Calendar 94
- About Photos 97
- Viewing Photos and Videos 98
- Slideshows 99
- Sharing Photos and Videos 100
- Publishing Videos to YouTube 101
- Wallpaper 102
- About Camera 103
- Chapter 10 Camera 104
- Trimming Videos 105
- Finding and Viewing Videos 107
- Controlling Video Playback 108
- Managing Videos 109
- Getting More Information 109
- Changing the Browse Buttons 111
- Sending Videos to YouTube 111
- Viewing Stock Quotes 112
- Finding and Viewing Locations 114
- Chapter 13 Maps 116
- Bookmarking Locations 119
- Getting Directions 119
- Showing Trac Conditions 121
- Viewing Weather Summaries 123
- Chapter 14 Weather 124
- Voice Memos 125
- Listening to Voice Memos 126
- Managing Voice Memos 127
- Trimming Voice Memos 128
- Sharing Voice Memos 128
- Syncing Voice Memos 129
- Writing and Reading Notes 130
- Searching Notes 131
- Emailing Notes 131
- Syncing Notes 131
- World Clocks 132
- Stopwatch 133
- Chapter 17 Clock 134
- Calculator 135
- Scientic Calculator Keys 136
- Settings 138
- Chapter 19 Settings 139
- Notications 140
- Brightness 142
- Bluetooth 144
- Location Services 144
- Auto-Lock 145
- Passcode Lock 145
- Restrictions 146
- Date and Time 147
- Keyboard 148
- International 148
- Accessibility 149
- Resetting iPhone 149
- Mail, Contacts, Calendars 150
- Fetch New Data 151
- Contacts 153
- Calendar 153
- Calling from Abroad 154
- Call Forwarding 154
- Call Waiting 154
- Show My Caller ID 154
- Locking Your SIM Card 155
- Security 156
- Messages 157
- Nike + iPod 159
- About the iTunes Store 160
- Chapter 20 iTunes Store 161
- Purchasing Ringtones 162
- Purchasing or Renting Videos 163
- Checking Download Status 165
- Syncing Purchased Content 165
- Viewing Account Information 166
- Verifying Purchases 166
- App Store 167
- Chapter 21 App Store 168
- Info Screen 169
- Downloading Applications 170
- Deleting Applications 171
- Writing Reviews 171
- Updating Applications 172
- Getting Compass Readings 173
- Compass and Maps 174
- Chapter 22 Compass 175
- Searching Contacts 177
- Managing Contacts on iPhone 178
- Chapter 23 Contacts 179
- Chapter 24 Nike + iPod 181
- VoiceOver 183
- VoiceOver Gestures 184
- Rotor Control 185
- Chapter 25 Accessibility 186
- Using VoiceOver 187
- Entering and Editing Text 188
- Using Maps 189
- White on Black 190
- Mono Audio 190
- Speak Auto-text 190
- Triple-click Home 191
- Troubleshooting 193
- Appendix A Troubleshooting 194
- Syncing Doesn’t Work 195
- Phone and Voicemail 196
- Can’t Send Email 198
- Can’t Receive Email 198
- Email Attachment Won’t Open 199
- Sound, Music, and Video 200
- Removing the SIM Card 201
- Backing Up iPhone 202
- Restoring from a Backup 203
- Removing a Backup 203
- Other Resources 205
- Apple and the Environment 207
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