Some time ago, I realised I could use an old R4 in my CFW'd N3DS. So I bought one at my nearest shop (R4i 3DS RTS Wi-Fi R4i-SDHC.com). I used it as I would do in a DSi or DS. Later, I wanted to add someone to my Friends list. When I opened it, it said I was banned from online (002-0121).
I...