AT&T Calypso (U318AA)

Device help

Explore tutorials and more for your device.
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AT&T Calypso (U318AA)

Device Image
Something not working with your device?

Fix common service and device issues.

Learn all about your device

Want to get to know your device a litte better? Explore features, find out how to keep it safe, and more.

Learn more about your AT&T Calypso (U318AA)

Articles

Block 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 backup your contacts.

Wi-Fi calling

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

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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.

Mobile hotspot

Learn how to set up your device as a personal hotspot and share your data connection with Wi-Fi-capable devices.

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.

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Activate AT&T PREPAID account

Learn how to activate an AT&T PREPAID account on your device, over the phone, or online.

Specifications

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

Cleaning your device

Get tips on the best way to keep your device clean.

Device setup

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

Find IMEI & serial number

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

Gestures & navigation

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).

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Available memory

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

Find IMEI & serial number

Learn how 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.

Safe Mode

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

Learn how to update the software of the AT&T Calypso (U318AA).

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.

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Ads, pop-ups & notifications

Free apps typically get revenue through ads, pop-ups, or notifications. Learn how to manage these on your device.

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.

Safe Mode

Android phones have a feature called Safe Mode, which can help you rule out problematic apps as the cause of your device problems.

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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.

More Topics

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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.

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AT&T Mobile Transfer

Move contacts, messages, music, and other data to your new device using AT&T Mobile Transfer.

AT&T Personal Cloud

Back up and sync your contacts, photos, videos, and more from your device.

Available memory

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

Backup & restore with computer

Learn how to back up and restore your device using a computer.

Backup & restore with Google

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

Backup & restore with memory card

Find out how back up contacts, photos, and files with a memory card to increase device memory or transfer to another device.

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Airplane Mode

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

Battery optimization

Tips and tricks to extend your battery performance.

Display

Change the display brightness, time out and orientation.

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Block messages

Learn how to block and unblock messages.

Contacts

Learn how to add, view, delete, customize by adding a picture or ringtone, and backup 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.

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AT&T Personal Cloud

Back up and sync your contacts, photos, videos, and more from your device.

AT&T TV

Watch, search, and record your favorite movies and shows, and turn your device into your remote control, with the AT&T TV app on your phone.

Calendar

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

Google Assistant

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

HBO Max

All of HBO together with new hits, classic favorites, plus new Max Originals.

myAT&T

View and pay your AT&T bills online, manage your account, reset passwords, or upgrade your AT&T services.

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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 storage location, flash, picture size, timer, and more.

Take a video

Learn how to record a video, capture images during video recording, 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.

Transfer photos & videos

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

Articles

Ads, pop-ups & notifications

Free apps typically get revenue through ads, pop-ups, or notifications. Learn how to manage these on your device.

Anti-theft

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 (pin, password, pattern, or swipe), get your PUK code, or request your device be unlocked from the AT&T network.

Viruses & Malware

Learn how to determine if you might have harmful software (malware) on your device and get tips to help fix the issue.

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Accessibility

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

Date & time

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

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

Sounds & alerts

Change volume settings, ringtones, and notification alerts.

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