I ordered it from www.realhotstuff.com and on the website, they have the flash cartridge listed with... Pre-updated for DSi v1.4.2 and 3DS v2.0 I'm checking my 3DS right now and on system settings it says "Ver. 2.1.0-4U" I bought this 3DS on August 9th at Wal-Mart and system updated it so I could access the eSHOP for the Ambassador stuff. So my question is.. when the cartridge arrives, will it work from the start with my 3DS? Or am I going to go need to get a friend and his DS Lite? Thank you for any help.