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Move contacts, messages, music, and other data to your new device using AT&T Mobile Transfer.
Learn how to turn Bluetooth on or off, scan and connect to other Bluetooth devices, and unpair a connected device.
Learn how to set up your device as a personal hotspot and share your data connection with Wi-Fi-capable devices.
View cellular network signal, turn cellular data connection, international roaming, and mobile data connection on or off.
Learn how to activate an AT&T PREPAID account on your device, online, or over the phone.
How to use air gestures and motions, and access additional motions and gestures.
Access keyboard settings, use Swype, auto-complete suggestions, emojis, speech-to-text, and one-handed operation.
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.
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.
Create and respond to text (SMS), Advanced Messaging, or picture (MMS) messages, add, save, and view received attachments and more.
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.
Learn how Google Assistant allows you to control your device and access voice control settings using voice commands.
Look at photos, watch videos, listen to songs, and more in just a few taps.
Learn how to access and use Camera modes, effects, customization, and crop a photo.
Manage camera and video settings including storage location, flash, picture size, timer, and more.
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 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.
Accessibility features improve the usability of your device for users with impaired vision or hearing, cognitive difficulty, or reduced dexterity.
Learn how to access and adjust notification settings, turn notifications on or off, and more.
Learn how to update the software of the AT&T Calypso (U318AA).
Learn how to troubleshoot apps by clearing the app cache, force stopping an app, checking for updates, removing an app, and reinstalling.