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Learn more about your Samsung Galaxy Express 3 (J120A)
Make and receive high-definition voice calls (Clear conversations and reduced background noise)
Start a flow to troubleshoot call forwarding or caller ID issues.
Turn Bluetooth on or off, scan and connect to other Bluetooth devices, and unpair a connected device.
Set up your device as a personal hotspot and share your data connection with Wi-Fi-capable devices.
View cellular network signal, turn international roaming or your mobile data connection on or off.
Determine your device's SIM card type, operating frequencies, physical characteristics, storage, and more.
Add shortcuts and widgets, access the notification panel, changing wallpaper, and more.
Change your ATnT PREPAID plan, check your balance, add money to your account and more.
Learn how to update the software of the Samsung Galaxy Express 3 (J120A).
Reset a forgotten password or change an existing voicemail password.
Learn how to manage your voicemail, including recording a personal greeting and changing your password.
Backup Google account data in the event you have to replace or reset your device so you can restore later.
Backup contacts, photos, and files to increase device memory or transfer to another device.
Start a flow to troubleshoot backup, sync, restore or transfer issues.
Manage email settings such as sync frequency, server settings, signature, deleting an email account, and more.
Create and respond to text (SMS) or picture (MMS) messages, add, save, and view received attachments and more.
Add an Exchange account to sync email, contacts, calendar, and notes to your device.
This tutorial shows how to access and use the DIRECTV app if your are a DIRECTV subscriber.
Look at photos, watch videos, listen to songs, and more in just a few taps.
Manage camera and video settings including flash, timer, voice control, recording mode, storage location, and more.
Take and edit a picture or video, use the front and rear camera, and switch between camera and video modes.
Find out how our apps can help keep your mobile data secure and prevent fraud and nuisance calls
Lock or unlock your display, set a screen security lock type (pin, password, pattern, or fingerprint), get your PUK code, or request your device be unlocked from the ATnT network.