Here's my situation.
My oldest son has a 3ds. As a family we have a WiiU. Both units are using the same network ID.
We are buying my youngest son a 3ds. And I am also buying myself a 3ds xl so all 3 of us can play together.
I would like to have the existing network ID assigned to my new 3ds xl and set both boys up with their own Nintendo IDs moving forward. However I don't want my oldest boy to lose all his game saves if I do this.
So what I'd like to know is:
1) Can I somehow back up my sons current game saves to an sd card so he can use them with a new Network ID on his existing 3ds?
2) Can I "take over" his current network ID without any disruption to his game saves? (Most - if not all are retail games - not downloaded)
3) What is the easiest way to accomplish this if it's even possible?
Many thanks!