ZTE Z668C User Manual

Z668C

User’s Manual

Edition Time: March 2014 Manual No.: Z8090161500MT

Table of Contents

About This Manual

Thank you for choosing this ZTE mobile device. In order to keep your device in its best condition, please read this manual and keep it for future reference.

All rights reserved. No part of this publication may be quoted, reproduced, translated or used in any form or by any means, electronic or mechanical, including photocopying and microfilm, without the prior written permission of ZTE Corporation.

Notice

ZTE Corporation reserves the right to make modifications on print errors or update specifications in this manual with-out prior notice. This manual has been designed with the utmost care to ensure the accuracy of its content. However, all statements, information and recommendations contained therein do not constitute a warranty of any kind, either expressed or implied. Please refer to chapter For Your Safety to be sure to use your phone properly and safely. We offer self-service for our smart terminal device users. Please visit the ZTE official website (at www.ztedevice.com) for more information on self-service and supported product models. Information on the website takes precedence.

Disclaimer

ZTE Corporation expressly disclaims any liability for faults and damages caused by unauthorized modifications of the software. Images and screenshots used in this manual may differ from the actual product. Content in this manual may differ from the actual product or software.

Trademarks

ZTE and the ZTE logos are trademarks of ZTE Corporation. Google and Android are trademarks of Google, Inc. The Bluetooth® trademark and logos are owned by the Bluetooth SIG, Inc. and any use of such trademarks by ZTE Corporation is under license. microSDHC Logo is a trademark of SD-3C, LCC. Other trademarks and trade names are the property of their respective owners.

Table of Contents

Qualcomm Snapdragon™ processors are products of Qualcomm Technologies, Inc.®

Qualcomm and Snapdragon are trademarks of Qualcomm Incorporated, registered in the United States and other countries. Used with permission.

Table of Contents

Installing the Battery and a microSDHC Card .................................................... 1

Charging the Battery ........................................................................................... 2

To lock the screen and keys: ............................................................................ 3

To unlock the screen and keys: ........................................................................ 3

Using the Touch Screen ...................................................................................... 3

Getting to Know Your Phone .............................................................................. 5

Key Functions .................................................................................................. 6

Home Screen ................................................................................................... 7

Arrange & work with apps ................................................................................ 7

Changing the System Language......................................................................... 8

Protecting Your Phone With Screen Locks ........................................................ 9

Before turning on encryption, prepare as follows: ........................................... 10

When you’re ready to turn on encryption: ....................................................... 10

Monitoring the Phone Status ............................................................................ 12

Managing Notifications ..................................................................................... 13

Opening/Closing the Notification Panel .......................................................... 14

Responding to or Removing a Notification ................................................... 14

Managing Shortcuts and Widgets .................................................................... 14

Adding Shortcuts and Widgets ....................................................................... 14

Moving Shortcuts or Widgets ......................................................................... 14

Removing Shortcuts or Widgets ..................................................................... 14

Table of Contents

Adjusting Widget Size .................................................................................... 14

Organizing With Folders .................................................................................... 15

Creating a Folder ........................................................................................... 15

Renaming a Folder ......................................................................................... 15

Adding Shortcuts to a Folder .......................................................................... 15

Removing Shortcuts From a Folder ................................................................ 15

Rearranging the Favorites Tray ........................................................................ 15

Removing Items From the Favorites Tray ....................................................... 15

Adding Items to the Favorites Tray ................................................................. 15

Entering Text ...................................................................................................... 16

Changing Input Method .................................................................................. 16

Android Keyboard .......................................................................................... 16

Google Voice Typing ...................................................................................... 17

Touch Input Settings ...................................................................................... 17

Opening and Switching Apps ............................................................................ 17

Opening an App ............................................................................................. 17

Switching Between Recently Opened Apps .................................................... 18

Connecting to Mobile Networks ........................................................................ 19

Enabling or Disabling Data Access ................................................................. 19

Enable Always-on Data Access ...................................................................... 19

Getting Data Services When Roaming ............................................................ 19

Connecting to Wi-Fi ........................................................................................... 19

Turning Wi-Fi On and Connecting to a Wi-Fi Network ..................................... 19

Getting Notified of Open Networks .................................................................. 19

Table of Contents

Adding a Wi-Fi Network ................................................................................. 20

Forgetting a Wi-Fi Network ............................................................................. 20

Adjusting Advanced Wi-Fi Settings ................................................................. 20

Connecting to Bluetooth Devices ..................................................................... 20

Bluetooth

Turning

Changing the Device Name ........................................................................... 21

Pairing With Another Bluetooth Device ............................................................ 21

Sending Data via

Connecting Your Phone to a Computer via USB ............................................ 22

Connecting with Windows Media® Player ..................................................... 22

Disconnecting Your Phone From the Computer ........................................... 22

Removing the microSDHC Card From Your Phone ........................................ 22

Erasing the microSDHC Card......................................................................... 23

Connecting to Virtual Private Networks ........................................................... 23

Adding a VPN .................................................................................................... 23

Connecting to a VPN ..................................................................................... 23

Modifying a VPN ............................................................................................ 24

Placing and Ending Calls .................................................................................. 25

Placing a Call by Dialing ................................................................................ 25

Ending a Call ................................................................................................. 25

Answering a Call ............................................................................................ 25

Rejecting a Call.............................................................................................. 25

Working With the Call Log .............................................................................. 25

Placing a Call From the Call Log .................................................................... 25

Adding a Call Log Number as a Contact ......................................................... 26

On/Off ............................................................................... 20

Bluetooth

............................................................................ 21

Table of Contents

Taking Other Actions on a Call Log Entry ..................................................... 26

Deleting the Call Log ...................................................................................... 26

Calling a Contact ............................................................................................ 26

Calling a Favorite Contact .............................................................................. 26

Switching Between Current Calls .................................................................... 27

Setting Up a Conference Call ......................................................................... 28

Adjusting Your Call Settings ............................................................................. 28

Editing Quick Response to Rejected Callers ................................................... 28

Setting Up Voicemail ...................................................................................... 28

Setting Up TTY Mode ..................................................................................... 28

Setting DTMF Tones ...................................................................................... 28

Setting Speed Dials ........................................................................................ 28

Forwarding Incoming Calls ............................................................................. 29

Other Options ................................................................................................. 29

Internet Call Settings ......................................................................................... 29

Adding an Internet Calling Account ................................................................. 29

Configuring Your Phone to Receive Internet Calls .......................................... 29

Checking Contact Details .................................................................................. 31

Importing Contacts From the Phone Storage .................................................. 31

Importing Contacts From the microSDHC Card .............................................. 32

Exporting Contacts to the Phone Storage ....................................................... 32

Exporting Contacts to the microSDHC Card ................................................... 32

Sharing Contacts ............................................................................................ 32

Working With Favorite Contacts ....................................................................... 32

Adding a Contact to Favorites......................................................................... 32

Table of Contents

Removing a Contact From Favorites .............................................................. 32

Viewing Your Contact Groups ........................................................................ 33

Setting Up a New Group ................................................................................ 33

Deleting a Group ............................................................................................ 33

Editing a Group .............................................................................................. 33

Editing Contact Details ................................................................................... 33

Setting a Ringtone for a Contact .................................................................... 33

Deleting a Contact ......................................................................................... 34

Deleting Several Contacts .............................................................................. 34

Joining Contacts ............................................................................................ 34

Separating Contact Information ...................................................................... 34

Adding or Removing Accounts ......................................................................... 36

Adding an Account ......................................................................................... 36

Removing an Account .................................................................................... 36

Configuring Account Sync ................................................................................ 36

Configuring Auto Sync Settings ...................................................................... 36

Syncing Manually ........................................................................................... 36

Changing an Account’s Sync Settings ............................................................ 36

Setting Up the First Email Account .................................................................. 38

Replying to or Forwarding an Email ................................................................ 38

Marking an Email as Unread .......................................................................... 38

Deleting an Email ........................................................................................... 38

Writing and Sending an Email .......................................................................... 39

Adding a Signature to Your Emails .................................................................. 39

Adding and Editing Email Accounts................................................................. 39

Table of Contents

Adding an Email Account ............................................................................... 39

Editing an Email Account ................................................................................ 39

Removing an Email Account ........................................................................... 40

Changing General Email Settings ..................................................................... 40

Opening Your Gmail Inbox ................................................................................ 41

Switching Accounts ........................................................................................ 41

Writing and Sending a Message........................................................................ 41

Adding a Signature to Your Gmail Messages ................................................... 41

Replying to or Forwarding a Message .............................................................. 42

Working With Received Attachments ............................................................... 42

Searching for Messages .................................................................................... 42

Working With Labels ......................................................................................... 42

Adding or Changing a Label ........................................................................... 43

Adding Stars to Messages .............................................................................. 43

Viewing Messages by Label ........................................................................... 43

Changing Gmail Settings................................................................................... 43

Opening the Messaging Screen ........................................................................ 44

Sending a Text Message ................................................................................... 44

Sending a Multimedia Message ........................................................................ 44

Replying to a Message ...................................................................................... 44

Table of Contents

Forwarding a Message ...................................................................................... 45

Viewing Details About a Message .................................................................... 45

Deleting Messages or Threads ......................................................................... 45

Deleting Messages in a Thread ...................................................................... 45

Delete Message Threads ............................................................................... 45

Changing Message Settings ............................................................................. 45

Viewing Your Calendars and Events ................................................................ 46

Selecting Visible Calendars ............................................................................ 46

Changing Calendar Views .............................................................................. 46

Viewing Event Details .................................................................................... 46

Creating an Event .............................................................................................. 47

Editing or Deleting an Event ............................................................................. 47

Changing Calendar Settings ............................................................................. 47

Signing In to See Your Friends ............................................................................ 48

Adding a Friend ................................................................................................. 48

Changing Your Online Status .............................................................................. 48

Chatting With Friends ....................................................................................... 48

Switching Between Active Chats .................................................................... 48

Using Group Chat .......................................................................................... 49

Ending the Chat ............................................................................................. 49

Changing Google Talk Settings ........................................................................ 49

Table of Contents

Organizing Your Contacts ................................ ................................................. 50

Getting Updates ................................................................................................. 50

Chatting With Contacts ..................................................................................... 50

Checking Photos ............................................................................................... 50

Checking and Managing Your Profile ............................................................. 50

Opening the Browser ......................................................................................... 52

Opening a Web Page or Searching the Web................................................... 52

Setting the Homepage .................................................................................... 52

Get Information About the Current Page ...................................................... 52

Working With an Opened Page ......................................................................... 52

Using Multiple Browser Tabs ............................................................................ 53

Opening a New Browser Tab ................................ .......................................... 53

Switching Between Tabs ................................................................................ 53

Downloading Files ............................................................................................. 53

Using Bookmarks .............................................................................................. 54

Bookmarking a Web Page .............................................................................. 54

Editing a Bookmark ........................................................................................ 54

Deleting a Bookmark ...................................................................................... 54

Viewing Your Browsing History ........................................................................ 54

Changing Browser Settings .............................................................................. 54

Activating Location Services ............................................................................ 56

Table of Contents

Getting Your Location ....................................................................................... 56

Searching for a Location ................................................................................... 56

Getting Directions to Your Destination ............................................................ 56

Searching for Local Places ............................................................................... 57

Sharing Location ............................................................................................... 57

Searching With Text .......................................................................................... 59

Searching by Speaking ..................................................................................... 59

Changing Search and Voice Search Settings .................................................. 59

Capturing a Photo ............................................................................................. 60

Customize Camera Settings ............................................................................. 60

Recording a Video ............................................................................................. 61

Customizing Camcorder ................................................................................... 61

Opening the Gallery .......................................................................................... 63

Working With Albums ....................................................................................... 63

Viewing album contents ................................................................................. 63

Sharing Albums ............................................................................................. 63

Viewing Details of an Album ........................................................................... 63

Deleting Albums ............................................................................................. 63

Working With Pictures ...................................................................................... 63

Retouching Your Pictures .............................................................................. 64

Table of Contents

Sharing Your Pictures .................................................................................... 64

Working With Videos ......................................................................................... 64

Playing Videos ............................................................................................... 64

Sharing Videos ............................................................................................... 64

Copying Music Files to Your Phone ............................................................... 65

Copying From a Computer ............................................................................. 65

Downloading From the Internet ....................................................................... 65

Receiving via

Viewing Your Music Library .............................................................................. 65

Setting a Song as the Default Ringtone .......................................................... 65

Deleting a Song.............................................................................................. 66

Playing Music ..................................................................................................... 66

Managing Playlists............................................................................................. 66

Creating a Playlist .......................................................................................... 66

Adding a Song to a Playlist ............................................................................. 66

Removing a Song From a Playlist ................................ ................................... 66

Deleting or Renaming a Playlist ...................................................................... 67

Playing Your Music ............................................................................................ 68

Managing Playlists............................................................................................. 70

Create a Playlist or Add a Song to a Playlist ................................................... 70

Rearranging Songs in a Playlist ...................................................................... 70

Removing Songs From a Playlist .................................................................... 70

Renaming or Deleting a Playlist ...................................................................... 70

Bluetooth

................................................................ .................. 65

Table of Contents

Opening the Video Library ................................................................................ 71

Playing and Controlling Videos ........................................................................ 71

Managing Video Files ........................................................................................ 71

Sharing Videos .............................................................................................. 71

Renaming a Video ......................................................................................... 71

Viewing Details of a Video.............................................................................. 71

Recording a Voice Memo ............................................................................... 72

Playing a Voice Memo ................................ ....................................................... 72

Playing a Memo You Just Recorded .............................................................. 72

Playing Any Saved Memo .............................................................................. 72

Alarm .................................................................................................................. 73

Setting a New Alarm ...................................................................................... 73

Using the Bed Clock ...................................................................................... 73

Calculator .......................................................................................................... 73

Downloads ......................................................................................................... 73

File Manager ...................................................................................................... 73

Full Share ...................................................................................................... 74

Sharing Media Files on Your Phone ............................................................... 74

Note Pad ............................................................................................................ 75

Play Books .................................................................................................... 75

Play Movies & TV ............................................................................................... 75

Task Manager .................................................................................................... 75

Table of Contents

Timer .................................................................................................................. 75

World Time ......................................................................................................... 75

YouTube ............................................................................................................. 76

Browsing and Searching for Apps .................................................................... 77

Downloading and Installing Apps ..................................................................... 77

Managing Your Downloads ............................................................................... 77

Viewing Your Downloaded Apps ....................................................................... 77

Uninstalling an App ........................................................................................ 77

General Settings ................................................................................................ 78

Airplane Mode ................................................................................................ 78

Wi-Fi ................................................................ .............................................. 78

Bluetooth ........................................................................................................ 78

Mobile Networks ............................................................................................. 78

Sound ............................................................................................................ 78

Display ........................................................................................................... 78

Date and Time ............................................................................................... 78

Language and Input ....................................................................................... 78

Wireless and Networks ...................................................................................... 79

Data Usage .................................................................................................... 79

VPN ............................................................................................................... 79

Device ................................................................................................................. 79

Storage .......................................................................................................... 79

Table of Contents

Battery ........................................................................................................... 80

Apps .............................................................................................................. 80

Connect to PC ............................................................................................... 80

Personal ................................................................ ............................................. 80

Location Services .......................................................................................... 80

Security ......................................................................................................... 80

Backup and Reset ......................................................................................... 81

Accounts ............................................................................................................ 81

System ................................ ................................................................ ............... 81

Accessibility ................................................................................................... 81

Software Updates .......................................................................................... 81

About Phone .................................................................................................. 81

Radio Frequency (RF) Energy ............................................................................ 86

FCC Compliance ................................................................................................ 86

Using Your Phone with a Hearing Aid Device .................................................. 87

HAC for Newer Technologies ......................................................................... 88

Road Safety ....................................................................................................... 88

Driving ................................................................ ........................................... 88

Operating Machinery ...................................................................................... 89

Product Handling .............................................................................................. 89

General Statement on Handling and Use ..................................................... 89

Small Children ............................................................................................... 89

Demagnetization ............................................................................................ 90

Table of Contents

Electrostatic Discharge (ESD) ........................................................................ 90

Normal Use Position ....................................................................................... 90

Air Bags ......................................................................................................... 90

Seizures/Blackouts ......................................................................................... 90

Repetitive Stress Injuries ................................................................................ 90

Emergency Calls ............................................................................................ 90

Loud Noise ..................................................................................................... 90

Phone Heating ............................................................................................... 91

Electrical Safety ................................................................................................. 91

Accessories.................................................................................................... 91

Connection to a Car ....................................................................................... 91

Faulty and Damaged Products ....................................................................... 91

Interference ........................................................................................................ 91

General Statement on Interference ................................................................. 91

Pacemakers ................................................................................................... 91

Hearing Aids .................................................................................................. 91

Medical Devices ............................................................................................. 92

Hospitals ........................................................................................................ 92

Aircraft ........................................................................................................... 92

Interference in Cars ........................................................................................ 92

Gas Stations and Explosive Atmospheres ....................................................... 93

Blasting Caps and Areas ................................................................................ 93

Getting Started

Installing the Battery and a microSDHC Card

Switch off your phone before installing or replacing the battery. You have the option to install a microSDHC card of up to 32GB to

expand your phone’s storage capacity. The

microSDHC card can be installed and removed while the phone is turned on. Unmount the microSDHC card before removing it.

1. Place your finger in the slot at the bottom of the back cover to lift and remove the cover.

2. Insert the battery by aligning the metal contacts on the battery with the gold contacts in the battery compartment. Gently push down on the battery until it clicks into place.

WARNING!

leaking Li-Ion battery as you can be burned.

3. Open memory card cover at the left side of the phone an insert the microSDHC card.

NOTE:

pre-installed microSDHC card. Some applications may not function normally after you remove the card, pre-installed or otherwise.

4. Push tightly until the card is installed in the right position and close the card cover.

Do not handle a damaged or

Your phone may come with a

Charging the Battery

WARNING!

chargers and cables. The use of unapproved accessories could damage your phone or cause the battery to explode.

1. Connect the adapter to the charging port. Ensure that the adapter is inserted with the correct orientation. Do not force the connector into the charging port.

2. Connect the charger to a standard AC wall

outlet. If the phone is on, you’ll see a

charging icon, such as or , appear in the Status Bar.

3. Disconnect the charger when the battery is fully charged.

Use only ZTE-approved

Switching Your Phone On/Off

Getting Started

• Press and hold the Power/Lock Key to turn on your phone.

• To turn it off, press and hold the Power/Lock Key to open the options menu. Tap Power off and then tap OK.

Setting Up Your Phone for the First Time

When you first power on your phone after you purchase it or reset it to factory settings (see Settings – Personal – Backup and Reset), you may need to set it up before using it.

1. Tap the language field, select the language

you want, and tap Start.

2. Set the date, time, and time zone, or use

date and time data provided by the network. Then tap Next.

3. If you have a Google™ account, tap Yes to

sign in. Tap No if you do not have an account. Tap Get an account to create a Google account or tap Not now to set up an account later.

4. Configure the Google location options and

tap Next.

5. Enter your name, which the phone uses to

personalize some apps, and then tap Next.

6. You will be prompted to accept the Google

Getting Started

7. Tap Finish to complete the setup. If the phone is not activated, it would

NOTE:

prompt you to connect to a Wi-Fi network before asking you to sign in to a Google account.

Locking/Unlocking the Screen and Keys

Your phone allows you to quickly lock the screen and keys (put the phone into Sleep mode) when not in use, and also to turn the screen back on and unlock it when you need it.

To lock the screen and keys:

To quickly turn the screen off and lock the keys, press the Power/Lock Key.

To save battery power, the phone

NOTE:

automatically turns off the screen after a certain period of time when you leave it idle. You will still be able to receive messages and calls while the phone screen is off.

To unlock the screen and keys:

1. Press the Power/Lock Key to turn the

screen on.

2. Long press screen to unlock. If you have set an unlock pattern, PIN,

NOTE:

or password for your phone (see Personalizing – Protecting Your Phone With Screen Locks),

you’ll need to draw the pattern or enter the

PIN/password to unlock your screen.

Using the Touch Screen

Your phone’s touch screen lets you control

actions through a variety of touch gestures.

• Tap – When you want to type using the

on-screen keyboard, select items on-screen (such as application and settings icons), or press on-screen buttons, simply tap them with your finger.

• Tap and Hold – To open the available

options for an item (for example, a message or link in a web page), tap and hold the item.

• Swipe or Slide – To swipe or slide means

to quickly drag your finger vertically or horizontally across the screen.

• Drag – To drag, press and hold your finger

with some pressure before you start to

move your finger. While dragging, do not release your finger until you have reached the target position.

• Pinch – In some apps (such as Maps, Browser, and Gallery), you can zoom in and out by placing two fingers on the screen at once and pinching them together (to zoom out) or spreading them apart (to zoom in).

• Rotate the screen – For most screens, you can automatically change the screen orientation from portrait to landscape by turning the phone sideways.

Getting Started

3.5mm

Headset Jack

End/Power key

Micro USB

Charging Port

Earpiece

Volume

Up/Down Keys

Back Key

Microphone

micro SD card slot

Battery

Cover

Camera

Speaker

Menu Key

Getting to Know Your Phone

Key Functions

Key

Description

Power/Lock Key

Press and hold to turn on or off Airplane mode, enable silent mode/vibration mode/sound, or to power off. Press to switch your phone to Sleep mode. Press to wake up your phone.

Home Key

Press to return to the Home Screen from any application or screen. Press and hold to see recently used applications.

Menu Key

Press for current screen options.

Back Key

Press to go to the previous screen.

Volume Keys

Press or hold to turn the volume up or down.

Getting Started

Earpiece

Shortcut

Tap to open

the main

Wallpaper

Widget

Tap to open

contacts

Tap to open

messaging

Tap to open the web browser

Tap to

open the

Home Screen

You can customize your Home Screen. Set your own wallpaper, add the widgets or application shortcuts you need, or remove them as you like.

Arrange & work with apps

Too see all your apps, touch the All Apps Icon

on any Home screen. After opening the All Apps, press an icon to enter the corresponding application. Touch the Back key to return to the previous screen. Touch the Home key to return to the home screen.

From All Apps, you can:

• Explore your widgets: Touch the widgets

tab at the top of any All Apps screen.

• Get more apps.: Touch the Play Store

icon at the top of any All Apps screen. On the home screen, touch & hold the Home key, opens a list of thumbnail images of apps

you’ve worked with recently. To open an app,

touch it. To remove a thumbnail from the list, swipe it left or right.

Changing the System Language

Personalizing

1. Press the Home Key > Menu Key >

System settings > Language & input > Language.

2. Select the language you need.

Changing the Ringtone

You can customize the default ringtone for incoming calls by taking the following steps.

1. Press the Home Key > Menu Key >Settings > Sound.

2. Tap Phone ringtone.

3. Scroll through the ringtone list and select the ringtone you want to use.

4. Tap OK.

See People – Editing Contacts – Setting

TIP:

a Ringtone for a Contact for how to assign a special ringtone to an individual contact.

Personalizing

4. Tap OK.

Turning On/Off Touch Sounds

1. Press the Home Key > Menu Key > System settings > Sound.

2. Check or uncheck Touch sounds.

Adjusting Volumes

1. Press the Home Key > Menu Key > System settings > Sound > Volumes.

2. Drag the sliders to adjust the volume for each type of audio.

3. Tap OK to save.

You can adjust the media volume when a

TIP:

media application is in use by pressing the Volume Up/Down Keys. If no media application is active, press the Volume Up/Down Keys to adjust ringtone volume (or the earpiece volume during a call).

Changing the Notification Sound

You can customize the default notification sound by taking the following steps.

1. Press the Home Key > Menu Key > Settings >Sound.

2. Tap Notification ringtone.

3. Scroll through the list and select the ringtone you want to use.

Switching to Silent Mode

You can set the phone to silent mode by using one of the following methods:

• Press and hold the Power/Lock Key and then tap to enable silent mode, tap to enable silent

to disable silent mode.

• Keep pressing the Volume Down Key

mode with vibration, or tap

Personalizing

when no media application is active. When the icon appears in the Status Bar, the phone is set to silent mode with vibration. When the icon appears in the Status Bar, the phone is in silent mode.

• Press the Home Key > Menu Key > System settings > Sound > Silent mode, and tap Vibrate or Mute.

Applying New Wallpapers

You can set the wallpaper for the Home Screen or Lock Screen.

1. Press the Home Key > Menu Key >

Wallpaper.

2. Tap Home or Lock screen.

3. Select a wallpaper source from Gallery,

Live Wallpapers, or Wallpapers and choose the image or animation you want to use as the wallpaper. Some cropping may be needed for Gallery images.

4. Tap Set wallpaper.

Live Wallpapers are not available for

NOTE:

the Lock Screen.

Changing the Screen Brightness

1. Press the Home Key > Menu Key >

System settings > Display > Brightness.

2. Check the Automatic brightness box to

make the phone adjust the screen brightness automatically, or clear the check box to adjust the brightness manually.

3. Tap OK.

Protecting Your Phone With Screen Locks

You can protect your phone by creating a screen lock. When enabled, you need to draw a pattern or enter a numeric PIN or password to unlock the phone’s screen and keys.

1. Press the Home Key > Menu Key > System settings > Security.

2. Tap Screen lock.

3. Tap Pattern, PIN, or Password.

• If you tap Pattern, you’ll need to create a

pattern you must draw to unlock the screen. The first time you do this, a short tutorial about creating an unlock pattern appears.

Then you’ll be prompted to draw and

redraw your own pattern.

• If you tap PIN or Password, you’ll be

prompted to set a numeric PIN or a password that you must enter to unlock

your screen. The next time you turn on your phone or wake up the screen, you must draw your unlock pattern or enter your PIN or password to

unlock it.

IMPORTANT:

set, try five times and tap Forget pattern? to sign in to the Google account you have added on the phone and reset the screen lock. You will need an active Internet connection. You can also upgrade the phone software.

If you forget the pattern you

Protecting Your Phone With Encryption

You can encrypt all the data on your phone: Google accounts, application data, music and other media, downloaded information, and so on. If you do, you must enter a numeric PIN or password each time you power on your phone.

WARNING!

only way to revert to an unencrypted phone is to perform a factory data reset, which erases all your data.

Encryption provides additional protection in case your phone is stolen, and may be required or recommended in some organizations. Consult your system administrator before turning it on. In many cases the PIN or password you set for encryption is controlled by the system administrator.

Before turning on encryption, prepare as follows:

Encryption is irreversible. The

Personalizing

1. Set a lock screen PIN or password.

2. Charge the battery.

3. Keep the phone connected to the charger.

4. Schedule an hour or more for the encryption

process. You must not interrupt it or you will lose some or all of your data.

When you’re ready to turn on

encryption:

1. Press the Home Key > Menu Key >

System settings > Security > Encrypt phone.

2. Read the information about encryption

carefully. The Encrypt phone button is dimmed if

your battery is not charged or your phone is not plugged in. If you change your mind about encrypting your phone, press the Back Key.

WARNING!

process, you will lose data.

3. Tap Encrypt phone.

4. Enter your lock screen PIN or password and

tap Next.

5. Tap Encrypt phone again. The encryption process starts and displays its

If you interrupt the encryption

Personalizing

progress. Encryption can take an hour or more, during which time your phone may restart several times.

When encryption is complete, you’ll be

prompted to enter your PIN or password. Subsequently, you must enter your PIN or

password each time you power on your phone to decrypt it.

Knowing the Basics

Indicator

What it means

Indicator

What it means

1X network connected

No signal

3G network connected

Signal strength

Flight mode

Ringer off

Battery empty

Vibrate mode

Battery low

Bluetooth on

Battery partly drained

Connected to a Wi-Fi network

Battery full

Wi-Fi in use

Battery charging

Wired headset connected

Alarm set

Knowing the Basics

Monitoring the Phone Status

The Status Bar at the top of the Home Screen provides phone and service status icons on the right side. Below are some of the icons you may see.

Indicators and Icons

+ 83 hidden pages

ZTE Z668C User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual