Samsung Galaxy Tab S7 5G (SM-T878U)

Device help

Explore tutorials and more for your device.
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Samsung Galaxy Tab S7 5G (SM-T878U)

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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 Samsung Galaxy Tab S7 5G (SM-T878U)

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Block calls

Block or unblock calls from your device. Block anonymous calls.

Call features

Get familiar with in-call options, including muting and speakerphone, as well as advanced call features, such as creating a conference 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.

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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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Specifications

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

User accounts

Find out how to create and manage separate user accounts for your device.

Activate device

Learn how to activate AT&T service and use the AT&T AllAccess app.

AT&T AllAccess

Use AT&T AllAccess to view data usage, set data usage alerts, pay bills, add features, 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 a factory reset.

Edge screen

Learn how to access, edit, and manage the Edge Screen.

Find IMEI & serial number

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

Gestures & motion

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.

Insert SIM & memory card

Get instructions about how to install a SIM or memory card for your device.

Keyboard & typing

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.

S Pen

Learn how to hand write memos, draw on screenshots, access S Pen settings, and more.

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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 Samsung Galaxy Tab S7 5G (SM-T878U).

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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Contacts

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

Messaging settings

Manage AT&T messaging settings.

Send & receive email

Add and download email attachments, respond to an email and more.

Send & receive messages

Create and respond to text (SMS) 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.

More Topics

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Access downloaded files

Access files downloaded from a web browser, email, and messages.

Browse the Web

Browse the web, add bookmarks, and access browser settings to clear history and block or unblock pop-ups.

Download apps & games

Download apps, games, movies, music, books, magazines, newspapers and more.

My Files

Use My Files to open and manage downloaded and device created files.

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Available memory

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

Backup & restore with computer

Backup photos, files, and contacts to increase device memory or transfer to another device.

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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Samsung Note

Learn how to access and use Samsung Note.

Screen projecting

Discover how to project photos, videos, and media on your device to a TV, tablet, computer, or other device.

TV Mode

How to set up and access TV Mode, adjust settings, and Enable/Disable using Quick Settings.

Calendar

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

Daily Board

Learn how to access and use Daily Board.

Dex

Learn how to access and use Dex.

Dual Media Stream

Learn how to set up and use Dual Media Stream. Dual Media Stream allows you to stream audio to up to two Bluetooth devices simultaneously.

Google Assistant

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

My Emoji

Learn how to create and use a personalized animated emoji in a message.

NumberSync

Learn how to use one smartphone number across multiple devices to send and receive texts, make and receive calls, and more.

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AT&T Messages

Bring together your call logs, voicemail, text, and multimedia messages into one inbox across devices.

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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 flash, timer, and more.

Take a picture or video

Learn how to take a picture or video, use the front and rear camera, switch between camera and video modes, and more.

Take a screenshot

Learn how to take a screenshot and immediately share or edit your screenshot.

Transfer photos & videos

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

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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.

Find My Mobile

Find My Mobile allows you to manage your device in a secure way by tracking and controlling your device remotely.

Secure Folder

Learn how to secure your personal content and keep it hidden on your device.

Secure my 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.

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, notification alerts and do not disturb.

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