On the 3DS app, choose "Save Data Transfer" and then "Send MH Gen save data" to upload your character to the server.
: While equipment and rank mostly carry over, certain elements like Hunters for Hire and Meownster Hunter expedition progress are reset. On the 3DS app, choose "Save Data Transfer"
Q: Are there any risks involved in transferring save data? A: Yes, there are risks involved, including data corruption, loss, or incompatibility issues. On the 3DS app
: Approximately 231 blocks (28.49 MiB) of free space on your 3DS SD card. Official Transfer Process there are risks involved