Device help
Get step-by-step help and info for your device.
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Learn how to access files downloaded from a web browser, email, and messages.
Access the web, access or edit bookmarks, access tabs, and access browser settings.
Download apps, games, movies, music, books, magazines, newspapers and more.
Discover how to use Google to back up contacts, photos, and files.
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.
Learn how to install and remove the battery, SIM card, and memory card (microSD).
Learn how to perform a soft, factory, or alternate master reset of your device.
Back up and sync your contacts, photos, videos, and more from your device.
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.
Discover how to use Google to back up contacts, photos, and files.
Learn how to turn Airplane Mode on and off using the Notification bar or through Settings.
Change the display brightness, time out and orientation.
Tips and tricks to extend your battery performance.
Block or unblock calls from your device. Block unknown calls.
Learn what features are available for a phone call.
Manage call forwarding from your device.
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.
Use your Wi-Fi connection to talk and text when cellular coverage is limited or unavailable.
Learn how to turn Airplane Mode on and off using the Notification bar or through Settings.
Learn how to turn Bluetooth on or off, scan and connect to other Bluetooth devices, and unpair a connected device.
View cellular network signal, turn cellular data connection, international roaming, and mobile data connection on or off.
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.
Determine your device's SIM card type, operating frequencies, physical characteristics, storage, and more.
Learn How to Clean Your Device
Get tips on the best way to keep your device clean.
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.
How to use air gestures and motions, and access additional motions and gestures.
Add your Google account to sync Gmail, Chrome, YouTube, Google Maps, and more.
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.
Change your AT&T PREPAID plan, check your balance, add money to your account and more.
Learn how to install and remove the battery, SIM card, and memory card (microSD).
Learn how to block and unblock messages.
Learn how to add, view, delete, customize by adding a picture or ringtone, and back up your contacts.
Manage email settings such as sync frequency, server settings, signature, removing an email account, and more.
Manage messaging settings such as notification alerts, Advanced Messaging, message limits, restore default settings, and emergency/AMBER alert settings.
Add and download email attachments, respond to an email and more.
Create and respond to text (SMS), Advanced Messaging, or picture (MMS) messages, add, save, and view received attachments and more.
Learn how to add your email accounts so you can read and send email on your device.
Back up and sync your contacts, photos, videos, and more from your device.
How to use air gestures and motions, and access additional motions and gestures.
Discover how to project photos, videos, and media on your device to a TV, tablet, computer, or other device.
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.
Learn how to install and remove the battery, SIM card, and memory card (microSD).
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.
Change your AT&T PREPAID plan, check your balance, add money to your account and more.
Learn how to add your email accounts so you can read and send email on your device.
Set up voicemail.
Use your Wi-Fi connection to talk and text when cellular coverage is limited or unavailable.
Change the display brightness, time out and orientation.
Learn & Customize the Home Screen
Make changes to apps, shortcuts, folders, wallpapers, and home screen panels.
Learn how to access and adjust notification settings, turn notifications on or off, and more.
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.
Change volume settings, ringtones, and notification alerts.
View and pay your AT&T bills online, manage your account, reset passwords, or upgrade your AT&T services.
Discover how to project photos, videos, and media on your device to a TV, tablet, computer, or other device.
Access the web, access or edit bookmarks, access tabs, and access browser settings.
Access the calendar on your device and learn how to manage events.
Keep track of how long you view screens and set limits using Digital Wellbeing features.
Learn how Google Assistant allows you to control your device and access voice control settings using voice commands.
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.
Back up and sync your contacts, photos, videos, and more from your device.
Manage camera and video settings including flash, picture size, timer, and more.
Learn how to take a picture, switch between front and rear camera, focus, and zoom.
Learn how to take and access screenshots.
Learn how to record a video, focus the camera, and more.
Learn how to transfer photos and videos to or from your device and a computer.
Free apps typically get revenue through ads, pop-ups, or notifications. Learn how to manage these on your 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.
Learn about the AT&T Secure Family app
Do your children have smart devices? Use Secure Family to locate their devices, manage their internet use, block apps or websites, and more.
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.
Learn how to determine if you might have harmful software (malware) on your device and get tips to help fix the issue.
Accessibility features improve the usability of your device for users with impaired vision or hearing, cognitive difficulty, or reduced dexterity.
Learn how to set the date and time on your device as well as use the alarm clock.
Change the display brightness, time out and orientation.
Learn how to access and adjust notification settings, turn notifications on or off, and more.
Change volume settings, ringtones, and notification alerts.
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.
Learn how to perform a soft, factory, or alternate master reset of your device.
Android phones have a feature called Safe Mode, which can help you rule out problematic apps as the cause of your device problems.
Software update for the AT&T Calypso 3 (U328AA)
Learn how to update the software of the AT&T Calypso 3 (U328AA)
Determine your current device software version and check for updates.
Access Usage Manager to view data usage, set data limits, and see the apps using the most data.
Free apps typically get revenue through ads, pop-ups, or notifications. Learn how to manage these on your device.
Learn how to troubleshoot apps by clearing the app cache, force stopping an app, checking for updates, removing an app, and reinstalling.
Learn how to perform a soft, factory, or alternate master reset of your device.
Android phones have a feature called Safe Mode, which can help you rule out problematic apps as the cause of your device problems.
Check or access your voicemail messages.
Change or Reset Voicemail Password
Reset a forgotten password or change an existing voicemail password.
Set up voicemail.