Device help
Find step-by-step help for your device.
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Articles
Browse the web, use browser tabs and bookmarks, and access browser settings to clear history, manage pop-ups, adjust text size, and more.
Download apps, games, movies, music, books, magazine, newspapers and more.
Use My Files to open and manage downloaded and device created files
Move or uninstall Apps from your home screen, and delete apps from your device.
How to view, switch between, and close running applications.
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Backup & restore with computer
Backup and restore your device with a computer.
Backup Google account data in the event you have to replace or reset your device so you can restore later.
Backup & restore with memory card
Backup contacts, photos, and files to increase device memory or transfer to another device.
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Tips and tricks to extend your battery performance.
Tips on charging your battery.
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Add, view, delete, and customize contacts by adding a picture or ringtone.
Learn what features are available while on an active call. Use your volume, hold, mute and speaker phone buttons; access your contacts, dialpad and home screen; return to an active call and end a call.
Place, receive, and reject a call.
Make & receive an AT&T Video Call
AT&T Video Call lets you make and receive HD Voice calls combined with real-time video.
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Airplane Mode disables all wireless services (calls, data and text messages) on the device. Disable Airplane mode to restore regular functions.
Turn Bluetooth on or off, scan and connect to other Bluetooth devices, and unpair a connected device.
Use your ATnT device as a mobile Wi-Fi hotspot to share your data connection with Wi-Fi-capable devices such as: smartphones, tablets, netbooks, MP3 players, and more.
View cellular network signal, turn on or off international roaming, and your mobile data connection.
How to connect to a Wi-Fi network.
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Set up your device for the first time or after having done a factory reset.
View data usage, set data usage alerts, pay bills, add features, and more.
Set up your device for the first time or after having done a factory reset.
Control your device with specific hand movements to access Notifications and Quick Settings, wake your screen, use various features.
Add your Google account to access Play Store, sync Gmail, Chrome, YouTube, Google Maps, and more.
Install and remove the SIM and memory card (MicroSD).
Navigate your keyboard, copy and paste text, use speech-to-text, and access keyboard settings.
Learn & customize the home screen
Choose your wallpaper, update your home screen panels, set your Home touch buttons, change your home screen grid and add the Apps tray icon to your home screen.
Turn your device on and off.
View your device's SIM card type, OS, network technology, operating frequencies, physical characteristics and storage.
Create and manage separate user accounts for your device.
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Access and manage email settings such as signature, sync frequency, delete an account, and add an account.
Manage messaging settings such as notification alerts, message limits, emergency/AMBER alert settings.
Send and receive email, add and download email attachments, refresh the inbox, respond to an email, view and save an attachment, and delete an email.
Create and respond to text (SMS) or picture (MMS) messages, add, save, and view received attachments, respond to messages, and delete a message.
Add your email account to sync email, contacts, calendar, and notes to your device.
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Use voice commands to control your device and access voice control settings.
Access the calendar to create, edit and delete events.
Watch, search, and record your favorite movies and shows, and turn your device into your remote control, with the DIRECTV app on your phone.
All of HBO together with new hits, classic favorites, plus new Max Originals.
Use one smartphone number across multiple devices to send and receive texts, make and receive calls, and more.
Photos, videos, and media
Look at photos, watch videos, listen to songs, and more in just a few taps.
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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.
Transfer media to & from computer
Transfer files to or from your device and a computer.
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Android Factory reset protection allows you to prevent non authorized users from accessing your device if it's been lost, stolen, or reset to factory settings without your permission. Only someone with the associated Google account or screen lock information can use the device.
Reset a forgotten pattern lock.
Lock or unlock your display, set a screen security lock type (pin, password, or pattern), get your PUK code, or request your device be unlocked from the ATnT network.
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Turn on features such as TalkBack, Hearing aid mode, and more.
Set the date and time. Set, disable, and delete alarms.
Change the display time out, brightness and orientation.
Learn how to access and adjust notification settings, and turn notifications on or off.
Change volume settings, ringtones, and notification alerts.
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Check the available device storage.
View the device IMEI, phone and serial numbers.
Learn how to update the software of the AT&T Trek 2 HD (K88).
Determine your current device software version and check for updates.
View data usage, set data limits, and see the apps using the most data.
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Use application manager to improve your app and device performance.
Perform a soft, factory, and alternate master reset of the device.
