Add an additional mobile device to Duo

We recommend that you add a second device in Duo in case you forget or lose your primary authentication device. 

1. On any computer, visit a site that is protected by Duo. A good example would be www.dropbox.com
2. Select Add a new device under the Davidson graphic.
3. Authenticate the way you might normally. 
4. On the What type of device are you adding? dialog box, click on the appropriate radio button and then click on the Continue button.

Mobile phone:

• Enter your cell phone number
• Confirm you entered your phone number correctly via the check box
• Click on the Continue button
• Select the type of phone (iOS or Android)
• Click on the Continue button
• Install Duo on the new mobile phone (if you haven't already), scroll down in the dialog box and click on the I have Duo Mobile button
• On the new mobile phone:
  - Open the Duo Mobile app
  - Tap the + button
  - Use the camera on your device to scan the barcode on the screen

Tablet:

• Select the type of tablet (iOS or Android)
• Click on the Continue button
• Install Duo on the new tablet (if you haven't already), scroll down in the dialog box and click on the I have Duo Mobile button
• On the new tablet:
  - Open the Duo Mobile app
  - Tap the + button
  - Use the camera on your device to scan the barcode on the screen 

• Enroll in Duo using a personal hardware token (fob)