No. Bootmii will not allow you to flash a dump from another wii. It does this safety/sanity check for a good reason.Cant i just dump the nand from wii A, transfer it to wii B via SD and flash it with bootmii, de-solder the nand (from wii B that now has Wii A's NAND on it) and solder it to Wii A (with a switch to change the Nand)?