I'm not too sure if this is new but recently a friend of mine bought a used 3DS on eBay for $100. However he was unable to connect to eShop even on FW8.1, there is always an error code 005-5964 though he could watch movie on youtube just fine. He already tried changing NinID, region, formatting all, reconfiguring connection, wifi, router,... everything to no avail. Therefore, he tried to look for a solution on the internet and the only thing to do with this error code is to contact Nintendo. He tried to send some mails but ran out of patient. Then I asked him to get Nintendo by phone and surprisingly Nintendo told him that the money added for shopping on eshop was from a fraud Credit Card so there is the block. We tried to contact the guy who sold him the 3DS and he said his kid come to his friend's house and somehow used his friend's father's Credit Card to buy a $50 eshop card without his knowledge and added into the 3DS so he believed the friend's father asked the bank to take some actions. Later the 3DS went weird and he didn't know how to fix it so he decided to sell it to get a new 3DSXL for his kid. Due to not living in the US, my friend explained the situation to Nintendo. They told him that they have no support in the country he is living and asked him to ship them the 3DS. He is still deciding whether to send them the 3DS or not as it would cost him more than planned. So in general, I believe Nintendo can ban a 3DS from entering eShop permanently, it just that they didn't do it to the flashcart user yet. What is your opinion?