Duo - Reactivate My Phone


  • How do I reactivate my phone for Duo? (same phone number)


  • Oregon State University
  • Student, Employee or Associate
  • Duo-enrolled
  • Duo-enabled phone


If your phone is your only Duo device and it becomes deactivated from Duo, you may be without any means to complete Duo authentication. Common situations are:

  • New phone with the same phone number
  • Phone is wiped to resolve a technical problem
  • Removed the Duo Mobile app (removing the app will not un-enroll you from Duo)

If your phone number has not changed, the self-service tool can be used to reactivate your phone to allow you to complete Duo authentication.

Important Note: This self-service reactivation tool requires that the phone number be unchanged. If the phone has a different number, you will need to contact the Service Desk or your IT support team to help you activate the phone.

To reactivate a phone with the same number:

  1. Go to duo.oregonstate.edu
  2. Select "Reactivate your phone"
  3. Login with your OSU account if prompted
  4. You should see a welcome screen:

  1. Click the green "Enter a Passcode" button
  2. You will see the following screen.

  1. Follow on-screen instruction steps (2) and (3) to obtain the passcode, and then login.
    • If you did not receive the passcode, please note that your phone number must be the same as the one you registered for Duo.
  2. You should see the following screen:

  1. If the Duo Mobile app is not installed, you will need to install it before you continue.
  2. Select the phone to reactivate.
  3. You will receive a text message on your phone with further instructions and the reactivation link.

If the reactivation was not successful or for other assistance with Duo, please contact your department's IT Helpdesk, or the IS Service Desk

100% helpful - 1 review


Article ID: 69334
Thu 12/20/18 2:10 PM
Tue 5/21/19 8:36 AM