Device help

Get step-by-step help and info for your device.

Access Downloaded Files

Learn how to access files downloaded from a web browser, email, and messages.

Browse the Web

Access the web, access or edit bookmarks, access tabs, and access browser settings.

Download Apps & Games

Download apps, games, movies, music, books, magazines, newspapers and more.

Back up & Restore with Google

Discover how to use Google to back up contacts, photos, and files.

Find My Device

Learn how you can help protect your phone from unauthorized use if it has been lost, stolen, or reset to factory settings without your permission.

Phone Assembly

Learn how to install and remove the battery, SIM card, and memory card (microSD).

Reset Device

Learn how to perform a soft, factory, or alternate master reset of your device.

Available Storage

Learn how to check available device storage, free up memory, remove unused apps, or clear app data.

Back up & Restore with Computer

Back up and restore your device with a computer.

Back up & Restore with Google

Discover how to use Google to back up contacts, photos, and files.

Airplane Mode

Learn how to turn Airplane Mode on and off using the Notification bar or through Settings.

Display

Change the display brightness, time out and orientation.

Optimize Battery Life

Tips and tricks to extend your battery performance.

Block or Unblock Calls

Block or unblock calls from your device. Block unknown calls.

Call Features

Learn what features are available for a phone call.

Call Forwarding

Manage call forwarding from your device.

Contacts

Learn how to add, view, delete, customize by adding a picture or ringtone, and back up your contacts.

Make & Receive an AT&T Video Call

AT&T Video Call lets you make and receive HD Voice calls combined with real-time video.

Wi-Fi Calling

Use your Wi-Fi connection to talk and text when cellular coverage is limited or unavailable.

Airplane Mode

Learn how to turn Airplane Mode on and off using the Notification bar or through Settings.

Bluetooth

Learn how to turn Bluetooth on or off, scan and connect to other Bluetooth devices, and unpair a connected device.

Signal & Cellular Data

View cellular network signal, turn cellular data connection, international roaming, and mobile data connection on or off.

Wi-Fi

Turn Wi-Fi on or off, connect to a Wi-Fi network, and remove a Wi-Fi network.

Activate New AT&T Prepaid® Service

Learn how to activate new AT&T Prepaid service and plan.

Device Setup

Set up your device for the first time or after performing a factory reset.

Find IMEI, Phone & Serial Number

Learn how to locate your device's IMEI, serial number, and phone number.

Gestures & Motion

How to use air gestures and motions, and access additional motions and gestures.

Google Sign-In

Add your Google account to sync Gmail, Chrome, YouTube, Google Maps, and more.

Keyboard & Typing

Access keyboard settings, use Swype, auto-complete suggestions, emojis, speech-to-text, and one-handed operation.

Learn & Customize the Home Screen

Make changes to apps, shortcuts, folders, wallpapers, and home screen panels.

Manage AT&T PREPAID Account

Change your AT&T PREPAID plan, check your balance, add money to your account and more.

Phone Assembly

Learn how to install and remove the battery, SIM card, and memory card (microSD).

Specifications

Determine your device's SIM card type, operating frequencies, physical characteristics, storage, and more.

Block or Unblock Messages

Learn how to block and unblock messages.

Contacts

Learn how to add, view, delete, customize by adding a picture or ringtone, and back up your contacts.

Email Settings

Manage email settings such as sync frequency, server settings, signature, removing an email account, and more.

Messaging Settings

Manage messaging settings such as notification alerts, Advanced Messaging, message limits, restore default settings, and emergency/AMBER alert settings.

Send & Receive Email

Add and download email attachments, respond to an email and more.

Send & Receive Messages

Create and respond to text (SMS), Advanced Messaging, or picture (MMS) messages, add, save, and view received attachments and more.

Set Up Email

Learn how to add your email accounts so you can read and send email on your device.

Gestures & Motion

How to use air gestures and motions, and access additional motions and gestures.

Screen Sharing

Discover how to project photos, videos, and media on your device to a TV, tablet, computer, or other device.

Accessibility

Accessibility features improve the usability of your device for users with impaired vision or hearing, cognitive difficulty, or reduced dexterity.

Find IMEI, Phone & Serial Number

Learn how to locate your device's IMEI, serial number, and phone number.

Phone Assembly

Learn how to install and remove the battery, SIM card, and memory card (microSD).

Specifications

Determine your device's SIM card type, operating frequencies, physical characteristics, storage, and more.

Activate New AT&T Prepaid® Service

Learn how to activate new AT&T Prepaid service and plan.

Manage AT&T PREPAID Account

Change your AT&T PREPAID plan, check your balance, add money to your account and more.

Set Up Email

Learn how to add your email accounts so you can read and send email on your device.

Set Up Voicemail

Set up voicemail.

Wi-Fi Calling

Use your Wi-Fi connection to talk and text when cellular coverage is limited or unavailable.

Display

Change the display brightness, time out and orientation.

Learn & Customize the Home Screen

Make changes to apps, shortcuts, folders, wallpapers, and home screen panels.

Notifications & Alerts

Learn how to access and adjust notification settings, turn notifications on or off, and more.

Secure My Device

Learn how to lock or unlock your display, set a screen security lock type, get your PUK code, or request your device be unlocked from the AT&T network.

Sounds

Change volume settings, ringtones, and notification alerts.

Screen Sharing

Discover how to project photos, videos, and media on your device to a TV, tablet, computer, or other device.

Browse the Web

Access the web, access or edit bookmarks, access tabs, and access browser settings.

Calendar

Access the calendar on your device and learn how to manage events.

Digital Wellbeing

Keep track of how long you view screens and set limits using Digital Wellbeing features.

Google Assistant

Learn how Google Assistant allows you to control your device and access voice control settings using voice commands.

Access, Store Photos & Videos

Learn how to access and store your photos and videos.

Advanced Photo & Video Features

Learn how to access and use Camera modes, effects, customization, and crop a photo.

Camera & Video Settings

Manage camera and video settings including flash, picture size, timer, and more.

Take a Picture

Learn how to take a picture, switch between front and rear camera, focus, and zoom.

Take a Screenshot

Learn how to take and access screenshots.

Take a Video

Learn how to record a video, focus the camera, and more.

Transfer Photos & Videos

Learn how to transfer photos and videos to or from your device and a computer.

Find My Device

Learn how you can help protect your phone from unauthorized use if it has been lost, stolen, or reset to factory settings without your permission.

Secure My Device

Learn how to lock or unlock your display, set a screen security lock type, get your PUK code, or request your device be unlocked from the AT&T network.

Accessibility

Accessibility features improve the usability of your device for users with impaired vision or hearing, cognitive difficulty, or reduced dexterity.

Date, Time & Alarm

Learn how to set the date and time on your device as well as use the alarm clock.

Display

Change the display brightness, time out and orientation.

Notifications & Alerts

Learn how to access and adjust notification settings, turn notifications on or off, and more.

Sounds

Change volume settings, ringtones, and notification alerts.

Available Storage

Learn how to check available device storage, free up memory, remove unused apps, or clear app data.

Find IMEI, Phone & Serial Number

Learn how to locate your device's IMEI, serial number, and phone number.

Reset Device

Learn how to perform a soft, factory, or alternate master reset of your device.

Software update for the AT&T Calypso 3 (U328AA)

Learn how to update the software of the AT&T Calypso 3 (U328AA)

Software Version

Determine your current device software version and check for updates.

View & Manage Data

Access Usage Manager to view data usage, set data limits, and see the apps using the most data.

App Troubleshooting

Learn how to troubleshoot apps by clearing the app cache, force stopping an app, checking for updates, removing an app, and reinstalling.

Reset Device

Learn how to perform a soft, factory, or alternate master reset of your device.

Access Voicemail

Check or access your voicemail messages.

Change or Reset Voicemail Password

Reset a forgotten password or change an existing voicemail password.

Set Up Voicemail

Set up voicemail.

Having device issues?

Fix common service and device problems.