To transfer save data when doing things like changing your device, you need to store save data from the Change Devices menu.
Data communication is needed to store save data, so please do this in an environment with a good connection.
You also need a Nintendo Account to store save data. See this article if you do not have a Nintendo Account.
Note: Until the transfer is complete, please be sure Animal Crossing: Pocket Camp Complete is in a state where it is able to be played and do not uninstall it from your previous device.
▼Save-Data Transfer Process (iOS)
▼Save-Data Transfer Process (Android)
▼Storing save data on the device prior to changing devices
Tap "Menu".
Note: You can also store save data by going to "Before Changing Devices" from the title screen menu.
Tap "Misc.".
Tap "About Changing Devices".
Note: After storing save data, you cannot store save data again for 24 hours.
Tap "Store Save Data".
Note: Save data is stored for 7 days.
Log in with a Nintendo Account.
Tap "Let's do it!".
Wait until it finishes storing your save data.
You have then finished storing save data.
▼Transferring save data to the new device
Tap "Tap to start!".
Tap "Continue".
Log in to the Nintendo Account you used when storing the save data.
Tap "Let's do it!".
Wait until it finishes downloading your save data.
You have then finished downloading save data.