Ah I see.That's what I meant, that itself works perfectly fine, it's just without libfat, some SD cards' read speed is slow as hell. But I tested it and it was stable.
So it's only Haxchi (HBL) with CFW that makes it fail?
One more thing, what are you using as a CFW?
Are you using a fw.img alongside CFW booter, sigpatcher by Dimok, or Mocha as the FW?
I think that might help narrow it down even more.








