USB loader gx problem

[Jaybird11]

with some of the roms i downloaded, they have blank channels with no main channel banner animations, and when i open them, it just returns to the wii menu. what's going on?
also, how am i supposed to convert the .nkit.iso file for pokemon colloseum into a gbc file?

 

[jeannotte]

Hello,

translate Nkit files to iso ==>https://gbatemp.net/download/nkit.36157/

and it will work.