What guide did you follow? Was you friend's Wii a relatively new Wii (less than two years old)? I'm assuming the first time it didn't offer Boot2 install of BootMii. What do you mean by wired controller --- GC controller to control the NAND backup, etc? Did you install Priiloader? If so, you should be able to use the GC controller --- turn it on and immediately hold down the reset button on the console to gain access. It sounds like it works, just that the controller(s) are non-responsive; is this correct?