Hacking My r4 won't start.

[pokemonkickbutt]

I'm not sure what happened to it, it was working fine before.I'm not sure if it's because i got a usb adapter to go with my micro sd after losing my memory card one.It wouldn't work for some reason and was being iffy.and after that my r4 started just going to a black screen when i click on it from the ds screen. I'm not sure what to do.