Device help
Get step-by-step help and info for your device.
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Access files downloaded from a web browser, email, and messages.
Access the web, access or edit bookmarks, access tabs, and access browser settings.
Download apps, games, movies, music, books, magazines, newspapers and more.
Discover how to use Google to back up contacts, photos, and files.
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.
Insert or Remove SIM & Memory Card
Learn how to install a SIM or memory card for your device.
Learn how to perform a soft, factory, or alternate master reset of your device.
Use AT&T Personal Cloud to back up and sync your contacts, photos, videos, and more from your device to the cloud.
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 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.
Manage call forwarding from your device.
Learn how to add, view, delete, customize by adding a picture or ringtone, and backup your contacts.
Make & Receive an AT&T Video Call
AT&T Video Call lets you make and receive HD Voice calls combined with real-time video.
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.
View cellular network signal, turn cellular data connection, international roaming, and mobile data connection on or off.
Learn how to turn Wi-Fi on or off, connect to a Wi-Fi network, and remove a Wi-Fi network.
Determine your device's SIM card type, operating frequencies, physical characteristics, storage, and more.
Learn How to Clean Your Device
Get tips on the best way to keep your device clean.
Set up your device for the first time or after a factory reset and use Setup & Transfer.
Find IMEI, Phone & Serial Number
Learn how locate your device's IMEI, serial number, and phone number.
Learn how to use air gestures and motions as well as access additional motions and gestures.
Add your Google account to sync Gmail, Chrome, YouTube, Google Maps, and More.
Insert or Remove SIM & Memory Card
Learn how to install a SIM or memory card for your device.
Learn how to 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, widgets, folders, wallpapers, home screen panels, and screen grid.
Learn how to block and unblock messages.
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 messaging settings such as notification alerts, Advanced Messaging, message limits, restore default settings, and emergency/AMBER alert settings.
Add and download email attachments, respond to an email and more.
Create and respond to text (SMS), Advanced Messaging, 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.
Learn how to use air gestures and motions as well as access additional motions and gestures.
Discover how to project photos, videos, and media on your device to a TV, tablet, computer, or other device.
Learn how to access and customize New Second Screen.
Learn how to use Multi Window, which allows you to have multiple apps open at the same time.
Accessibility features improve the usability of your device for users with impaired vision or hearing, cognitive difficulty, or reduced dexterity.
Find IMEI, Phone & Serial Number
Learn how locate your device's IMEI, serial number, and phone number.
Insert or Remove SIM & Memory Card
Learn how to install a SIM or memory card for your device.
Determine your device's SIM card type, operating frequencies, physical characteristics, storage, and more.
Learn how to set up your device as a personal hotspot and share your data connection with Wi-Fi-capable devices.
Learn how to add your email accounts so you can read and send email on your device.
Set up voicemail.
Use your Wi-Fi connection to talk and text when cellular coverage is limited or unavailable.
Use AT&T Personal Cloud to back up and sync your contacts, photos, videos, and more from your device to the cloud.
Back up & Restore with a Computer
Learn how to back up and restore your device using a computer.
Change the display brightness, time out, and orientation.
Learn & Customize the Home Screen
Make changes to apps, widgets, folders, wallpapers, home screen panels, and screen grid.
Learn how to access and adjust notification settings, turn notifications on or off, and more.
Learn how to lock or unlock your display, set a screen security lock type (intelligent scan, face, iris, fingerprint, pin, password, pattern, or swipe), get your PUK code, or request your device be unlocked from the AT&T network.
Change volume settings, ringtones, notification alerts, and use Do not disturb mode.
Learn how to swipe in the air to open apps or use features.
Learn how to use Multi Window, which allows you to have multiple apps open at the same time.
View and pay your AT&T bills online, manage your account, reset passwords, or upgrade your AT&T services.
Create memos with text, drawings, images, video, reminders, and more using QuickMemo+.
Discover how to project photos, videos, and media on your device to a TV, tablet, computer, or other device.
Learn how to access and customize New Second Screen.
Access the web, access or edit bookmarks, access tabs, and access browser settings.
Access the calendar on your device, and learn how to manage events.
Learn how to enable and adjust Comfort view in order to reduce eyestrain from blue light on the screen.
Listen to music and audio in immersive 3D sound that is balanced in a selected direction.
Use Multi Window to have two apps open at the same time.
Learn about EasyHome, which provides a simpler smartphone home screen experience.
The Floating Bar function can display app icons, web tabs, notifications, contacts, useful information, and more.
Learn how Google Assistant allows you to control your device and access voice control settings using voice commands.
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.
Use AT&T Personal Cloud to back up and sync your contacts, photos, videos, and more from your device to the cloud.
Manage camera and video settings including picture size, timer, voice control, and flash.
Learn what camera modes are available on your device and what each mode does.
Learn how to access the camera, take a picture, switch between front and rear facing camera, and more.
Learn how to take and access screenshots.
Learn how to record a video, capture images during video recording, and more.
Learn how to transfer photos and videos to or from your device and a computer.
Free apps typically get revenue through ads, pop-ups, or notifications. Learn how to manage these on your device.
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 (intelligent scan, face, iris, fingerprint, pin, password, pattern, or swipe), get your PUK code, or request your device be unlocked from the AT&T network.
Learn how to determine if you might have harmful software (malware) on your device and get tips to help fix the issue.
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 about EasyHome, which provides a simpler smartphone home screen experience.
Learn how to access and adjust notification settings, turn notifications on or off, and more.
Change volume settings, ringtones, notification alerts, and use Do not disturb mode.
Learn how to check available device storage, free up memory, remove unused apps, or clear app data.
Find IMEI, Phone & Serial Number
Learn how locate your device's IMEI, serial number, and phone number.
Learn how to perform a soft, factory, or alternate master reset of your device.
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 for the LG G8 (LM-G820UM)
Learn how to update the software of the LG G8 (LM-G820UM).
Determine your current device software version and check for updates.
Access Usage Manager to view data usage, see the apps using the most data, and set data limits.
Free apps typically get revenue through ads, pop-ups, or notifications. Learn how to manage these on your device.
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.
Android phones have a feature called Safe Mode, which can help you rule out problematic apps as the cause of your device problems.
Access voicemail, check voicemail messages, and view voicemail options.
Change or Reset Voicemail Password
Reset a forgotten password or change an existing voicemail password.
Set up voicemail.