Board Thread:Love Live! School Idol Festival Lounge/@comment-25902615-20150309005613/@comment-24187738-20150405181322

Personal preference. Keeping one around can be useful in case you lose your phone or break it by accident. Just be sure to record down the number carefully along with the date and time you requested it from the app, and remember that codes expire after a year without being used, or when a new code is requested.

Also, be certain not to let anyone else know this code as they can steal your account with it.