That’s used in case your primary and secondary phone numbers don’t work. The next item to check is your recovery code.

Want a better option for your second factor? Give Authy a try instead of Google Authenticator. It’s a good idea to put another number in just in case your lose your phone. If that special backup phone number is an ex, here is the place to change it. Is that number still correct? I know mine wasn’t! It was my old landline I disconnected. In case you lose your phone, it’s nice to have a backup phone listed. If your 2FA test above worked, your phone number is probably correct. First, has your phone number changed? Tap edit to change the phone number. While you are in that 2FA screen, there are some important settings you should check to make sure they are still valid.

You should have 2FA setup everywhere: Here is our guide to why and where to set it up. If your code works, great! If not, go ahead and fix it now before you need it. Open up a private browsing session in your favorite browser and try to log into your Dropbox account. Are you sure it’s working, though? Will your security code work if you need it? Now is the time to check. Again, here is our guide to setting it up. If you haven’t set up 2FA, now is the time to do it.

Change dropbox phone number