You'll have to call Nintendo and ask them to unlink the NNID from the old broken 3DS and tell them you got a new one. They'll probably ask you for the serial number of the old one, so have it handy.
You'll have to call Nintendo and ask them to unlink the NNID from the old broken 3DS and tell them you got a new one. They'll probably ask you for the serial number of the old one, so have it handy.
Shouldn't matter, unless you were using the secureinfo_A of a third 3DS (as in one you haven't mentioned) for the emuNAND, in which case you'll need that serial number instead.
Shouldn't matter, unless you were using the secureinfo_A of a third 3DS (as in one you haven't mentioned) for the emuNAND, in which case you'll need that serial number instead.