I need to re-activate Duo Mobile. If you have a new phone (or have done a factory reset on an existing phone) and have kept your phone number, you will need to re-activate the Duo Mobile app. Your options here depend on what devices you have on your account. If you cannot log in to your account using an alternate means, you will need to reach out to the UT Helpdesk for identity verification and assistance.

Printable version:

For the PDF version please click here

You will need:

• Your new phone - SAME PHONE NUMBER
• A computer

On your phone:

Install Duo Mobile from your app store/play store if it isn’t installed from a backup

On your computer:

Follow the steps below to reactivate Duo on your phone.

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Remember to restart your phone every so often so the push notifications continue to work.

• To learn more about using self-service to manage your devices, please see Duo's help page.
• If you are working on an IOS device, you need to allow the Duo Mobile app to access your camera. If you've already said no:
  • Go to "Settings" (for your phone)
  • Scroll down the left to the list of apps and select "Duo Mobile"
  • On the right, select "Privacy"
  • Make sure the toggle for the Camera is on
• To install the Duo Mobile app on your mobile device:
  • Apple: appstore.com/apps/duomobile (Open in App Store)
  • Android: https://play.google.com/store/apps/details?id=com.duosecurity.duomobile (Complete action using Play Store)
  • Other: search "duo mobile"

Reviewed March 16, 2026