Thanks for help, actually it was IOS 56, not IOS61...
but Modmii dont have the IOS56 v5661, just IOS56 v5662... I installed in my Wii, everything works fine.
But when trying to uptade the d2x cios v10 beta 52, continues asking for v5661...
So I tried to download through NUSD v15 and v19.... No...