Duo - Updating Mobile Application for Single Sign On (SSO)

Duo requires users to utilize the latest version of the Duo Mobile app for improved security. This article outlines how to verify your version, complete the update, and provides alternative solutions for unsupported devices.

Objective

Duo is requiring all users to update their Duo Mobile application to the latest version as part of an update to improve their security certificate trust. To access university services, including Canvas, MyRED, MyBlue, Mavlink, and Firefly, you must update the Duo Mobile app on your mobile device by February 2, 2026. Outdated versions will no longer function for two-factor authentication after this date. 

Not all users will need to update their Duo Mobile application if their device automatically updates applications or if they downloaded/updated their Duo Mobile application after March 24, 2025. 

Instructions included in this article: 

• Confirming Duo Mobile Version
• Updating Duo Mobile on iPhone
• Updating Duo Mobile on Android
• Available Two-Factor Authentication Options for Older Devices
• Using a Duo Mobile Time-based One-Time Passcode (TOTP)

Users

• Current university members and affiliates
• Alumni and Emeritus 

Before You Begin - Confirm Duo Mobile Version

All university members who previously downloaded the Duo Mobile app should begin by confirming they have the most up-to-date version of the Duo Mobile application.

Follow the steps below to see if you have the most up-to-date version of the Duo Mobile application: 

1. Open the Duo Mobile app on your mobile device 
2. Select the hamburger menu icon (three horizontal lines) in the upper left corner

3. The current version on your device is listed at the bottom of the menu
   • If the version is 4.104.0.1485.1, no further action is required
   • If your version is not 4.104.0.1485.1, you do not have the most up-to-date version and will need to use the step-by-step instructions for your device type below

Updating Duo Mobile on iPhone

These instructions are intended for use by all university members and affiliates who previously downloaded the Duo Mobile app to an iPhone device and need to manually update to the latest version of the application. 

Follow the instructions below to manually update the Duo Mobile application on your iPhone device. 

1. Use your iPhone device to access the “App Store” application.

2. Tap your profile icon in the upper right corner of the screen.

3. Select “Apps”.

4. Begin typing “Duo Mobile” into the search field.

5. If there is an available update for the Duo Mobile app, the button will be labeled as “Update”. Tap “Update”. 

6. If prompted, enter your Apple ID Password or use Face ID/Touch ID to authorize the update.

 

 

Updating Duo Mobile on Android

These instructions are intended for use by all university members and affiliates who previously downloaded the Duo Mobile app to an Android device and need to manually update to the latest version of the application. 

Follow the instructions below to manually update the Duo Mobile application on your Android device. 

1. Use your Android device to access the “Google Play Store” application.

 

2. Tap your profile icon in the upper right corner of the screen.

 

3. Tap “Manage apps & device”.

4. Tap “See details”.

5. Tap “Update” next to the Duo Mobile app, or tap “Update all” for all pending apps. If Duo Mobile is not displayed, it indicates there are no pending updates available. 

 

Available Two-Factor Authentication Options for Older Devices

There are several available options for university members and affiliates who are unable to update the Duo Mobile application on their mobile device to the latest version due to the device limitations.  

• Outdated versions of the Duo Mobile application can still be used in most situations after February 2, 2026 using the Time-based One-Time Passcodes (TOTP). Follow the TOTP instructions below to access services using an outdated version of Duo Mobile. 
• Users may also request a YubiKey Security Key if they do not have a compatible mobile device. A Yubikey is a small physical USB device that enables two-factor authentication on your laptop or desktop device. This is an alternative option to using the Duo Mobile application on a personal mobile device.  
• Users who are interested in upgrading their mobile device to a Duo Mobile compatible model can visit or contact the HuskerTech Store for available options. 

 

Using a Duo Mobile Time-based One-Time Passcode (TOTP)

These instructions are intended for use by all university members and affiliates who need to use the Duo Mobile Time-based One-Time Passcode to access systems protected by single sign on (SSO). Please note: TOTP cannot be used for step-up authentication events.

Follow the instructions below to use the TOTP to complete SSO logins:

1. Enter your username and password.

 

2. Click “Other Options”.

3. Select “Duo Mobile Passcode”.

4.  Open the Duo Mobile app on your mobile device. 

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5. Tap the “TrueYou” option.

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6. The “TrueYou” option will expand showing a temporary passcode. This passcode will expire within 30 seconds. 

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7. Enter the temporary passcode from the Duo Mobile application into the “Passcode” field.

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8. Click “Verify”.

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