Excuse me. How could I transfer save data from version 5.5 to version 6.5 after I prepare to update to 6.5... Really worry to lose the process...
Hello, the simplest way to make sure your save isn't lost is to use the cloud save system.
in version 5.5, in the main menu, go to "Play/Synchronisation/Settings/Yes, this device only" then your save will be synced in the cloud.
Uninstall the game, install the update, and if the game doesn't relink to the cloud automatically, follow the (almost) same steps
"Play/Cloud save/yes, this device only". It will then download your save.
for extra caution, and to link the save between multiple devices, use the "yes, between multiple devices".
You'll be asked to create an account the first time, then simply log in and you're good to go :)