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If you reset your phone to factory settings or replaced it with a new mobile phone but kept the same phone number, you may need to reactivate Duo Mobile. For example, your iOS device might ask you to Reconnect. Tap Reconnect, then follow these instructions.

Step 1 - Authenticate

Expand
titleClick to view step 1

  1. Log in to the My Cal Poly  portalPortal.

  2. Go to Click the Personal Info tab> . Under Personal Info > , select Authorized Devices > . Open the Multi-factor Authentication > click Edit.

    Personal Info panel displayed with Authorized Devices section highlighted and edit button highlighted.Image Removed

    Authenticate your account using the Call Me method on your landline or mobile phone.

    Device type and number. Call Me button highlightedImage Removed

    dropdown. Click Edit.

Cal Poly Portal page with Authorized Devices outlined in red.Image Added

  1. Click Other options.

    Other options link highlightedImage Added

  2. You’ll be prompted to authenticate now, but do not respond to the prompt. Wait until Step 6 to authenticate instead.

  3. Select Manage devices. This tab is located at the bottom of the list.

    Manage devices menu item selected.Image Added

  4. Choose the phone number you wish to reactivate from the dropdown list, then select an authentication method. Complete the verification on your currently enrolled device.

    Devices drop-down list highlighted.Image Added

  5. Once authenticated, you will

be directed to My Settings & Devices. To the right of your mobile device, click the Device Options button.
My Setting and Devices tab. Device Options button highlightedImage Removed

  1. see a page that lists your devices in square cells.

    showing devices in square cells.Image Added


Step 2 - Reactivate

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titleClick to view step 2

  1. Reactivate multi-factor authentication by clicking the Reactivate Duo Mobile button. 

    My Setting and Devices tab. Reactivate Duo Mobile button highlightedImage Removed

  2. Verify ownership of your mobile phone number by clicking the Call me button. Answer your phone and enter the 6-digit code you are given, then click the continue button.

    Verify Ownership of phone number. Continue button highlightedImage Removed

  3. Select your phone type and click the Continue button.

    What type of phone is phone number. Phone type selected. Continue button highlightedImage Removed

...

  1. Click I have a new phone (continued from Step 1 above).

    I have a new phone link highlighted.Image Added

  2. Click the Get started button.

    Get Started button highlighted.Image Added

  3. Complete the re-enrollment by inputting your information following the instructions in the corresponding prompts. See details in Step 3 below…

Step 3 - Install Duo Mobile App & Add Device

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titleClick to view step 3

  1. On your mobile phone, install the Duo Mobile app. After installing the app, return to your computer and click I have Duo Mobile.

    Install Duo Mobile for iOS tab. 'I have Duo Mobile Installed' button highlightedImage Removed

    Download the Duo Mobile app from the App Store or Google Play on your mobile device. Click Next.

    Duo-enroll-Next.pngImage Added

  2. On your mobile phone, at tap the Add button at the top right of the screen , tap the Add + button to to add an account.

    Mobile Duo App. Account Add button highlighted

  3. Tap Use QR code. You may need to allow access to the camera on your phone. 

    Under Add account, Use QR code button highlighted

  4. On your computer, scan the QR code to activate Duo Mobile.

    Activate Duo Mobile for iOS on computer. QR code highlightedImage Removed

  5. Click the Continue button Using the Duo app's camera preview screen displayed on your phone, point your phone at the QR code on your computer screen to complete the activation.
    When done successfully, the QR Code will become grayed out with a green check.

    QR code greyed out with green dot check mark over it.Image Added

  6. Click Continue to complete the process.

    Activate Duo Mobile for iOS. QR code has a check mark. Continue button is highlightedImage RemovedContinue button highlightedImage Added

  7. On your phone, name the account and tap Save. Your account is now linked. Click Practice now to learn how to use Duo and follow the prompts. When asked, tap the blue Allow notifications button to receive notifications, then the Ok button.

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