ZTE Z2321U User Manual
Z2321U
User Manual and Safety Information
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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.
Copyright
Copyright © 2018 ZTE CORPORATION
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 guide without 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 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.
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Trademarks
ZTE and the ZTE logos are trademarks of ZTE Corporation.
Android is a trademark of Google LLC.
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc.
and any use of such marks by ZTE Corporation is under license.
microSDHC Logo is a trademark of SD-3C, LLC.
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.
Other trademarks and trade names are those of their respective owners.
Version No.: R1.0
Edition Time: December 28, 2017
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Contents
Getting Started .................................................................................................. 8
Getting to Know Your Phone ...............................................................................................8
Knowing the Keys ............................................................................................................. 10
Installing the nano-SIM Card and the microSDHC™ card .................................................. 11
Charging the Battery ......................................................................................................... 13
Extending the Battery Life ................................................................................................. 14
Powering On/Off ............................................................................................................... 14
Setting Up for the First Time ............................................................................................. 14
Getting to Know Standby Mode ......................................................................................... 15
Personalizing................................................................................................... 16
Changing the System Language ....................................................................................... 16
Setting the Date and Time................................................................................................. 16
Changing Ringtone and Notification Sound ....................................................................... 16
Turning On/Off Key Tone................................................................................................... 17
Adjusting Volumes ............................................................................................................ 17
Switching to Silent Mode ................................................................................................... 17
Applying New Wallpapers ................................................................................................. 18
Changing Screen Brightness ............................................................................................ 18
Changing Font Size .......................................................................................................... 18
Protecting Your Phone With Screen Lock .......................................................................... 18
Knowing the Basics ........................................................................................ 19
Monitoring the Phone Status ............................................................................................. 19
Managing Notifications ...................................................................................................... 19
Entering Text .................................................................................................................... 20
Opening and Switching Apps ............................................................................................ 21
Connecting to Networks and Devices ........................................................... 22
Connecting to Mobile Networks ......................................................................................... 22
Connecting to Wi-Fi .......................................................................................................... 23
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Connecting to Bluetooth® Devices .................................................................................... 26
Sharing Your Mobile Data Connection .............................................................................. 28
Connecting to Your Computer via USB ............................................................................. 29
Phone Calls ..................................................................................................... 31
Placing and Ending Calls ................................................................................................. 31
Answering or Rejecting Calls ............................................................................................ 31
Working With the Call Log ................................................................................................ 32
Calling Your Contacts ....................................................................................................... 33
Checking Voicemail .......................................................................................................... 33
Using Options During a Call ............................................................................................. 34
Managing Multi-party Calls ............................................................................................... 34
Adjusting Your Call Settings ............................................................................................. 35
Contacts .......................................................................................................... 39
Checking Contact Details ................................................................................................. 39
Adding a New Contact...................................................................................................... 39
Setting Up Your Own Profile ............................................................................................. 39
Importing, Exporting, and Sharing Contacts ...................................................................... 40
Working With Groups ....................................................................................................... 41
Searching for a Contact .................................................................................................... 42
Editing Contacts ............................................................................................................... 42
Messages ........................................................................................................ 44
Opening the Messaging Screen ....................................................................................... 44
Sending a Message ......................................................................................................... 44
Replying to a Message ..................................................................................................... 45
Forwarding a Message ..................................................................................................... 45
Changing Message Settings ............................................................................................. 45
Calendar .......................................................................................................... 46
Viewing Your Calendars and Events ................................................................................. 46
Creating an Event ............................................................................................................ 46
Editing or Deleting an Event ............................................................................................. 47
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Changing Calendar Settings ............................................................................................. 47
Browser ........................................................................................................... 48
Opening the Browser ........................................................................................................ 48
Changing Browser Settings ............................................................................................... 48
Camera ............................................................................................................. 49
Capturing a Photo ............................................................................................................. 49
Customizing Camera Settings ........................................................................................... 50
Recording a Video ............................................................................................................ 50
Gallery .............................................................................................................. 52
Opening Gallery ................................................................................................................ 52
Working With Albums ........................................................................................................ 52
Working With Pictures ....................................................................................................... 53
Playing Videos .................................................................................................................. 53
Music ................................................................................................................ 54
Copying Music Files to Your Phone ................................................................................... 54
Viewing Your Music Library ............................................................................................... 54
Playing Music ................................................................................................................... 55
Managing Playlists ............................................................................................................ 55
Video Player .................................................................................................... 56
Opening the Video Library ................................................................................................ 56
Playing and Controlling Videos ......................................................................................... 56
Managing Video Files ....................................................................................................... 56
FM Radio .......................................................................................................... 57
Scanning and Saving Channels ........................................................................................ 57
Listening to FM Radio ....................................................................................................... 57
To turn off FM radio immediately ....................................................................................... 57
Sound Recorder .............................................................................................. 58
Recording a Voice Memo .................................................................................................. 58
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Playing a Voice Memo ...................................................................................................... 58
More Apps ....................................................................................................... 58
Clock ............................................................................................................................... 58
Calculator ........................................................................................................................ 59
File Manager .................................................................................................................... 59
Settings ........................................................................................................... 60
Sound Profiles ................................................................................................................. 60
Wireless & Networks ........................................................................................................ 60
Device ............................................................................................................................. 61
System............................................................................................................................. 62
Troubleshooting .............................................................................................. 64
For Your Safety ............................................................................................... 67
General Safety ................................................................................................................. 67
FCC RF Exposure Information (SAR) ............................................................................... 68
FCC Regulations .............................................................................................................. 69
Hearing Aid Compatibility (HAC) Regulations for Mobile Phones ...................................... 70
CTIA Requirements .......................................................................................................... 71
Product Handling ............................................................................................................. 72
Electrical Safety ............................................................................................................... 75
Radio Frequency Interference .......................................................................................... 76
Explosive Environments ................................................................................................... 77
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Auxiliary
microphone
Volume key
Getting Started
Getting to Know Your Phone
Headset jack
Back cover
External screen
Camera
Speaker
8
way navigation
Send key
Charging/
Earpiece
Internal screen
4-
and OK (center) key
Left soft key
Recent apps key
Camera key
Right soft key
Power/end key
Delete key
micro-USB jack
Main microphone
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Key
Function
power off or restart the
navigation and
set
Knowing the Keys
Left soft
key/Right soft
key
Send key Press to open the Recent Calls app or place a call.
Recent apps
key
Camera key
Delete key Delete text before the cursor while editing text.
Power/end key
4-way
OK key
Volume key Press or hold either end of the key to turn the volume up or down.
Press to select the options that show on the bottom line of the screen.
The options change depending on the application/function being used.
Press to see recently used applications.
Press to launch the Camera app.
Press and hold to turn on or off airplane mode,
phone.
Press to end a call or cancel a call attempt.
Press to return to the home screen.
From standby mode, press up/down/left/right to activate pre-
functions.
Press up/down/left/right to move the highlight or cursor on the screen.
Press the center to make selections.
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Installing the nano-SIM Card and the microSDHC™ card
Switch off your phone before installing or replacing the battery or the nano-SIM card.
1. Remove the back cover, if the battery is installed, removed it.
2. Place the nano-SIM card with the chip facing downwards and the cut corner oriented as
shown and slide the nano-SIM card into the card holder.
WARNING!
To avoid damage to the phone, do not use any other kind of SIM card, or any non-standard
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nano-SIM card cut from a SIM card. You can get a standard nano-SIM card from your service
provider.
3. Hold the microSDHC card with the cut corner oriented as shown and slide it into the card slot.
NOTE:
Some applications may require a microSDHC card to work normally or may store certain data
on it. Therefore, it is recommended that you keep a microSDHC card installed and not
remove or replace it randomly.
4. Insert the battery by aligning the metal contacts on the battery with the metal contacts in the
battery compartment. Gently push down on the battery until it clicks into place.
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5. Align the back cover with the back of the phone and press the cover back into place. Ensure
that all the tabs are secure and there are no gaps around the cover.
Charging the Battery
Your phone’s battery should have enough power for the phone to turn on, find a signal, and make
a few calls. You should fully charge the battery as soon as possible.
If the battery is low, there will be a pop-up message on the screen. As you charge your phone,
the screen will tell you the exact battery level each time you wake up your phone.
WARNING!
Use only ZTE approved 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 jack. Ensure that the adapter is inserted with the correct
orientation. Do not force the connector into the charging jack.
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 on the status bar.
3. Disconnect the charger when the battery is fully charged.
NOTE:
If the battery is extremely low, you may be unable to power on the phone even when it is being
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charged. In this case, try again after charging the phone for at least 20 minutes. Contact
customer service if you still cannot power on the phone after prolonged charging.
Extending the Battery Life
Active applications, screen brightness levels and Bluetooth can drain your battery. You can follow
the helpful tips below to conserve your battery power:
Reduce the screen backlight time.
Lower the screen brightness.
Turn Bluetooth off when not in use.
Powering On/Off
Press and hold the Power/end key to turn on your phone.
To turn it off, press and hold the Power/end key to open the options menu and then select
Power off.
Setting Up for the First Time
When you first power on your phone after you purchase it or reset it to factory settings, you need
to do some settings before using it.
Select the language you want to use and then press the Right soft key for Next. Then follow the
on-screen prompts to set up your phone.
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Notifications
the Right soft key
the Left soft key
the OK key
Getting to Know Standby Mode
After power on your phone, the phone is in standby mode, the standby mode is the starting point
for your phone’s applications, functions, and menus.
Status &
The function for
The function for
The function for
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Personalizing
Changing the System Language
1. From standby mode, press the OK key.
2. Press the 4-way navigation key and the OK key to select Settings.
3. Select Device > Language & input.
4. Select the language you need.
Setting the Date and Time
1. From standby mode, press the OK key and choose Settings.
2. Select Device > Date & time.
3. Turn off Automatic date & time and Automatic time zone if you want to set the date, time
and time zone by yourself.
4. Set the date, time, time zone, and date/time format.
Changing Ringtone and Notification Sound
You can customize the default ringtone for incoming calls and the default notification sound
quickly.
1. From standby mode, press the OK key and choose Settings.
2. Select Sound profiles > Sound.
3. Press the Left soft key for Edit.
4. Select Phone ringtone or Default notification sound.
5. Scroll through the ringtone list and select the ringtone you want to use.
6. Press the Left soft key for Select.
NOTE:
See chapter People – Editing Contacts – Set a Ringtone for a Contact for how to assign a special
ringtone to an individual contact.
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Turning On/Off Key Tone
1. From standby mode, press the OK key.
2. Select Settings > Sound profiles > Sound.
3. Press the Left soft key for Edit.
4. Select Advanced.
5. Press the OK key to turn on or off the switch next to Key tone.
Adjusting Volumes
1. From standby mode, press the OK key.
2. Select Settings > Sound profiles > Sound.
3. Press the Left soft key for Edit.
4. Select the type of audio.
5. Press the Left/Right navigation key to adjust the volumes.
NOTE:
You can adjust the media volume when a media application is in use by pressing the Volume
Up/Down key. If no media application is active, press the Volume Up/Down key to adjust
ringtone volume (or the earpiece volume during a call).
Switching to Silent Mode
You can set the phone to silent mode by using one of the following methods.
Keep pressing the Volume Down key when no media application is active. When the
icon appears on the status bar, the phone is set to silent mode with vibration. When the
icon appears on the status bar, the phone is in silent mode.
From standby mode, press the OK key. Select Settings > Sound profiles > Silent
only/Vibrate only.
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Applying New Wallpapers
1. From standby mode, press the OK key and choose Settings.
2. Select Device > Display.
3. Select Wallpaper and choose Gallery or Live Wallpapers.
4. Choose the image you want to use as the wallpaper, and then press the OK key to finish.
Changing Screen Brightness
1. From standby mode, press the OK key and choose Settings.
2. Select Device > Display > Brightness.
3. Press the Left/Right navigation key to adjust the brightness manually.
Changing Font Size
1. From standby mode, press the OK key and choose Settings.
2. Select Device > Display > Font size.
3. Select Small, Default, or Large.
Protecting Your Phone With Screen Lock
You can protect your phone by creating a screen lock. When it is enabled, you need to enter a
numeric PIN to unlock the phone’s screen and keys.
1. From standby mode, press the OK key and choose Settings > Device > Security > Screen
lock.
2. Select PIN to set a numeric PIN that you must enter to unlock the screen.
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Vibration on
Knowing the Basics
Monitoring the Phone Status
The status bar at the top of the screen provides phone and service status icons on the right side.
Below are some of the icons you may see.
4G LTE connected
Silent mode/no interruptions
Battery low
Battery partially drained
Battery full
Battery charging
/
Signal strength
Managing Notifications
Notification Icons
The status bar at the top of the home screen provides notification icons on the left. Below are
some of the icons you may see.
No signal
Mobile data in use
Airplane mode
Bluetooth on
Speaker on
Phone microphone off
Alarm set
New SMS
New MMS
Missed call
Call in progress
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Downloading data
USB connected
Wired headset connected
Entering Text
You can enter text using the following input methods: abc, Abc, ABC, T12 abc, T12 Abc, T12 ABC,
and number input.
Current Text Mode
When you are in a field that allows characters to be entered, the text input mode indicator is
shown in the upper right corner of the display.
Changing the Input Mode
Press and hold the # key and select an input method.
abc/Abc/ABC Mode
Press a number key (2 to 9) repeatedly until the required character is shown on the screen.
Press once to input the first letter on the keypad, press twice quickly to input the second letter,
etc.
Press the 0 key to add a space.
T12 abc/T12 Abc/T12 ABC Mode
The predictive text method is based on a built-in dictionary and generates words from the
combination of letters pressed.
Press each key once that corresponds to the letter you want to enter. The letters are shown
on the display as they are entered. The list of candidate words changes as each key is
pressed.
When the candidate words are displayed, press the 4-way navigation key to highlight a
candidate word and then press the OK key.
Press the 0 Key to insert a space, or press the * key to select symbols.
Press the CLR key to delete the letter to the left of the cursor. Press and hold the CLR key to
delete all entered text to the left of the cursor.
123 Mode
When the input method icon is shown as 123, you can input numbers directly using the number
keys.
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NOTE:
When using number input, you need to switch to other text input methods if you want to insert a
space by pressing the 0 key.
Special Symbols
1. Press the * key.
2. Use the 4-way navigation key to select a symbol.
3. Press the OK key.
Input Settings
Choose input settings by pressing the OK key and choose Settings > Device > Languages &
input from standby mode.
In the Languages & input section, you can set the default input method.
Opening and Switching Apps
Open an App
1. From standby mode, press the OK key.
2. Press the 4-way navigation key and the OK key to select and open the app.
Switch Between Recently Opened Apps
1. Press the Recent apps key.
A list of the names and thumbnails of apps you’ve used recently opens. If you’ve been using
more apps recently than can fit on the screen, press the Up/Down navigation key scroll the
list up and down.
2. Press the OK key to open that app.
NOTE:
You can press the Left soft key for Clear all to remove all of thumbnails from the list.
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Connecting to Networks and Devices
Connecting to Mobile Networks
Select Network Operator
1. From standby mode, press the OK key.
2. Select Settings > Wireless & networks > Mobile network > Network operators.
3. Select a network in the AVAILABLE NETWORKS list to register manually.
You can also select Choose automatically to select preferred network automatically.
Control Mobile Data Use
To enable or disable data access:
1. From standby mode, press the OK key.
2. Select Settings > Wireless & networks > Mobile network.
3. Press the OK key to enable data access over the mobile network. Press again to disable data
access.
To get data services when roaming:
1. From standby mode, press the OK key.
2. Select Settings > Wireless & networks > Mobile network.
3. Using the Down navigation key to select International roaming and press the OK key.
NOTE:
International roaming may incur significant roaming charges.
Select Network Type
1. From standby mode, press the OK key.
2. Select Settings > Wireless & networks > Mobile network > Preferred network type.
3. Choose the type of network you prefer to connect to.
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Disable 2G Service
1. From standby mode, press the OK key.
2. Select Settings > Wireless & networks > Mobile network.
3. Using the Down navigation key to select Disable 2G and press the OK key.
NOTE:
If 2G service is disabled, some apps and functions may not work in locations with limited
coverage.
Set Access Point Names
To connect to the Internet you can use the default Access Point Names (APN). And if you want to
add a new APN, please contact the service provider to get the necessary information.
1. From standby mode, press the OK key.
2. Select Settings > Wireless & networks > Mobile network > Access Point Names.
3. Press the Left soft key and choose New APN.
4. Select each item to enter the information you get from your service provider.
5. Press the Left soft key and choose Save to complete.
NOTE:
To set the APN to default settings, Press the Left soft key and choose Reset to default.
Connecting to Wi-Fi
Wi-Fi is a wireless networking technology that can provide Internet access at distances of up to
300 feet, depending on the Wi-Fi router and your surroundings.
Turn Wi-Fi On and Connect to a Wi-Fi Network
1. From standby mode, press the OK key.
2. Select Settings > Wireless & networks > Wi-Fi.
3. Press the OK key to turn on Wi-Fi.
4. Select a network name to connect to it.
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5. If the network is secured, enter the password and press the Left soft key for Connect.
NOTE:
Your phone automatically connects to previously used Wi-Fi networks when they are in range.
Get Notified of Open Networks
1. From standby mode, press the OK key.
2. Select Settings > Wireless & networks > Wi-Fi.
3. Turn on the Wi-Fi if Wi-Fi is off.
4. Using the Down navigation key to select Wi-Fi preferences and press the OK key.
5. Press the OK key to turn on Open network notification switch.
When Wi-Fi is on, you receive notifications in the status bar when your phone detects an open
Wi-Fi network. Switch off this option to turn off notifications.
Add a Wi-Fi Network
You can add a Wi-Fi network if the network does not broadcast its name (SSID), or add a Wi-Fi
network when you are out of range.
To connect to a secured network, you first need to get the security details from the network's
administrator.
1. From standby mode, press the OK key.
2. Select Settings > Wireless & networks > Wi-Fi.
3. Turn on the Wi-Fi if Wi-Fi is off.
4. Using the Down navigation key to select Add network and press the OK key.
5. Enter the network SSID (name). If necessary, enter security or other network configuration
details.
6. Press the Left soft key for Save.
Connect to a WPS Network
Wi-Fi Protected Setup (WPS) is a feature that makes it easy to add your phone to the access
points which support WPS.
You can use one of the following methods to connect your phone to a wireless network using
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