Users who sideload Duo Mobile for Android: Upgrade to version 3.34.0

The latest release of Duo Mobile for Android will affect users who sideload the application to their device. Here is what you need to know.

Recommendation: Users who sideload should uninstall current version, reinstall Duo Mobile for Android version 3.34.0

With the release of Duo Mobile for Android 3.34.0, we recommend that users who sideload the app using the Duo Mobile APK follow the steps below to uninstall and then reinstall the app.

This will ensure that users will continue to be able to manually update the application in the future in order to continue receiving the latest Duo Mobile functionality and security updates.

Previously, users were able to update the app by installing a new APK over an installed older version, preserving existing settings. Due to an upgrade in the APK signing key for version 3.34.0, they will need to uninstall the older APK and then reinstall the new one.

Important: Duo-protected and third-party accounts will be deleted during uninstallation

Before following the steps below to uninstall and then reinstall the app, users should be aware that their Duo-protected accounts will be deleted by uninstalling the app. Any backups created by using Duo Restore will also be deleted when the app is uninstalled. Users will need to add their accounts back to Duo as if they were a new Duo user.

We strongly recommend that users who rely on Duo to protect third-party accounts such as Facebook or Instagram remove Duo as their authenticator from those accounts before uninstalling the app in order to avoid getting locked out of those accounts.

Instructions: How to perform the app reinstallation

Before beginning, review the information above about the impact of uninstalling the app on your Duo-protected accounts.

The following steps explain how to uninstall and then reinstall the app for users who sideload:

  1. To uninstall the existing Duo Mobile for Android app:

    a. Swipe up from the bottom to open the Apps drawer.
    b. Press and hold down the Duo Mobile icon.
    c. Select App info, then Uninstall. Confirm by tapping OK.

  2. To reinstall Duo Mobile for Android:

    a. Download the latest version of the Duo Mobile for Android APK.
    b. When the download is complete, tap the Open button from the message that appears on screen. You can also tap on the download notification in the notification drawer at the top of the screen.
    c. A prompt may appear indicating that the phone is not allowed to install unknown apps. If so, tap the Settings button in this prompt and then the toggle button to enable Allow from this source. Tap the back arrow to exit this screen and then proceed with installing the app.

Troubleshooting tips

Please note these instructions may vary based on the type of phone and operating system. In all cases, it is important to actually uninstall Duo Mobile and not simply remove the app’s shortcut icon from the phone’s home screen.

Future updates

If users choose not to update Duo Mobile for Android in this way, they will still be able to authenticate normally. However, we always recommend updating to the latest version of Duo software.

Once users update Duo Mobile for Android to version 3.34.0, they will be able to update in the future by using the established method of installing a new APK on top of an existing installation.

For more information about sideloading Duo Mobile, refer to the Duo Knowledge Base.