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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
titleStep 1 - AuthenticateClick to view step 1

  1. Log in to the My Cal Poly

 portal

  1. Portal.

Go to

  1. Click the Personal

Info tab > Personal Info portlet > Authorized Devices > 

  1. Info tab. Under Personal Info, select Authorized Devices. Open the Multi-factor Authentication

 > Edit.
My Cal Poly portal Personal Info portlet Authorized Devices Multifactor Authentication Edit ButtonImage Removed
Authenticate your account using the Call Me method on your landline or mobile phone.
Multifactor Authentication Pop-up Call me buttonImage Removed

  1. 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.
Multifactor Authentication Pop-up My setting and Devices device options Image Removed

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

    showing devices in square cells.Image Added


Step 2 - Reactivate

Reactivate multi-factor authentication by clicking the Reactivate Duo Mobile button. 
Multifactor Authentication Pop-up My setting and Devices device option reactivate duo mobile Image Removed
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.
Image Removed
Install Duo Mobile on your phone.  
Multifactor Authentication Pop-up Install duo mobile for iosImage Removed
On your mobile phone, launch the App Store app and search for Duo Mobile. Tap Get, Install to download the app, then Open.
iOS AppStore Duo Mobile installImage Removed
Tap Allow to allow Duo Mobile to send you notifications.
iOS allow duo mobile to send notificationsImage Removed
On your computer, click the I have Duo Mobile installed button.
Multifactor Authentication Pop-up Install duo mobile, I have Duo Mobile InstalledImage Removed
On your mobile phone, at the top right of the screen, tap the + button
Expand
titleStep 2 - Reactivate
Expand
titleStep 3 - Install
Click to view step 2

  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

Expand
titleClick to view step 3
Click OK 

  1. 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, tap the Add button at the top right of the screen to add an account.

Duo Mobile app plus iconImage Removed
  1. Mobile Duo App. Account Add button highlightedImage Added

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

Allow duo mobile to access cameraImage Removed
On your computer, scan the barcode to activate Duo Mobile.
Multifactor Authentication Pop-up Activate Duo scan barcodeImage Removed
You are now activated. Your device is ready to approve Duo authentication requests. Click the Continue button to add a second device.
Multifactor Authentication Pop-up Activate Duo mobile, activated, continue buttonImage Removed
  1. Under Add account, Use QR code button highlightedImage Added

  2. 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

  3. Click Continue to complete the process.

    Continue button highlightedImage Added

  4. 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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