How to connect my guest account to facbook account

Hey @Franzizzzz

Guest accounts cannot be linked to Facebook. You can have two separate accounts if you want. The Guest account saves the progress to the device. If you encounter corrupted data or delete the app the game progress you've achieved will be lost. For those with a Google, Apple, or Facebook account we recommend syncing up those accounts to NBA Live Mobile so your progress is saved to the cloud. 

Hope that clears up any confusion. Good luck on the courts!