AT&T Maestro 3 User manual

1
AT&T Maestro 3
User Guide
DOC20220115
™

2
Getting started ........................................................10
Introduction..........................................................11
About the user guide ....................................................11
Set up your phone ....................................................12
Parts and functions......................................................12
Battery use .............................................................15
Install a SIM/SD card.....................................................17
Turn your phone on and off...............................................20
Use the touch screen ....................................................21
Complete the setup screens ..............................................22
Basic operations .......................................................23
Home screen and Apps list ...............................................24
Phone settings menu ....................................................27
Portrait and landscape screen orientation ..................................28
Capture screenshots ....................................................29
Applications ...........................................................29
Phone number .........................................................38
Airplane mode .........................................................39
Enter text...............................................................40
Google Account ........................................................44
Lock and unlock your screen .............................................47
Home screen basics.....................................................48
Status bar and Notification panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Customize the Home screen ..............................................56
Making connections ....................................................62
Phone...............................................................63
Contents

3
Make a call ............................................................63
Call settings ............................................................72
Contacts ............................................................74
Add a contact..........................................................74
Edit a contact ..........................................................80
Delete a contact ........................................................81
Share a contact ........................................................81
Messaging...........................................................83
Text and multimedia messages ...........................................83
Messages settings ......................................................86
Gmail .................................................................87
Internet and social networking..........................................91
Chrome browser ........................................................91
Facebook..............................................................92
Connectivity .........................................................93
Transfer files between your phone and a computer ..........................93
Wi-Fi...................................................................96
Bluetooth ..............................................................97
Apps and entertainment ...............................................103
Camera ............................................................104
Camera overview ......................................................104
Take a photo ..........................................................107
Record a video ........................................................108
Scan a QR Code .......................................................109
Camera settings ...................................109
Photos .............................................................111
View photos and videos.................................................111
Options while reviewing photos or videos ..................................112
Edit photos ............................................................113

4
Share pictures and videos...............................................115
Productivity .........................................................116
Calendar .............................................................116
Google Maps .........................................................120
Google Search ........................................................122
Calculator ............................................................124
Clock ................................................................126
Entertainment and activities ...........................................134
YouTube ..............................................................134
Settings..............................................................136
Basic settings .......................................................137
Network & internet ...................................................139
Wi-Fi..................................................................139
Wi-Fi Calling ...........................................................142
Mobile network ........................................................143
Airplane mode ........................................................144
SIM cards .............................................................144
Hotspot & tethering.....................................................144
Data Saver ............................................................146
VPN (Virtual Private Networks)............................................146
Private DNS............................................................147
Wireless Emergency Alerts ...............................................148
Connected devices ..................................................149
USB ..................................................................149
Connection preferences ................................................150
Bluetooth .............................................................150
Cast .................................................................152
Printing ...............................................................153
Files received via Bluetooth ..............................................153

5
Chromebook ..........................................................153
Nearby Share..........................................................154
Android Auto ..........................................................155
Apps...............................................................156
Recently opened apps .................................................156
Default apps ..........................................................157
Screen time ...........................................................157
Unused apps ..........................................................157
Special app access ....................................................157
Notifications ........................................................158
App settings...........................................................158
Notification history .....................................................159
Conversations .........................................................159
Bubbles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159
Device & app notification ...............................................160
Notifications on lock screen .............................................160
Do Not Disturb .........................................................160
Wireless emergency alerts...............................................160
Hide silent notifications in status bar ......................................161
Allow notification snoozing ..............................................161
Notification dot on app icon.............................................161
Enhanced notifications .................................................161
Battery .............................................................162
Battery usage .........................................................162
Battery Saver ..........................................................163
Battery Manager.......................................................164
Battery percentage ....................................................164
Storage ............................................................165
Storage manager ......................................................166

6
SD card...............................................................166
Sound..............................................................167
Media volume .........................................................167
Call volume ...........................................................167
Notification volume.....................................................168
Ring volume...........................................................168
Alarm volume .........................................................168
Do Not Disturb .........................................................168
Phone ringtone ........................................................168
Media ................................................................168
Vibrate for calls ........................................................168
Shortcut to prevent ringing ..............................................169
Default notification sound ...............................................169
Default alarm sound....................................................169
Dial pad tones .........................................................169
Screen locking sound...................................................169
Charging sounds and vibration ..........................................169
Touch sounds .........................................................169
Touch vibration ........................................................169
Display.............................................................170
Brightness level ........................................................170
Dark theme ...........................................................170
Night Light ............................................................171
Adaptive brightness ....................................................171
Wallpaper ............................................................171
Screen timeout ........................................................171
Advanced ............................................................171
Accessibility ........................................................173
Real-Time text call ......................................................173

7
Downloaded apps .....................................................174
Text and display .......................................................174
Extra dim .............................................................174
Dark theme ...........................................................174
Magnification .........................................................175
Timing controls ........................................................175
System controls ........................................................175
Vibration & haptic strength ..............................................175
Caption preferences ...................................................176
Audio adjustment ......................................................176
Accessibility shortcuts ..................................................176
Text-to-speech output ..................................................176
Security ............................................................177
Google Play Protect ....................................................177
Find My Device ........................................................178
Security update........................................................178
Google Play system update .............................................179
Screen lock ...........................................................179
Fingerprint ............................................................180
Smart Lock ............................................................182
Device admin apps ....................................................182
SIM card lock..........................................................182
Encryption & credentials ................................................183
Trust agents ...........................................................183
App pinning...........................................................183
Privacy .............................................................184
Privacy dashboard .....................................................184
Permission manager....................................................184
Microphone access ....................................................185

8
Show passwords .......................................................185
Notifications on lock screen .............................................185
Show clipboard access .................................................185
Autofill service from Google..............................................185
Google location history .................................................185
Activity controls ........................................................186
Ads ..................................................................186
Usage & diagnostics....................................................186
Location............................................................187
Recent access.........................................................187
App location permissions ...............................................188
Location services ......................................................188
Safety & emergency..................................................189
Emergency information .................................................189
Emergency SOS........................................................190
Emergency Location Service.............................................191
Wireless emergency alerts...............................................191
Passwords & accounts................................................192
Passwords.............................................................192
Autofill service .........................................................193
Add account ..........................................................194
Automatically sync app data ............................................194
Digital Wellbeing & parental controls ...................................195
Your Digital Wellbeing tools ..............................................195
Parental controls .......................................................196
Google.............................................................197
System .............................................................198
Languages & input .....................................................198
Gestures ............................................................. 200

9
Date & time ...........................................................201
Backup .............................................................. 203
Multiple users......................................................... 204
Reset options ..........................................................207
About phone ........................................................208
Software Update.....................................................209
Getting help ..........................................................210
For assistance .......................................................211
Troubleshooting .......................................................211
Specifications .........................................................214
Licenses ..............................................................215
Copyright information ..................................................215
Safety and use ........................................................216
Important health information and safety precautions......................217
Electrical safety ........................................................217
Safety precautions for proper grounding installation ........................217
Safety precautions for power supply unit ..................................218
Protect your phone .....................................................225
FCC Regulations .......................................................229
RF Exposure Information (SAR) ...........................................230
Hearing Aid Compatibility ............................................231
Warranty ...........................................................232

10
Getting started
The topics in this section will introduce you to your phone, help you get set up
with service, provide an overview of the phone screen, and get you started
with basic phone operations.

11
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 U626AA Smartphone. The following topics
explain how best to use this guide to get the most out of your phone.
Before using your phone
Read the Safety Information Guide that came with your device thoroughly for
proper usage.
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 the 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 are simplified for description purposes and differ
from your phone’s display.
Other notations
In the user guide, the phone may be referred to either as “phone,” “device,”
or “handset.” A microSD™ or microSDHC™ card is referred to as an “SD card”
or a “memory card.”

12
Set up your phone
The following topics give you all the information you need to set up your
phone and wireless service for the first time.
Parts and functions
These topics illustrate your phone’s primary parts and key functions.
Headset port
Receiver
Front
camera
Touch
screen
Microphone USB Type-C charging
& accessory port
Rear
cameras
Flash
Speaker
Volume
keys
Power/Lock
key
Fingerprint
sensor
SIM tray
Eject
SIM tray
Note: Your phone’s screens and app layouts are subject to change. This user
guide uses sample images only.

13
Part Description
Fingerprint sensor Unlock your phone with a touch of your finger.
Flash •Brighten photos taken indoors or at night.
•Use as a flashlight to see in dark areas.
Front camera Take pictures and record videos while facing the
screen.
Headset port Plug in a headset (sold separately) to listen to music
or for convenient, hands-free conversations.
Microphone Transmit your voice electronically for a call, voice
recording, or Google Assistant.
Power key
•Press to turn the screen on or off.
•Press and hold to turn the phone on or off.
•Press along with the Volume down key to take a
screenshot.
Rear cameras
•Take pictures and record videos with a 13+5 MP lens.
•Use features such as the wide-angle lens, Portrait
mode, Time lapse, and more.

14
Part Description
Receiver Hear the caller and automated prompts.
SIM tray Insert your Nano SIM card and microSD for service
and additional storage.
Speaker Listen to calls, automated prompts, and music.
Touch screen •View information needed to operate your phone.
•Access your phone’s features and applications.
USB Type-C
charging &
accessory port
Connect the USB cable (included) for charging, or
connect other accessories.
Volume keys Adjust the volume for ringtones, media, notifications,
and system sounds.
CAUTION! Inserting an accessory into the incorrect port may damage the phone.

15
Battery use
The following topics explain how to care for your phone’s non-removable
batter y.
Battery cautions
Storage: Avoid storing or leaving the phone with no charge remaining.
Saved information and settings may become lost or changed, or the
battery may become unusable. Charge once every six months before
storing or leaving unused for a long period of time.
Charge the battery
Follow these instructions to charge your phone’s battery using either the
included AC adapter or via USB connection on your computer.
Charge using the AC adapter
1. Connect one end of the data cable to the USB port located on the bottom
of your phone.
2. Connect the other end to the power adapter.

16
3. Connect the power adapter to an electrical outlet to fully charge your phone.
•Use the power adapter that comes with your phone; using other adapters
may damage your phone.
•Charging your phone with a USB cable connected to a laptop will take
longer than with the power 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
phone may need a few minutes to build a charge before turning back
on. Playing games or performing other activities while charging may
drain the battery and cause it to power off.
•The battery will gradually discharge if it is left unused for an extended
period. Before using the battery again, you must recharge it in order to
power on and use your phone normally.

17
Install a SIM/SD card
Insert a Nano SIM/microSD card
1. Insert the included SIM tray pin into the tray slot and remove the SIM tray.
2. Place the Nano SIM card and microSD card (not included) with metal
contacts facing down into the tray.
3. Gently slide the SIM tray back into the slot.
microSD
nanoSIM
Pin
SIM tray

18
First Time Setup after Inserting an SD Card
When you insert an optional SD card for the first time, it is recommended that
you set up and format it on your phone.
Note: Formatting your SD card will erase all files on the card. Make sure to
back up your files in another location before formatting.
Set up an SD card
1. Swipe down on the Status bar.
2. Tap the SD card notification.
3. Select Phone storage or Portable storage.
Note: Setting your SD card as portable storage will allow you to transfer files
(videos, music, and photos) from your device to another device.
4. Tap Done.

19
Note: During the setup process, you may be prompted to format the SD card.
Follow the prompts to finish the formatting. You can also setup and format
your SD card via Settings menu, refer to the steps described below.
Format an SD card
1. From the Home screen, swipe up to access Apps and tap Settings .
2. Tap Storage .
3. Tap > SD CARD > Menu .
4. Select Format, then tap FORMAT SD CARD to confirm.
All data on the SD card will be erased, and the card will be formatted for use
on your phone.

20
Turn your phone on and off
The instructions below explain how to turn your phone on and off.
Turn your phone on
Power key
Press and hold the Power key until the device turns on.
Turn your phone off
There are two ways you can use to turn your phone off.
•Using Power key
1. Press and hold the Power key.
2. Tap Power off.
•Via Quick Settings Panel
1. Swipe down on the Status bar twice to enter Quick Settings panel.
2. Tap Power icon >Power off.
Power icon