Black screen.

So this is what happened :o.
First i wanted to download Mario luigi inside bowser story.
I downloaded all the things i had to ( i have r4sdhc)https://www.romulation.org/forum/index.php?topic=22731.0
This is the topic.
But when i start up my ds it freezes and gives me a black screen.I asked my question like a week ago, and i have still no answer.Rutger-

Did you follow these instructions?
https://www.romulation.org/forum/index.php?topic=22731.msg374187#msg374187You still need the R4 SDHC firmware, you just run the AKAIO 1.4.1 firmware from the menu like you would a game.

I also downloaded the 1.54 firmwire