Sony Ericsson C6916 (T-Mobile) User's Guide Page 110
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Locking and protecting your device
IMEI number
Every device has a unique IMEI (International Mobile Equipment Identity) number.
You should keep a copy of this number. If your device is stolen, your network provider
can use your IMEI number to stop the device from accessing the network in your
country.
To view your IMEI number in the device
1 From your Home screen, tap .
2 Find and tap Settings > About phone > Status.
3 Scroll to IMEI to view the IMEI number.
SIM card protection
You can lock and unlock each SIM card that you use in your device with a PIN
(Personal Identity Number). When a SIM card is locked, the subscription linked to the
card is protected.
If you enter the PIN incorrectly more times than the maximum number of attempts
allowed, your SIM card will become blocked. You then need to enter your PUK
(Personal Unblocking Key) and a new PIN. Your PIN and PUK are supplied by your
network operator.
To lock a SIM card
1 From the Home screen, tap .
2 Find and tap Settings > Security > Set up SIM card lock > Lock SIM card.
3 Enter the SIM card PIN and tap OK.
To change the SIM card PIN
1 From the Home screen, tap . .
2 Find and tap Settings > Security > Set up SIM card lock.
3 Tap Change SIM PIN.
4 Enter the old SIM card PIN and tap OK.
5 Enter the new SIM card PIN and tap OK.
6 Retype the new SIM card PIN and tap OK.
To change the SIM card PIN2
1 From the Home screen, tap .
2 Find and tap Settings > Call settings
3 Tap Fixed dialing numbers > Change PIN2.
4 Enter the old SIM card PIN2 and tap OK.
5 Enter the new SIM card PIN2 and tap OK.
6 Confirm the new PIN2 and tap OK.
To unlock a locked SIM card
1 Enter the PUK code and tap .
2 Enter a new PIN code and tap .
3 Re-enter the new PIN code and tap .
If you enter an incorrect PUK code too many times, the SIM card becomes locked. If this
happens, contact your service provider to get a new SIM card.
Setting a screen lock
There are several ways to lock the screen on your device. For example, you can use
the Face Unlock feature, which uses a picture of your face to unlock the screen. You
can also set a screen unlock pattern, a number-based PIN lock, or a text-based
password.
110
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- User guide 1
- Contents 2
- Getting started 6
- Assembly 7
- Charging your device 10
- Learning the basics 11
- Pinching and spreading 12
- Home screen 13
- Application screen 14
- Navigating applications 15
- Small apps 16
- Lock screen 18
- Shortcuts and folders 18
- Background and themes 19
- Status and notifications 20
- Icons in the status bar 20
- Application overview 22
- Downloading applications 24
- Internet and networks 25
- Wi-Fi® settings 27
- Controlling data usage 29
- Selecting cellular networks 30
- Basic settings 32
- Date and time 33
- X-Reality™ for mobile 33
- Screen settings 34
- Language settings 34
- Airplane mode 34
- Enhancing the sound output 34
- Typing text 36
- Phonepad 37
- Editing text 38
- Making calls 40
- Receiving calls 41
- Ongoing calls 41
- Using the call log 42
- Forwarding calls 42
- Restricting calls 43
- Multiple calls 43
- Conference calls 43
- Voicemail 44
- Visual Voicemail 44
- Emergency calls 44
- Wi-Fi Calling 45
- Contacts 46
- Adding and editing contacts 48
- Favorites and groups 49
- Sending contact information 49
- Backing up contacts 50
- Messaging and chat 51
- Organizing your messages 52
- Calling from a message 53
- Messaging settings 53
- Setting up email 55
- Email preview pane 57
- Email account settings 58
- To learn more about Gmail™ 59
- Socialife™ 60
- Listening to music 61
- WALKMAN home screen 62
- Playlists 63
- Sharing music 64
- Enhancing the sound 65
- Visualizer 65
- 1 View TrackID options 66
- 2 View current music charts 66
- 4 Record and identify music 66
- FM radio 68
- Favorite radio channels 69
- Sound settings 69
- Face detection 71
- General camera settings 72
- Still camera settings 74
- Smile Shutter™ 75
- Focus mode 75
- Self timer 75
- Metering 76
- Image stabilizer 76
- Face registration 76
- Video camera settings 77
- Viewing photos and videos 79
- Photo albums 82
- Viewing your photos on a map 83
- Movies application 85
- Connecting your 86
- Managing video content 87
- Video Unlimited service 87
- Connectivity 88
- NFC detection area 91
- Bluetooth 92
- wireless technology 92
- Naming your device 93
- technology 94
- PC Companion 96
- Media Go™ 97
- Sony™ Bridge for Mac 97
- Screen mirroring 98
- Using a headset 99
- Smart Connect 99
- Managing devices 100
- Synchronizing with Facebook™ 102
- Maps and locations 104
- Google Maps™ 105
- Getting directions 105
- 2 Find and tap Navigation 106
- Calendar and alarm clock 107
- IMEI number 110
- SIM card protection 110
- Setting a screen lock 110
- Support and maintenance 113
- Finding your device 114
- Formatting the memory card 115
- Managing backup records 116
- Resetting and restarting 117
- Battery and power management 117
- Using STAMINA mode 118
- Hearing Aid Compatibility 119
- Support application 120
- Accessories 120
- Usage info 120
- Recycling your device 120
- Important information 121
- for more information 122
- Legal information 123
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