I've been doing some reading and it looks like a teensy is needed. I have one of these leftover from modding my ps3, but I'm curious if there's a software method to backup all areas of NAND on the Wii U? It looks like possibly just creating a rednand will create a complete backup, but is that of all areas of nand? The reason I'm looking for a software solution is I feel like I will then have no reason to open up my Wii U, unless I brick it, at which point I would open it up and solder in my teensy and restore the backup. In a related question, is there any definitive guide to wii U hardmodding? I saw a tutorial about dumping emmc, basically you just have to pull the clk line to get that to dump, but from what I understand there are several more areas of flash memory that need to be dumped.