Hacking Help with Gateway Required

[shanefromoz]

Hello,

I have an O3ds XL on 9.2.0-20E with menuhax installed.
I load the 3ds and it auto boots into Gateway mode.
If i eject the Gateway and put my Supercard in then press up and change boot mode to sysnand the Supercard does not load, the screen stays black.
Wondering if anyone could assist with this issue.

Thanks