Hacking DSi downgrade, Black Screen when booting up SUDOKU

[Milo5789]

Hey! Well, TITLE! I bought SUDOKU, patched the app ands the savedata, when I boot the game to see if it's working the exploit, the screen goes black and the 3ds turns off...

According to Plailect...
"If your game has an error about boot.nds, then the exploit has been successful"
But, what is this error? The one I described??? I need advice on this :/

Thnx in advance

 

[Milo5789]

MODs you can delete this from existance. I already fixed it using Plailect's Troubleshooting from http://3ds.guide using "Broken DS/DSi mode after completion of the guide"