Board Thread:Love Live! School Idol Festival Lounge/@comment-28400440-20160507092353/@comment-11148831-20190119081609

Since the implementation of SIF ID (スクフェスID) last May 2018, it was no longer possible to link accounts to Google+/Game Center nor issue Transfer Passcodes. It is now only possible to transfer accounts through the following:
 * Inputting already existing Transfer Passcodes that were issued before May 2018
 * Inputting Transfer Passcodes issued by the KLab Support Team for you if you ask them for help in recovering your lost account
 * Logging in through SIF ID (スクフェスID)