ZTE Obsidian User Manual
User Manual and Safety Information
ZTE Z820
User Manual and
Safety information
1
About This Manual
LEGAL INFORMATION
Copyright © 2014 ZTE CORPORATION
All rights reserved.
Approved Firmware Versions: 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.
ZTE Corporation reserves the right to correct typographical errors, misprints or update
specifications in this guide without prior notice.
The Bluetooth® trademark and logos are owned by the Bluetooth SIG, Inc. and any use of such
trademarks by ZTE Corporation is under license. Other trademarks and trade names are the
property of their respective owners.
Manufactured under license from Dolby Laboratories. Dolby and the double-D symbol are
trademarks of Dolby Laboratories.
We offer self-service for our smart terminal device users. Please visit ZTE official website (at
www.ztedevice.com) for more information on self-service and supported product models.
Information subject to the website.
Version No.: R1.0
Edition Time: July, 2015
Manual No.: 081704100434
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Contents
About This Manual ...................................................................................... 2
Getting Started ............................................................................................ 7
Getting to Know Your Phone ....................................................................................... 7
Knowing the Keys ....................................................................................................... 9
Installing the micro-SIM Card ...................................................................................... 9
Installing the micro SDHC™ Card ..............................................................................11
Charging the Battery ................................................................................................. 12
Extending the Battery Life ......................................................................................... 12
Restarting the Phone ................................................................................................ 13
Setting Up for the First Time ................................ ...................................................... 13
Powering On/Off ....................................................................................................... 13
Locking/Unlocking the Screen and Keys .................................................................... 13
Using the Touch Screen ............................................................................................ 13
Getting to Know the Home Screen ............................................................................ 14
Personalizing .............................................................................................15
Changing the System Language ............................................................................... 15
Setting the Date and Time ......................................................................................... 15
Changing Ringtone and Notification Sound ............................................................... 15
Turning On/Off Touch Sounds ................................................................................... 15
Adjusting Volumes..................................................................................................... 15
Switching to Silent Mode ........................................................................................... 16
Applying New Wallpapers .......................................................................................... 16
Changing Screen Brightness ..................................................................................... 16
Protecting Your Phone with Screen Locks ................................................................. 17
Knowing the Basics ...................................................................................18
Monitoring the Phone Status ..................................................................................... 18
Managing Notifications .............................................................................................. 18
Notification Icons ....................................................................................................... 18
Managing Shortcuts and Widgets .............................................................................. 20
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Organizing With Folders ............................................................................................ 21
Rearranging the Favorites Tray .................................................................................. 21
Entering Text ............................................................................................................. 22
Editing Text ................................................................................................................ 23
Opening and Switching apps ..................................................................................... 23
Connecting to Networks and Devices ..................................................... 24
Connecting to Mobile Networks .................................................................................. 24
Connecting to Wi-Fi® ................................................................................................. 25
Connecting to Bluetooth® Devices .............................................................................. 27
Connecting to Your Computer via USB ....................................................................... 28
Sharing Your Mobile Data Connection ........................................................................ 29
Connecting to Virtual Private Networks ...................................................................... 30
Phone Calls ............................................................................................... 31
Placing and Ending Calls ........................................................................................... 32
Answering or Rejecting Calls ..................................................................................... 32
Working with the Call Log .......................................................................................... 33
Calling Your Contacts ................................................................................................ 34
Checking Voicemail ................................................................................................... 34
Using Options during a Call ....................................................................................... 34
Managing Multi-party Calls ......................................................................................... 35
Adjusting Your Call Settings ....................................................................................... 35
Contacts .................................................................................................... 37
Checking Contact Details ........................................................................................... 37
Adding a New Contact ............................................................................................... 37
Importing, Exporting, and Sharing Contacts ............................................................... 38
Working with Groups.................................................................................................. 39
Searching for a Contact ............................................................................................. 40
Editing Contacts ........................................................................................................ 40
Adding or Removing Accounts ................................................................................... 42
Email .......................................................................................................... 42
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Set Up the First Email Account .................................................................................. 43
Checking Your Emails ............................................................................................... 43
Responding to an Email ............................................................................................ 43
Writing and Sending an Email ................................................................................... 44
Adding Signature to Your Emails ............................................................................... 44
Adding and Editing Email Accounts ........................................................................... 44
Changing General Email Settings .............................................................................. 45
Messaging ..................................................................................................46
Opening the Messaging Screen ................................................................................ 46
Sending a Text Message ........................................................................................... 46
Sending a Multimedia Message ................................................................................. 46
Replying to a Message .............................................................................................. 47
Forwarding a Message .............................................................................................. 47
Deleting Messages or Threads .................................................................................. 47
Changing Messaging Settings ................................................................................... 48
Calendar .....................................................................................................49
Viewing Your Calendars and Events .......................................................................... 49
Creating an Event ................................................................ ..................................... 50
Changing Calendar Settings ...................................................................................... 50
Camera .......................................................................................................50
Capturing a Photo ..................................................................................................... 51
Recording a Video ..................................................................................................... 51
Customizing Camcorder Settings .............................................................................. 52
Gallery ........................................................................................................52
Opening Gallery ........................................................................................................ 52
Working with Albums ................................................................................................. 52
Working with Pictures ................................................................................................ 53
Sound Recorder .........................................................................................54
Recording a Voice Memo .......................................................................................... 54
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Playing a Voice Memo ............................................................................................... 55
More Apps ................................................................................................. 55
File Manager ............................................................................................................. 55
Calculator .................................................................................................................. 55
Clock ......................................................................................................................... 55
Downloads................................................................................................................. 56
Settings ...................................................................................................... 57
Wireless & Networks .................................................................................................. 57
Device ....................................................................................................................... 58
Personal .................................................................................................................... 59
Accounts ................................................................................................................... 60
System ...................................................................................................................... 60
About Anti-theft ......................................................................................... 61
Troubleshooting ........................................................................................ 69
For Your Safety ......................................................................................... 72
General Safety........................................................................................................... 72
Distraction ................................................................................................................. 73
Product Handling ....................................................................................................... 73
Electrical Safety ......................................................................................................... 76
Radio Frequency Interference .................................................................................... 76
Explosive Environments ............................................................................................. 78
Radio Frequency (RF) Exposure ................................ ................................................ 78
FCC Compliance ................................................................................................ ....... 79
Hearing Aid Compatibility (HAC) regulations for Mobile phones .................................. 80
CTIA Requirements ................................................................................................... 81
6
Getting Started
Getting to Know Your Phone
Volume key
Proximity & light
sensor
Back key sensor
Indicator light Sensor
Home key
Front camera
Charger
/micro-USB Interface
Power key sensor
Menu key
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Back camera
Vice microphone
Flash
Speaker
Headset interface
Microphone
8
Knowing the Keys
Touch to go to the previous screen.
Volume Keys
Key Function
Power Key
Home Key
Menu Key
Back Key
● Press and hold to turn on your phone.
● Press and hold to power off your phone.
● Press to switch your phone to sleep mode.
● Press to wake up your phone.
● Touch to return to the Home Screen from any application or screen.
● Touch to get the options for the current screen: Wallpaper, Manage
apps, System settings.
● Long press and hold to see recently used applications.
Press or hold to turn the volume up or down.
Installing the micro-SIM Card
Switch off your
1. Remove the back cover of the phone.
phone before installing and removing the micro-SIM card.
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2. Remove the battery.
3. Hold the micro-SIM card with the cut corner oriented as shown and push it into the card slot.
CAUTION: To avoid damage to the phone, please do not use other kinds of SIM cards, and do
not use a non-standard micro-SIM card. You can get the standard micro-SIM card from your
service provider.
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Installing the micro SDHC™ Card
The micro SDHC card (sold separately) can be installed and removed while the phone is turned on.
Remove the microSDHC Card From Your Phone before removing it.
1. Remove the back cover of the phone.
2. Remove the battery.
3.
Hold the micro SDHC card with the cut corner oriented as shown and push it into the
card slot.
NOTE: micro SDHC logo is a trademark of SD-3C, LLC.
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Charging the Battery
When you get your new phone, you’ll need to charge the battery.
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.
CAUTION: Do not change the built-in rechargeable battery in your phone by yourself. The battery
can only be changed by ZTE or ZTE auto rose service provider.
1. Connect the adapter to the charging interface. Ensure that the adapter is inserted with the
correct orientation. Do not force the connector into the charging interface.
2. Connect the charger to a standard AC wall outlet. If the phone is on, you’ll see a charging icon,
such as , 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 charged. In this case, try again after charging the phone for at least 10 minutes.
Contact customer service if you still cannot power on the phone after prolonged charging.
Extending the Battery Life
Active applications, screen brightness levels, Wi-Fi usage and GPS functionality and other
certain features can all 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 auto-sync, Mobile HotSpot, Wi-Fi, and Bluetooth off when not in use.
Disable the GPS function when not in use. Most applications using this function will
periodically query the GPS satellites for your current location; each query drains your battery.
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Restarting the Phone
If the screen freezes or takes too long to respond, try pressing and holding the Power Key for
about 10~15 seconds to restart the phone.
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.
Flick the language field to select the language and touch . Then follow the prompts to Insert
SIM card, select Wi-Fi network,Date & time, Name, Protect your phone, Google services and
other options.
Powering On/Off
Make sure the micro-SIM card is in your device and the battery is charged.
Press and hold the Power Key to turn on your phone.
To turn it off, press and hold the Power Key. Then touch Power off.
Locking/Unlocking the Screen and Keys
Your phone allows you to quickly lock the screen and keys (put the phone to sleep mode) when
not in use, and 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 Key.
To unlock the screen and keys:
1. Press the Power Key to turn the screen on.
2. Touch and swipe up the screen to unlock it.
Using the Touch Screen
Your phone’s touch screen lets you control actions through a variety of touch gestures.
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Google
search
Status &
Notifications
Shortcuts
Chrome
Messaging
Phone
Contacts
All apps
Touch when you want to type using the onscreen keyboard, select onscreen items such as
application and settings icons, or press onscreen buttons, simply touch them with your finger.
Rotate the screen for most screens; you can automatically change the screen orientation from
portrait to landscape by turning the phone sideways.
Getting to Know the Home Screen
The home screen is the starting point for your phone’s applications, functions, and menus. You
can customize your home screen by adding application icons, shortcuts, folders, widgets, and
more. Your home screen extends beyond the initial screen. Swipe the screen left or right to
display additional screens.
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Personalizing
Changing the System Language
1. Touch the Home Key > Menu Key > System settings > Language & input > Language.
2. Select the language you need.
Setting the Date and Time
1. Touch the Home Key > Menu Key > System settings > Date & time.
2. Select Off in Automatic date & time and uncheck Automatic time zone if you want to set
the date, time and time zone by yourself.
3. Set the date, time, time zone, and use 24-hour format.
Changing Ringtone and Notification Sound
You can customize the default ringtone for incoming calls and default notification sound quickly.
1. Touch the Home Key > Menu Key > System settings > Sound & notification.
2. Touch > Phone ringtone or Default notification sound.
3. Scroll through the ringtone list and select the ringtone you want to use.
4. Touch OK.
Turning On/Off Touch Sounds
1. Touch the Home Key > Menu Key > System settings > Sound & notification.
2. Touch > Touch sounds to turn on or turn off.
Adjusting Volumes
1. Touch the Home Key > Menu Key > System settings > Sound & notification > > Ring
volume and Alarm volume.
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2. Adjust the volume for music, video, games, and other media, the ringtone and notification
volume, and the alarm volume.
TIP: 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 in the status bar, the phone is set to meeting mode with vibration. When
the icon appears in the status bar, the phone is in silent mode.
Touch the Home Key > Menu Key > Settings > Sound & notification > Silent.
Applying New Wallpapers
You can set the wallpaper for the Home Screen.
1. Touch the Home Key > Menu Key > Wallpaper.
2. Select a wallpaper source from Desktop wallpapers, Gallery, Live Wallpapers,
Photos or Wallpapers and choose the image or animation you want to use as the
wallpaper. Some cropping may be needed for Gallery images.
For Desktop wallpapers, touch Set wallpaper. For Live wallpapers, touch Set wallpaper. For
Gallery, touch . For Photos, touch . For wallpapers, touch
.
Changing Screen Brightness
1. Touch the Home Key > Menu Key > System settings > Display > Brightness level.
2. Touch Adaptive brightness to make the phone adjust the screen brightness automatically,
or adjust the brightness manually.
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Protecting Your Phone with Screen Locks
You can protect your phone by creating a screen lock. When enabled, you need to touch and
hold the screen, draw a pattern or enter a numeric PIN or password to unlock the phone’s screen
and keys.
1. Touch the Home Key > Menu Key > System settings > Security.
2. Touch Screen lock.
3. Touch Swipe, Voice Unlock, Pattern, PIN or Password.
If you touch Pattern, you’re guided 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’re prompted to draw and redraw your own pattern.
If you touch PIN or Password, you’re prompted to set a numeric PIN or a password you
must enter to unlock your screen.
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LTE connected
No signal
2G connected
Signal strength
3G connected
Mobile data in use
4G connected
Alarm set
Flight mode
Ringer off
Battery partially drained
Vibrate mode
Battery full
Bluetooth on
Battery charging
Connected to a Wi-Fi network
Wired headset connected
Wi-Fi in use
GPS on
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.
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.
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New SMS
Upcoming event
New MMS
Call in progress
New Email
USB connected
Problem with SMS/MMS delivery
Downloading data
Missed call
Sending data
New Wi-Fi network detected
Open/Close the Notification Panel
Notifications report the arrival of new message, calendar events, and alarms, as well as
ongoing events.
To open the notification panel, swipe your finger down from the top of the screen.
To close the notification panel, swipe your finger up from the bottom of the screen or touch
the Back Key.
Respond or Remove a Notification
In the notification panel, you can respond to a notification or remove the notifications.
To respond to a notification, just touch it.
To remove a notification, swipe it left or right.
To remove all notifications, touch in the below.
Touch and hold a notification and then touch App info to identify the application that created
it. To turn off notifications from that application if needed, uncheck Block in the App info
screen.
NOTE: If you turn off notifications for an app, you may miss its important alerts and updates. The
notifications of some apps cannot be turned off.
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Use Quick Settings
The Quick Settings in the notification panel make it convenient to view or change the most
common settings for your phone.
Open the notification panel and touch to find the following Quick Settings.
SETTINGS: Touch to open the Settings menu.
Wi-Fi: Touch to turn on or off the Wi-Fi feature.
Auto-rotate: Touch to turn on or off the Auto-rotate feature.
Airplane mode : Touch to turn on or off the aeroplane mode.
BLUETOOTH: Touch to turn on or off Bluetooth.
Location: Touch to turn on or off location services.
Audio profiles: Touch to choose the Sound general settings of the phone, such as General,
Silent, Meeting and Outdoor.
Flashlight: Touch to turn on or off flashlight.
Managing Shortcuts and Widgets
Add Shortcuts and Widgets
1. Touch the Home Key > .
2. Touch APPS or WIDGETS to view the available shortcuts and widgets.
3. Touch and hold a shortcut or widget and drag it to the Home Screen.
Move Shortcuts or Widgets
1. Touch and hold a shortcut or widget on the Home Screen.
2. Drag it to the place you need.
Remove Shortcuts or Widgets
1. Touch and hold a shortcut or widget on the Home Screen.
2. Drag it to to remove it.
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Organizing With Folders
You can create folders on the Home Screen and add several shortcuts in a folder.
Create a Folder
1. Touch and hold a shortcut on the home screen.
2. Drag the shortcut icon over another and release your finger. A new folder is created and both
shortcuts are added into the folder.
3. If needed, drag more shortcuts and drop them into the folder.
Rename a Folder
1. Touch a folder to open it.
2. Touch the folder name field and enter a new name.
Add Shortcuts to a Folder
1. Touch and hold a shortcut and then drag it onto a folder icon.
2. Release the shortcut and it will be added into the folder.
Remove Shortcuts from a Folder
1. Touch a folder to open it.
2. Touch and hold the shortcut you want to remove and then drag it to the Home Screen.
3. Release the shortcut and it will be removed from the folder.
Rearranging the Favorites Tray
The Home Screen includes a customizable favorite’s tray at the bottom visible from all
Home Screens. You can drag apps, shortcuts, folders, and other priority items in or out of
the favorite’s tray for instant access from any Home Screen.
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To remove items from the favorite’s tray:
Touch and hold an item in the favorite’s tray and drag it out of the tray.
To add items to the favorite’s tray:
Touch and hold an item on the Home Screen and drag it into the favorite’s tray.
If the favorite’s tray is full, you need to remove an item from the tray.
Entering Text
You can enter text using the onscreen keyboard. Some apps open it automatically. In others, you
open it by touching where you want to type. You can touch the Back Key to hide the onscreen
keyboard.
Android Keyboard
The Android Keyboard provides a layout similar to a desktop computer keyboard. Turn the phone
sideways and the keyboard will change from portrait to landscape. The landscape keyboard is
not supported in all applications.
Touch the alphabetic keys to enter letters.
Touch ／ to use uppercase or lowercase. Touch to delete the text before the
cursor.
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Touch to select numbers and symbols.
Touch to use Google voice typing.
Input Settings
Choose input settings by touching the Menu Key > System settings > Language & input.
In the Keyboard & input methods section, you can set the default input method and choose
the settings for input methods.
Editing Text
Select text: Touch and hold or double-tap within the text. The nearest word highlights, with
a tab at each end of the selection. Drag the tabs to change the selection.
Copy: Select the text you want to manipulate. Then touch Copy to copy the text to the
clipboard.
Insert text from the clipboard: Move cursor to the insertion point and then touch and hold the
tab below the cursor. Release the finger and touch PASTE.
Opening and Switching apps
Open an App
1. Touch the Home Key > .
2. Slide left or right on the screen and touches an app to open it.
Switch between Recently Opened Apps
1. Touch and hold the Menu 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, you can scroll the list up and down.
2. Touch a thumbnail to open that app.
NOTE: You can swipe a thumbnail sideways to remove it from the list.
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Connecting to Networks and Devices
Connecting to Mobile Networks
Select Network Operator
1. Touch the Home Key > Menu Key > System settings > More>Cellular networks
2. Touch Network operators ，then touch Search networks to search for all available
networks
3. Touch a network in the network list to register manually. You can also touch Choose
automatically to select preferred network automatically.
Control Mobile Data Use
To enable or disable data access:
1. Touch the Home Key > Menu Key > System settings > Data usage>CELLULAR.
2. Switch on or off Cellular data to enable or disable data access over the mobile network.
To get data services when roaming:
1. Touch the Home Key > Menu Key > System settings > More>Cellular networks.
2. Check Data roaming.
IMPORTANT: Data roaming may incur significant roaming charges.
Use 2G Network Only to Save Power
1. Touch the Home Key > Menu Key > System settings > More>Cellular
networks>Preferred network type.
2. Select 2G only to save battery power.
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.
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1. Touch the Home Key > Menu Key > System settings > More> Cellular networks >
Access Point Names.
2. Touch Menu Key > New APN.
3. Touch each item to enter the information you get from your service provider.
4. Touch the Menu Key > Save to complete.
TIP: To set the APN to default settings, touch the Menu Key > Reset to default.
Connecting to Wi-Fi®
Wi-Fi is a wireless networking technology that can provide Internet access at distances of up to
100 meters, depending on the Wi-Fi router and your surroundings.
Turn Wi-Fi On and Connect to a Wi-Fi Network
1. Touch the Home Key > Menu Key > System settings > Wi-Fi.
2. Slide the Wi-Fi switch to the ON position to turn on Wi-Fi.
3. Touch a network name to connect to it.
4. If the network is secured, enter the password and touch CONNECT.
NOTE: Your phone automatically connects to previously used Wi-Fi networks when they are in
range.
Get Notified of Open Networks
1. Touch the Home Key > Menu Key > System settings > Wi-Fi.
2. Slide the Wi-Fi switch to the ON position.
3. Touch the Menu Key > Advanced.
4. Check Network notification.
When Wi-Fi is on, you receive notifications in the Status bar when your phone detects an
open Wi-Fi network. Uncheck the 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 to add a Wi-Fi
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