Black screen but doesn't work

[Haxel59]

"Otherwise, you should just see a black screen, this is a good sign. To see if it works, open Notepad and press some buttons on the 3DS, they should show up. You can also test if the joystick works by going to Configure USB Game Controllers in Control Panel, it shows up as vJoy." I have the black screen but when i use my keys i can't write anything (but LRX works)