Device help

Find step-by-step help for your device.

Browse device topics

Articles

AT&T Navigator

Get directions and navigation using AT&T Navigator.

Browse the web

Learn to browse the web and manage tabs and bookmarks.

Browser options

Access browser settings to delete browser history, set the home page, and more.

Download apps & games

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

Remove an app

Remove an icon from your home screen and delete apps from your device.

Social media

Stay connected by using a social media app or aggregator.

View or close running apps

How to view, switch between, and close running applications

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Backup & restore with computer

Learn how to backup and restore contacts & data on the device with a computer.

Backup & restore with memory card

Backup and restore contacts, photos, & files using a memory card.

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Battery life

Tips & tricks to extend your battery performance.

Charge the battery

How to charge your battery.

Articles

Block or Unblock Calls

Block or unblock calls from your device.

Call forwarding

Learn how to manage call forwarding from your device.

Conference calling

Add another person to your call, merge calls, place someone on hold and more.

Caller ID

Learn how to show or hide your caller ID when making calls.

Contacts

Add, view, delete, and customize contacts by adding a picture or ringtone.

In-call options

Learn what features are available while on an active call.

Make & receive a call

Place, receive, & reject a call.

Speed dial

Learn how to use speed dial and manage speed dial contacts.

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Airplane mode

Learn how to turn Airplane mode on and off.

Bluetooth

Turn Bluetooth on or off, scan and connect to other Bluetooth devices, and unpair a connected device.

Connect to AT&T Microcell

Learn how to connect your mobile device to AT&T MicroCell.

Mobile hotspot

How to set up your device as a mobile hotspot to share your data connection with Wi-Fi-capable devices.

Signal & cellular data

View cellular network signal, turn international roaming or your mobile data connection on or off.

Wi-Fi

How to connect your device to a Wi-Fi network.

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Action Center

This article provides an overview of Action Center.

Device layout

Provides an overview of the device layout.

Device set up

Set up your device for the first time or after having done a factory reset.

Gestures & navigation

Control your device by making specific movements with your hand.

Keyboard & typing

How to use the keyboard, use speech-to-text, access keyboard settings, and more.

Learn & customize the home screen

Add shortcuts and widgets, access the notification panel, changing wallpaper, and more.

Microsoft sign-in

Sign in using your Microsoft account to access Xbox LIVE, Windows Phone Store, and more.

Phone assembly

How to install the battery, SIM, and memory card (for applicable devices).

Power device on or off

Turn your device on and off.

Search

Perform a text and voice search on your device and how to adjust search settings.

Specifications

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

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Block messages

Learn how to block messages from your device.

Email settings

Manage email settings such as sync frequency, server settings, signature, deleting an email account, and more.

Messaging settings

Set text (SMS) and picture (MMS) message alerts, limits, display options and more.

Send & receive email

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

Send & receive messages

How to send, receive, and delete picture (MMS) and text (SMS) messages.

Set up corporate email

Add your Exchange email account to sync email, contacts, calendar, and notes to your device.

Set up personal email

Add your personal email account to sync email, contacts, calendar, and notes to your device.

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Screen projecting

Project photos, videos, and media on your device to another device (TV, tablet, computer, etc.)

Voice control

Use voice commands to control your device and access voice control settings.

Calendar

Learn how to access the calendar and manage events.

Cortana

How to set up and use Cortana, a personal assistant that provides help whenever you need it.

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Camera & video settings

Manage camera and video settings including flash, timer, voice control, recording mode, storage location, and more.

Play music

Play music, turn the music player off.

Take a picture or video

Take screenshots, 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.

View & share photos or videos

Access, view, and share your photos and videos.

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Anti-Theft

This article describes the anti-theft feature of the phone.

Secure my device

Lock the device screen, set and change security lock, and locate device.

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Accessibility

Turn on features such as TalkBack, Hearing aid mode, and more.

Change wallpaper

This article describes how to change the wallpaper, or background, of the home screens.

Date & time

Set the date & time.

Display

Change the display time out, brightness and orientation.

Sounds & alerts

Change volume settings, ringtones, and notification alerts.

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Available memory

Check the available device storage.

Find IMEI & serial number

View the device IMEI, phone, SIM (ICCID) & serial number.

Software update for the Nokia Lumia 635

Learn how to update the software of the Nokia Lumia 635.

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, & see the apps using the most data.

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Reset device

Learn how to perform a soft and factory reset of the device.

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Access Voicemail

Check your voicemail messages.

Change or reset voicemail password

How to troubleshoot the voicemail feature.

Set Up Voicemail

Set up voicemail on your device.

Having device issues?

Fix common service and device problems.

Get the AT&T ActiveArmor app

Download the free ActiveArmor app to:

  • Help block spam and fraud calls
  • Secure your device and the stuff on it
  • Get notified of data breaches
Download ActiveArmor app from the App store
Download ActiveArmor app from the Google Play store
Get the AT&T Device Help app

Use the device help app to:

  • View customized device tutorials
  • Run device health check
  • Get help with common device issues
Download Device Help app from the App store
Download Device Help app from the Google Play store