Board Thread:Questions and Answers/@comment-5.40.43.249-20160611130129/@comment-25669516-20160612025752

On Android try Helium Backup app to transfer data. It works without root as well. You can get the app from Play Store and a tutorial is available on the Internet :)

If you don't have your old phone however then it is not possible to get your data back as the game does not have cloud save. You can still try contacting Gameloft Customer Care though and see if they might be able to help. I don't know about iOS...