i'm pretty sure you cant, but i could be mistaken, in teh case i'm right on the money and you can the cheapest and inexpensive way is NTRBOOT w/ an R4i Gold + (it has a switch to go between ntrboot and dsflashcard) or AK2i (but you need access to a DSi/DSPhattie/Lite if you dont have a second pre-hacked 3DS if you use an AK2i due to it got cart blocked w/ 4.5+ FW.)