Hacking Rosalina menu not working?

[ArviDroid]

Hi. I updated B9S and Luma successfully(?) a few days ago, but when I try to boot into the Rosalina menu it says

"An error has occurred:
Failed to mount CTRNAND.
Press any button to shutdown"

I can´t imagine that I screwed up on such simple instructions, but what else could have happened? And what can I do to solve this? Thanks in advance.

 

[GizmoTheGreen]

Rosalina menu meaning? in homemenu you hold L+down+select? then get the error?

 

[ArviDroid]

Rosalina menu meaning? in homemenu you hold L+down+select? then get the error?

Oh, I missread. I was supposed to press the buttons after booting the 3DS but I tried doing it while booting. Thanks for making me realize my mistake!

 

[GizmoTheGreen]

Oh, I missread. I was supposed to press the buttons after booting the 3DS but I tried doing it while booting. Thanks for making me realize my mistake!

no problem friend