When it seemed that the Nintendo DS was no longer talking about since its last update in 2012, there were only two ways to hack it and it was with an application from the store (Flipnote Studio) or hardmodding (modifying the hardware).
Now things are somewhat different.
Best Regards!
NECESSARY FILES:
Memory PIT: http://biastonu.com/1Pm6
HBMenu: http://biastonu.com/1Ps7
UNLAUNCH: http://biastonu.com/1Q68
ALL FILES: http://biastonu.com/1fZyt