Japanese retailer Enterking has announced that it will not accept Nintendo 3DS gaming consoles that have been used with a hacked memory card for trade-in. So how will the retailer will know? Simple. Because the portable gaming console logs all activity, which can then be retrieved by those in the industry who know how. It is an attempt by Nintendo to deter pirates.
The most common card used is the R4 and some Japanese hackers can already install illegal DS ROMS but not games. Since the system keeps track of any and all hacks and has a Wi-Fi connection, it could also let Nintendo block pirated devices from accessing online services and games.