Bad news for those that plan on using a flash card with their 3DS -- if Nintendo detects that you've been dabbing with one, the company might send a firmware update that could possibly brick your system. According to GoNintendo, Japanese retailer Enterking posted a warning message on their site, suggesting that your system might be unbootable after a software update if Nintendo detects you've been using an R4. Enterking is not buying used 3DSs that have a history of using an illegal cartridge -- a transparent indication that
