When it comes to emulating Nintendo’s most iconic motion-control era, Dolphin is the gold standard. But a common hurdle for newcomers is the hunt for a "Wii BIOS." If you’re looking for a single file to drop into a folder to make everything work, here is the secret: in the traditional sense.
Since there isn't a single "BIOS file" for the Wii like there is for the PlayStation, you instead install the to Dolphin's virtual NAND. Method 1: Perform an Online System Update (Recommended) bios wii dolphin exclusive