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Home » I switched/upgraded my phone and the Duo Mobile app does not work.

I switched/upgraded my phone and the Duo Mobile app does not work.

If you upgraded or changed your phone and you do NOT have your old device, please contact askit@yorku.ca or your local IT support group for assistance and do not proceed with the instructions below.

If you still have your old device, please read through:

Step 1: Go to Manage My Services and log in to Passport York

** If you enabled the "Yes, this is my device" setting, access https://mms.yorku.ca in incognito mode.

Step 2: If you have the automatic "Duo Push" set, select "Other options".

Step 3: Select "Manage devices".

Step 4: You will have to verify your identity using a previously known authentication factor before you are able to add, remove, or edit any of your devices.

Step 5: Once you have been verified, you will see the Device Management Dashboard, where you can Add, Delete, or Edit your devices.

Step 6: If this is a new phone with the same number, click "I have a new phone". Once you are prompted with the "Let's set up your phone" prompt, click "Get Started".

Note: To add a new phone with a new number, click on Edit, and then click Delete to remove your old device. Next, click on "Add a Device" and follow the steps in the FAQ on How to add a new device?

Step 7: If you have not already downloaded the Duo Mobile app, please download the app and then click on Next.

Step 8: Scan the barcode with the app's built-in barcode scanner OR click on "Get an activation link instead" and enter your email address to receive the activation link via email instead.

Note: If you selected "Get an activation link instead", you will receive an email from Duo Security with the subject line "Duo Mobile Activation". Please ensure you open the link on a device with Duo Mobile already installed and then click on "Activate Duo Mobile", or enter the activation code provided into Duo Mobile.

Step 9: The "Continue" button is clickable after you scan the barcode or successfully activate using the activation link emailed to you.

Step 10: The new phone is added and listed with your other devices. You can click "Add a device" to start the setup process again.

Back to FAQ page