I was using USB loader GX
it works fine with all my singing games (disney sing it, boogie...and others)
however, i want to plug 2 microphones in order to play multiplayer mode
i burned the game and run it with
(1)disc channel
(2)soft chip r99 -----only cios 249r14 works----- loca] error with cios,222,223, or others
(3)neo gamma r7

they work fine but the second microphone cannot be recognized
only the Mic at left USB port (slot 2?)-- wii is in standing position-- works

the current situation
3.3U
cios rev 14
cios 222 v4 (38 merge 36)
cios 223 v4 (38 merge 36)

by the way
USB loader only works when HD is at right USB port (slot 1)

so i wonder,
is slot 2 unable to recongnize USB microphone?
is there is anything i can do
please tell me
thanks