Thank you, guys for your help! So, just to clarify. This is what I should change using d2x-cios-installer, right? I can't download ModMii since I don't have a PC, only a MacBook :(
From IOS245[56] (rev 65535, Info: d2x-v8final): Bug Trucha, Acceso NAND, USB 2.0
to IOS245[37] (rev 65535, Info...