<p>Download the free ActiveArmor app to: </p><ul><li>Help block spam and fraud calls</li><li>Secure your device and the stuff on it</li><li>Get notified of data breaches</li></ul>

Get the AT&T ActiveArmor app

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Device Help & How-To Guides - AT&T

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This tutorial describes how to share files.

File sharing

This tutorial shows the steps to access the IMEI, phone, &amp; serial number.

Find IMEI & serial number

Learn how to update the software of the AT&amp;T Velocity (MF923).

Software update for the AT&T Velocity (MF923)

This article describes how to find the software and firmware version.

View device software version

Update device software, check data use, and manage device memory with ease.

This article describes what to do if there is limited or no connectivity.

Limited or no connectivity

This article describes what to do if the network is not found.

Mobile hotspot Wi-Fi not found

This article describes how to reset the device to its factory settings.

Reset device

This article describes how to troubleshoot roaming problems.

Roaming troubleshooting

Explore ways to resolve device issues or reset your device.

Tips &amp; tricks to extend your battery performance.

Battery life

This tutorial shows how to charge the battery.

Charge the battery

Learn ways to manage battery usage and set up power saving options.

Access web manager

Learn how to connect your device to the hotspot using Mac OS X.

Connect Mac to Wi-Fi

Learn how to connect your mobile device to Wi-Fi.

Connect mobile device to Wi-Fi

Learn how to connect to the hotspot using Windows.

Connect Windows to Wi-Fi

Connect WPS devices

Connected devices

Data usage

Learn how to use the Dual-Band Wi-Fi feature.

Dual band Wi-Fi

Guest Wi-Fi

View cellular network signal and your mobile data connection status.

Signal & cellular data

USB tether to your device

Learn how to view the Wi-Fi connection details for your device.

Wi-Fi connection details

Change the network name and password for your device.

Wi-Fi network name and password

Use hotspots, connect to Wi-Fi, turn data on or off, and more.

This article provides an overview of the device&#39;s specifications.

Specifications

Get tips on the best way to keep your device clean.

Learn How to Clean Your Device

This article describes how to connect to a network.

Connect to AT&T Network

This article provides an overview of the Device layout.

Device layout

This tutorial shows how to assemble the device.

Insert SIM & memory card

This article provides an overview of the home screen.

Learn the home screen

This article describes how to find your wireless number.

My wireless number

Shows the notifications and icons of the device

Notifications & icons

Power device on or off

View and delete messages and alerts on your device.

View messages

Set up and adjust your email or messaging settings with ease.

Forgot web manager log on

This article describes how to lock and unlock the screen.

Secure my device

Wi-Fi security

Learn how to find your device and secure your info.

This article describes how to Optimize the Wi-Fi signal strength.

Adjust Wi-Fi range

This article describes how to block/unblock devices from connecting.

Block or unblock devices

This article provides an overview of the screen settings.

Screen

Check your battery life, adjust sound, set up alerts, and more.

Device help

Having device issues?