How to sync new device?

Hi, my son has been playing on my wifes iphone but we recently pulled out an old kindle for him to play on. When I try to log him in using her FB info, we get the message “you have already authorized MSMX2”.

I guess this is why he doesn’t have access to his unlocked bikes etc.

5 posts were merged into an existing topic: Transferring game Data to new account?