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Get help with the AT&T ActiveArmor app

Learn how to troubleshoot issues with the AT&T ActiveArmor mobile security app. Steps may vary by phone manufacturer.

Access & subscription

If you can’t access the AT&T ActiveArmor® app or are unable to change your subscription, the app and our network may be out of sync. 

Here’s how to resync:

Android®

Turn off Wi-Fi® so you have a cellular-only connection.

  1. Open Settings, then select Connections.
  2. Turn off Wi-Fi.

iPhone®

Turn off Wi-Fi so you have a cellular-only connection.

  1. Open Settings, then select Wi-Fi.
  2. Turn off Wi-Fi.

With your Wi-Fi off, try to access the app or change your subscription.

Heads up: If you don’t have an AT&T plan with unlimited data, data charges may occur.

Still can’t access ActiveArmor?

You may need to delete or uninstall and reinstall the app:

Android

  1. Open Settings, then select Apps, and tap See all apps.
  2. Select AT&T ActiveArmor.
  3. Select Uninstall and confirm by tapping OK.

iPhone

  1. Press and hold the AT&T ActiveArmor app.
  2. Select Remove App, then Delete App.
  3. Tap Delete to confirm.

Still can’t change your subscription?

  • If you added ActiveArmor mobile security through AT&T, call 611 or 800.331.0500 to speak with a rep.
  • If you subscribed through your app provider and want to downgrade from advanced mobile security to the free version, you’ll have to get help from your app provider.

FYI: If you have a business account, contact your account or IT manager for support.

Get more info on using the AT&T ActiveArmor app

Battery use for iOS

The iOS® battery usage chart may cause you to think the AT&T ActiveArmor app is using more battery than it is. The app works in the background to keep you safe from online threats. Battery usage percentage can vary by customer and changes throughout the day.

How to read the iOS battery usage report:

  1. Go to Settings.
  2. Tap Battery Health & Charging.
  3. Select the tab for the Last 10 days.
  4. Tap Battery Usage by App, then Show Activity. The Activity column shows the battery percentage by each app for the last 10 days. This number reflects the true usage. It’s not unusual for ActiveArmor to be in the 15% to 25% usage range or higher.

Good to know: The total battery usage by app will add up to 100% whether you have one or 10 apps working in background.

Theft alerts for Android

Set up Theft Alerts

AT&T ActiveArmor® advanced mobile security1 can provide info when one of the following actions has been taken on your Android device:

  • Multiple failed PIN or passcode attempts
  • SIM card removed or replaced
  • Airplane Mode turned on
  • Phone has been turned off
  • ActiveArmor app uninstalled

To receive alerts:

  1. Enter a valid email address during app setup or anytime in the app in Theft Alerts.
  2. Make sure your phone has a screen lock such as a PIN, pattern, or password.
  3. Grant app permissions so ActiveArmor can access system info.

Customize and test alerts

Choose which alerts you want to receive:

  1. Open the ActiveArmor app.
  2. Go to Theft Alerts.
  3. Toggle the alerts you want on or off.

To test alerts, tap Send me a sample alert. You’ll get an email with your phone's location and photo.

Theft Alert troubleshooting

If you expect a Theft Alert email but don’t get one:

  • Check your spam or junk folders
  • Make sure your email displays images
  • Open the email on a desktop browser

FYI: Alerts may not capture a photo if the lighting is poor or the phone shuts down too quickly. You’ll get another alert if another trigger is detected.

Suspend wireless service

If you think your phone has been stolen, you can If you have any questions or need assistance, suspend your service and block your device so that you don't incur any unwanted charges.

To prevent unauthorized account changes, turn on wireless account lock.

See all important details

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Last updated: January 14, 2026

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