Make sure you are using a true SANDISK 2 GB SD card. Format the card to Fat32 and extract the the hackmii installer directly to your SD card. Sometimes you may have to power on the Wii first, select the SD card icon then insert the card. Sometimes inserting the card before powering on the Wii works. I don't recall any modmii in any of our guides, although it has been awhile since I have read one. Are you Using a guide found here at Wiihacks? I presume your Wii is a 4.3??
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