Device help
Get step-by-step help and info for your device.
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Use My Files to open and manage downloaded and device created files.
Download apps, games, movies, music, books, magazines, newspapers and more.
Use My Files to open and manage downloaded and device created files.
Access the web, access or edit bookmarks, access tabs, and access browser settings.
Access the web, access or edit bookmarks, access tabs, and access browser settings.
Discover how to use Google to back up contacts, photos, and files.
Learn how you can use Find My Device to manage your device in a secure way by tracking and controlling your device remotely.
Insert or Remove SIM & Memory Card
Get instructions about how to install or remove a SIM or memory card in your device.
Learn how to perform a soft, factory, or alternate master reset of your device.
Learn how to check available device storage, free up memory, remove unused apps, or clear app data.
Back up & Restore with a Computer
Learn how to back up and restore your device using a computer.
Backup & Restore with Memory Card
Find out how to back up contacts, photos, and files with a memory card to increase device memory or transfer to another device.
Discover how to use Google to back up contacts, photos, and files.
Learn how to transfer your data and apps from your old device to your new one.
Learn how to turn Airplane Mode on and off using the Notification bar or through Settings.
Tips and tricks to extend your battery performance.
Change the display brightness, time out and orientation.
Block or unblock calls from your device. Block anonymous calls.
Get familiar with in-call options, including muting and speakerphone, as well as advanced call features, such as creating a conference call.
Learn how to add, view, delete, customize by adding a picture or ringtone, and backup your contacts.
Learn how to use one smartphone number across multiple devices to send and receive texts, make and receive calls, and more.
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.
Learn how to set up your device as a personal hotspot and share your data connection with Wi-Fi-capable devices.
Learn how to use Samsung SmartThings to connect to and control a wide range of devices.
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.
Find out how to create and manage separate user accounts for your device.
Learn how to activate AT&T service and use the AT&T AllAccess app.
Use AT&T AllAccess to view data usage, set data usage alerts, pay bills, add features, and more.
Set up your device for the first time or after 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.
Insert or Remove SIM & Memory Card
Get instructions about how to install or remove a SIM or memory card in your device.
Access keyboard settings, use swype, auto-complete suggestions, emojis, and speech-to-text.
Learn & Customize the Home Screen
Make changes to apps, widgets, folders, wallpapers, home screen panels, screen grid, and home touch buttons.
Determine your device's SIM card type, operating frequencies, physical characteristics, storage, and more.
Bring together your call logs, voicemail, text, and multimedia messages into one inbox across devices.
Learn how to add, view, delete, customize by adding a picture or ringtone, and backup your contacts.
Manage email settings such as sync frequency, server settings, signature, removing an email account, and more.
Manage AT&T messaging settings.
Add and download email attachments, respond to an email and more.
Create and respond to text (SMS) 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.
Accessibility features improve the usability of your device for users with impaired vision or hearing, cognitive difficulty, or reduced dexterity.
Learn how to use one smartphone number across multiple devices to send and receive texts, make and receive calls, and more.
Change the display brightness, time out and orientation.
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.
Discover how to use Google to back up contacts, photos, and files.
Insert or Remove SIM & Memory Card
Get instructions about how to install or remove a SIM or memory card in your device.
Learn & Customize the Home Screen
Make changes to apps, widgets, folders, wallpapers, home screen panels, screen grid, and home touch buttons.
Learn how to set up your device as a personal hotspot and share your data connection with Wi-Fi-capable devices.
Learn how to access and adjust notification settings, turn notifications on or off, and more.
Learn how to transfer your data and apps from your old device to your new one.
Discover how to project photos, videos, and media on your device to a TV, tablet, computer, or other device.
Learn how to lock or unlock your display, set a screen security lock type (face, fingerprint, pin, password, pattern, or swipe), get your PUK code, or request your device be unlocked from the AT&T network.
Learn how to add your email accounts so you can read and send email on your device.
Change volume settings, ringtones, notification alerts and do not disturb.
Determine your device's SIM card type, operating frequencies, physical characteristics, storage, and more.
Use your Wi-Fi connection to talk and text when cellular coverage is limited or unavailable.
Learn how to use one smartphone number across multiple devices to send and receive texts, make and receive calls, and more.
Samsung Free allows you to quickly set reminders, create voice dictation, search and access content on your phone and on the internet.
Discover how to project photos, videos, and media on your device to a TV, tablet, computer, or other device.
Learn how to use two applications at the same time using the split-screen functionality of Multi Window.
How to set up and access TV Mode, adjust settings, and Enable/Disable using Quick Settings.
Access the calendar on your device and learn how to manage events.
Learn how Google Assistant allows you to control your device and access voice control settings using voice commands.
All of HBO together with new hits, classic favorites, plus new Max Originals.
View and pay your AT&T bills online, manage your account, reset passwords, or upgrade your AT&T services.
Access the web, access or edit bookmarks, access tabs, and access browser settings.
Access the web, access or edit bookmarks, access tabs, and access browser settings.
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.
Manage camera and video settings including flash, timer, and more.
Learn how to take a picture or video, use the front and rear camera, switch between camera and video modes, and more.
Learn how to take a screenshot and immediately share or edit your screenshot.
Learn how to transfer photos and videos to or from your device and a computer.
Learn how you can use Find My Device to manage your device in a secure way by tracking and controlling your device remotely.
Learn how to secure your personal content and keep it hidden on your device.
Learn how to lock or unlock your display, set a screen security lock type (face, fingerprint, 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 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, notification alerts and do not disturb.
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.
Software update for the Samsung Galaxy Tab A (8.4) (SM-T307U)
Learn how to update the software of the Samsung Galaxy Tab A (8.4) (SM-T307U).
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.
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.