Homebrew Is there a save manager that doesn't freeze on a 3DS?

[LeifEricson]

I'm trying to back up some of my game saves from my DS carts to use with my DSTWO, but it seems like every time I try to use the tool it freezes (when you eject the cart). Is there some sort of homebrew, either 3DS or DS, that allows me to back up game saves while using a 3DS?

 

[Jwiz33]

There is one where you can upload the save directly to a PC, but it requires a WEP connection. All the other ones require a slot-2 flashcart which, obviously, won't work on a 3DS.