AT&T Radiant User manual

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AT&T U304AA
User Guide
Available applications and services are subject to change at any time.

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Table of Contents
Getting started ....................................................................................................................................6
Introduction......................................................................................................................................7
About the user guide....................................................................................................................7
Set up your phone ............................................................................................................................8
Parts and functions ......................................................................................................................8
Battery use ...................................................................................................................................1
SIMCardandmicroSDCard....................................................................................................4
Turn your phone on and off..........................................................................................................5
Use the touchscreen.....................................................................................................................6
Complete the setup screens .........................................................................................................7
Basic operations...............................................................................................................................8
Home screen and applications (Apps) list....................................................................................8
Phone settings menu....................................................................................................................9
Portrait and landscape screen orientation.................................................................................10
Capture screenshots...................................................................................................................10
Applications................................................................................................................................11
Phone number............................................................................................................................16
Airplane mode............................................................................................................................16
Google Account ..........................................................................................................................17
Lock and unlock your screen ......................................................................................................19
Your phone’s home screen .............................................................................................................20
Home screen basics....................................................................................................................20
Status bar and notification panel...............................................................................................22
Customize the home screen .......................................................................................................26
Making connections ..........................................................................................................................29
Phone .............................................................................................................................................30
Making a call..............................................................................................................................30
Receiving a call...........................................................................................................................30
Contacts..........................................................................................................................................33
Add a contact .............................................................................................................................33
Messages........................................................................................................................................35
Text and multimedia messages..................................................................................................35
Gmail..........................................................................................................................................37
Internet and social networking ......................................................................................................41
Connectivity....................................................................................................................................41

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Transfer files between your phone and a computer ..................................................................41
Wi-Fi ...........................................................................................................................................43
Bluetooth....................................................................................................................................44
Apps and entertainment ...................................................................................................................50
Camera and video ..........................................................................................................................51
Camera overview .......................................................................................................................51
Take pictures and record videos.................................................................................................52
View pictures and video using Photos........................................................................................53
Camera settings .........................................................................................................................54
Productivity ....................................................................................................................................55
Calendar .....................................................................................................................................55
Navigation apps .........................................................................................................................57
Google Search ............................................................................................................................59
Calculator ...................................................................................................................................59
Clock ...........................................................................................................................................61
Entertainment and activities..........................................................................................................68
Google Play Music app...............................................................................................................68
YouTube ......................................................................................................................................70
Settings ..............................................................................................................................................72
Basic settings..................................................................................................................................73
Network & Internet ........................................................................................................................74
Wi-Fi ...........................................................................................................................................74
Mobile network..........................................................................................................................77
Data usage .................................................................................................................................77
Hotspot & tethering ...................................................................................................................78
Airplane mode............................................................................................................................79
VPN (Virtual Private Networks)..................................................................................................79
Private DNS ................................................................................................................................80
Connected devices..........................................................................................................................80
USB .............................................................................................................................................80
Connection preferences..............................................................................................................82
Apps & notifications.......................................................................................................................85
Recently opened apps ................................................................................................................85
Notifications...............................................................................................................................85
Default apps...............................................................................................................................86
App permissions .........................................................................................................................86

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Special app access......................................................................................................................86
Battery............................................................................................................................................87
Display............................................................................................................................................88
Sound..............................................................................................................................................89
Storage ...........................................................................................................................................90
Security & location .........................................................................................................................91
Security status ............................................................................................................................91
Device security............................................................................................................................92
Privacy........................................................................................................................................93
Device admin apps .....................................................................................................................94
Encryption & credentials ............................................................................................................94
Trust agents................................................................................................................................95
Screen pinning............................................................................................................................95
Accounts.........................................................................................................................................95
Add account ...............................................................................................................................95
Automatically sync data.............................................................................................................95
Accessibility ....................................................................................................................................95
Volume key shortcut...................................................................................................................96
Downloaded services..................................................................................................................96
Screen readers............................................................................................................................96
Display........................................................................................................................................97
Interaction controls ....................................................................................................................98
Audio & on-screen text...............................................................................................................99
Experimental options ...............................................................................................................100
Google ..........................................................................................................................................100
System ..........................................................................................................................................100
Languages & input ...................................................................................................................100
Gestures ...................................................................................................................................101
Date & time..............................................................................................................................102
Backup......................................................................................................................................102
Reset options............................................................................................................................103
About phone.............................................................................................................................103
Software Update ..........................................................................................................................104
Getting help .....................................................................................................................................105
For assistance...............................................................................................................................106
Troubleshooting .......................................................................................................................106

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Specifications ...........................................................................................................................107
Customer Service information..................................................................................................108
Copyright information..............................................................................................................108
Safety and use .................................................................................................................................109
Please read before proceeding.....................................................................................................110
Important health information and safety precautions ................................................................110
Electrical safety ........................................................................................................................110
Safety precautions for proper grounding installation..............................................................110
Safety precautions for power supply unit ................................................................................110
FCC Regulations............................................................................................................................116
RF Exposure Information (SAR) ................................................................................................117
Hearing Aid Compatibility (HAC) for Wireless Telecommunication Devices ............................118

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Getting started
The topics in this section will introduce you to your phone, help you get set up with service, pro-
vide an overview of the phone screen, and get you started with basic phone operations.

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Introduction
The following topics describe the basics of using this guide and your new phone.
About the user guide
Thank you for purchasing your new AT&T RADIANT Core. The following topics explain how best
to use this guide to get the most out of your phone.
Before using your phone
Read the Quick Start Guide that is located on your phone within Settings thoroughly for proper us-
age.
Accessible services may be limited by subscription contract conditions.
Descriptions in the user guide
Note that most descriptions in this guide are based on your phone's setup at the time of purchase.
Unless otherwise noted, instructions begin from the phone's home screen, which is displayed by
pressing Home button . Some operation descriptions may be simplified.
Screenshots and key labels
Screenshots and other illustrations in this user guide may appear differently on your phone. Key
labels in the user guide are simplified for description purposes and differ from your phone's dis-
play.
Other notations
In the user guide, the phone may be referred to either as "phone," "device," or "handset." A mi-
croSD™ or microSDXC™ card is referred to as an "SD card" or a "memory card."

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Set up your phone
The following topics give you all the information you need to set up your phone and wireless ser-
vice the first time.
Parts and functions
These topics illustrate your phone’s primary parts and key functions.
Note: Your phone's screens and apps layouts are subject to change. This user guide uses sample
images only.
Phone Layout
Proximity sensor
Headset Jack
Front camera
Charger/Accessory jack
Microphone
Receiver
Touch screen
Power key
Volume key
LED indicator

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Part
Description
Front camera
Take pictures and record videos while facing the screen and al-
low you to video conference.
Receiver
Hear the caller and automated prompts.
Touchscreen
Display all the information needed to operate your phone, such
as the call status, the Contacts list, and the date and time. Also
provides one-tap access to all of your features and applications.
Power key
Press to turn the screen on or off.
Press and hold to switch the phone on or off, to restart it, or to
take a screenshot on the current screen.
Charger/Accessory jack
Connect the USB cable (included) for charging or connect other
accessories.
Volume keys
Adjust the volume for ringtones, media, notifications, and sys-
tem sounds.
Headset jack
Plug in either an optional stereo headset or an optional headset
for convenient, hands-free conversations.
Microphone
Used for transmitting your voice electronically for a call, voice
recording, or video recording.
Proximity sensor
To detect the objects is nearby without any physical
contact.
It helps to dime the screen and save battery during a call.
LED
Pulse green light: new notification;
Solid green light: charging and battery percentage >=98%;
Pulse red light: charging and battery percentage<15%;
Solid red light: Charging battery percentage<98%
(note: new notifications has priority over charging light.)
CAUTION! Inserting an accessory into the incorrect jack may damage the phone.
Battery use
The following topics explain how to insert and remove your phone’s battery.
Battery cautions
Storage: Avoid storing or leaving battery with no charge remaining. Saved information and
settings may become lost or changed, or battery may become unusable. Charge once every
six months before storing or leaving unused for a long period.
Bulges: Depending on use, bulges may appear near end of battery life. This does not affect
safety.

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Replacing battery: The battery is a consumable item. It needs to be replaced if operating
time shortens noticeably. Purchase a new battery.
Cleaning: Clean soiled terminals between battery and phone with a clean, dry cotton swab.
Soiled terminals can result in a poor connection and prevent charging, etc.
Insert the battery
Follow these instructions to insert your phone’s battery safely and properly.
1. Remove the battery cover.
Lift gently in the direction shown.
2. Insert the battery.
Align the contacts of the battery with the contacts in the phone and gently press the battery down
into place.
3. Attach the battery cover.
Make sure that all the tabs are secure and there are no gaps around the cover.
Remove the battery
Follow these instructions to remove your phone’s battery. Always power the phone off before re-
moving the battery.

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1. Remove the battery cover.
2. Remove the battery.
3. Lift upward gently as shown.
Charge the battery
1. Connect one end of the data cable to the USB port. This is located on the lower left side of
your phone
2. Connect the other end to the travel adapter.
3. Connect the travel adapter to an electrical outlet to fully charge your phone.
•Use the travel adapter that comes with your phone; using other adapters may damage
your phone.

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•Charging your phone through a USB cable that is attached to a laptop takes more
time than charging it with the travel adapter.
•The phone will power off automatically when the battery is too low. Charge the battery
if this happens. When the battery is critically low, the charging status may not be
displayed immediately (you must wait before it is displayed). Using the phone to play
games or perform other activities during the charging process may cause the phone to
power off due to low battery.
•The battery will gradually discharge if it is left unused for a long period of time. Before
using the battery again, you must recharge it in order to power on and use your phone
normally
SIM Card and microSD Card
Unmount an SD card
Always unmount an SD card before removing it from your phone to avoid corrupting or damaging
the files in the storage card.
1. From home, swipe up to access Apps, and tap Settings .
2. Tap Storage > .
Your SD card is now safely ejected. To use this SD card again, you will need to mount it first by the
following steps:
1. From home, swipe up to access Apps, and tap Settings .
2. Tap Storage > SD card.
3. Tap MOUNT on the prompted screen.
1. Attach the battery cover (see Attach the battery cover).

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Format an SD card
When you insert an optional SD card for the first time, it is recommended that you format it on
your phone. When formatting a SD card, you should back up your music and photo files that are
stored on the card as formatting the SD card deletes all the stored data.
1. From home, swipe up to access Apps, and tap Settings .
2. Tap Storage > SD card.
3. Tap to access options menu, and tap Storage settings.
4. Select Format or Format as internal, and then tap FORMAT SD CARD to confirm.
All data on the SD card is erased, and the card is formatted for use on your phone.
Turn your phone on and off
The instructions below explain how to turn your phone on and off.

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Turn your phone on
Press and hold the Power key until the device turns on.
Turn your phone off
1. Press and hold the Power key.
2. Tap Power off.
Use the touchscreen
Your phone’s touchscreen lets you control actions through a variety of touch gestures.
Tap or touch
When you want to type using the onscreen keyboard, select items onscreen such as application
and settings icons, or press onscreen buttons, simply tap or touch them with your finger.
Touch and hold
To open the available options for an item (for example, a contact or link in a Web page), touch 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.
Flick
Flicking the screen is similar to swiping, except that you need to swipe your finger in light, quick
strokes. This finger gesture is always in a vertical direction, such as when flicking the contacts or
message list.

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Rotate
For most screens, you can automatically change the screen orientation from portrait to landscape
by turning the phone sideways. When entering text, you can turn the phone sideways to bring up
a bigger keyboard. See Touchscreen keyboards for more details.
Note: To activate auto-rotate mode, swipe up from Home screen to access Apps, and tap Set-
tings > Display > Auto-rotate screen, and slide the switch to the On position. You can
also activate it by dragging down status bar and tap Auto-rotate .
Pinch and spread
“Pinch” the screen using your thumb and forefinger to zoom out or “spread” the screen to zoom in
when viewing a picture or a Web page. (Move fingers inward to zoom out and outward to zoom
in.)
Complete the setup screens
Once your service has been activated, you will need to run Setup. The Setup Wizard will appear
to guide you through the basic settings on your device.
Select a default language you want to use, select your Internet connection, set screen lock
method, sign in to your Google™ Account, select location services, and more.
Follow the remaining instructions to finish your phone setup.

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Basic operations
The following topics outline basic features and operations of your phone.
Home screen and applications (Apps) list
Most of your phone’s operations originate from the home screen or the apps list.
1. From any screen press the Home button to display the home screen.
2. From home, swipe up to access Apps.
For information about using the home screen, see Home screen basics.
Select options and navigate screens
Tap icons, onscreen buttons, and other items to open or activate the assigned function.
•Tap Back button to return to the previous screen.
Recent applications
You can display a list of recently used applications using the Recent Apps button .
•Tap Recent Apps button to view a list of recently used applications.

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For more information, see Switch between recently opened apps.
Phone settings menu
You can customize your phone’s settings and options through the Settings menu.
1. From home, swipe up to access Apps, and tap Settings .
2. Or you can also drag the status bar down twice and tap Settings
For more information, see Basic settings.

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Portrait and landscape screen orientation
The default orientation for your phone’s screen is portrait (vertical), but many apps will change to
landscape orientation (widescreen) when you rotate the phone sideways.
Note: Not all screens will adjust for landscape orientation.
Turn screen rotation on or off
1. Drag the status bar down. Tap Auto-rotation to turn the option on or off.
2. You can also set the rotation option from the Settings menu.
From home, swipe up to access Apps, tap Settings , and tap Display > Auto-rotate
screen, and slide the switch to the On or Off position to activate or deactivate it.
Capture screenshots
To capture a screenshot, you can follow either of the following two ways:
•Press and hold the Power key and Volume down key at the same time to capture a screen-
shot of the current screen.
•Touch and hold the Power key from the screen you want to capture a screenshot, and tap
Screenshot.
The screenshots you’ve taken will be stored in the Screenshots album in the phone’s Photos app.
From home, swipe up to access Apps, and tap Photos .

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Applications
The following topics describe how to access the applications (apps) list and launch apps on your
phone.
Launch applications
All installed apps can be accessed and launched from the apps list.
1. From home, swipe up to access Apps.
2. Tap an app icon to launch the corresponding application.
Working with apps
Group apps into a folder
1. Touch and hold an app and drag it over to another app to create a folder automatically.
2. To add more apps to the folder, drag each app over to the folder.
3. To name or rename the folder, open the folder, tap the title bar, and then enter a folder name.

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Remove apps from a folder
1. Tap the folder to open it.
2. Touch and hold an app in the folder and drag it out to the Home screen.
App shortcuts
Touch and hold an app icon on the Home screen or the Apps screen to display a menu that lets
you quickly access common app functions.
Note: Not all apps support the app shortcuts feature.
Switch between recently opened apps
You can easily switch between the apps you've recently opened.
Tap Recent Apps button to see your recently-opened apps.