How do I reactivate Duo Mobile when I get a new phone?

When you get a new phone, you normally have the same number, but you need to reactivate the Duo Mobile app so that you can receive a Push notification.

NOTE: You must have your smartphone and your computer to complete these instructions. Some steps require a computer and some steps require a smartphone.

Reactivating Duo Steps

  1. Download and install the Duo Mobile app on your new phone.
  2. Switch to your computer. Go to this web page:
  3. Click on the link on the left (under the large orange and blue Bucknell "B") that says My Settings and Devices.

    You will be prompted to authenticate. This step is required. You can do this step as long as the number associated with your account has not changed or you have a passcode generator. 

  4. To authenticate, use one of the following methods under Authentication Methods to authenticate. Once you have authenticated move on to the next section: Add a new device with the same number.

Authentication Methods

Receive 10 passcodes via text message


Generate a Duo SOS Emergency Passcode (Student Only)



Generate a Passcode with a Code Generator



Add a new device with the same number

  1.    Once authenticated, you'll see your various devices. Click on the "Device Options" button to the right of your new iPhone or Android

  2. Once you click on that button, you should see an option to Reactivate Duo Mobile.

  3. Verify your new phone type and click continue.

  4. Select "I have Duo Mobile installed".
    • If the app is not currently installed on your device, use your device app store to install it.  
  5. Switch to your phone. On your phone open your Duo Mobile App (enable camera if asked).
    • If you have an account, click on the account and scan the QR code by holding the phone as if you are taking a picture of your computer screen.
    • If you do not have an account listed click on Add Account (+) and click on scan the QR code by holding the phone as if you are taking a picture of your computer screen.

  6. Duo Mobile account successfully added when you receive the green check mark over your QR code.

What If I have a new phone number?

If you got a new phone that has a different phone number, you can use the instructions in this article: - How do I access Bucknell resources if I lose access to my Duo multi-factor authentication device?

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Article ID: 99
Fri 11/22/19 10:52 AM
Thu 1/6/22 11:11 AM