I've changed my phone. How can I login again and set up two-factor authentication?

In order to be able to login smoothly, as was the case before your new phone, you need to follow these steps:

1. Log in with a recovery code that you may have printed or saved at registration.  Each can only be used once.
2. Click on the 'Account’ wheel at the top right of the screen and choose ‘My Account'
3. Click on the ’Setup Authenticator App’ button
4. Follow the steps on the screens which follow, they are the same as when you first set up the Authenticator app on your previous phone