About system transfers and Nintendo Network IDs
If you have registered a Nintendo Network ID on a Nintendo 3DS system (known as the "source" system), you can transfer this to a new system (known as the "target" system) along with the usage rights to data saved on your SD card, Nintendo DSiWare, your Nintendo eShop user history and balance, any save data from software pre-installed on the system, and Nintendo DS software settings.
It is not possible to perform the same function as a system transfer by registering the source system's Nintendo Network ID on the target system. To transfer data linked to a Nintendo Network ID, you must perform a system transfer.
For more information about performing system transfers between systems with registered Nintendo Network IDs, please contact our Nintendo Service Centre.