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If you had cloud backup on your old iOS or Android device, you can use that to recover your account details for the new device. Find out more about how to restore account credentials with the Microsoft Authenticator app on Microsoft's help pages.
If your phone number has not changed but you do not have a backup and if you have already set up SMS as an authentication method, you can use this to prove your new device. If you have a completely new device and telephone number please contact the IT Services team via Surrey Support or call +44 (0) 1483 689898 to reset your account.
If you had cloud backup on your old iOS or Android device, you can use that to recover your account details for the new device. KA-02043 100 IT Multi-factor authentication Published