I have done 100's of PS3's and Jtag/RGH too. I had it where it was assigned a drive letter. I just wouldn't read it. Win32diskimager kept giving me an error saying the disk was too small.Wired it up and down about 10 times so far and wii U works perfect. Have done 1000's of xbox rgh and 1000's of ps3 downgrades so this is insanely easy. Looking for a 3v3 point to try and power externally. Probing mobo now. I'll let you guys know if I find anything worth sharing.