Thanks!
It wasn't clear in the guide that all the NNIDs get transferred (had I waited a day or so it wouldn't have been a problem I guess). I'll contact Nintendo.
Hi,
I installed A9HL on a n3ds using a DSWare title and a second 3DS with A9HL already installed. I followed 3ds.guide at the time and did a system format on the target 3DS etc. The installation went fine. I was able to do a system transfer to get the NNID back to the source 3DS (the one...