So after the recent development with the Wii U, and the growing number of bricks, it is about time that we will finally have tools for the Wii U NAND. It isn't very different from the Wii NAND. (This thread is about the 512MB SLC, not the 8GB/32GB MLC) If you want to take proper dumps of your NAND, check out this homebrew: https://gbatemp.net/threads/nand-dumper-create-full-dumps-of-the-nand.465680/ Wii U NAND Extractor: Download (Source) Modified Wii NAND Extractor by parannoyed. Now supports Wii/vWii/WiiU (Full dump/redNAND dump/..) Place otp.bin in the directory of this program and load the dump. WiiUQt - Collection of Qt NAND Tools: Download (experimental) (Source) Collections of tools based on the WiiQt for the Wii. Note: To use those tools, you must have otp.bin in the directory of your dump. nandBinCheck - Verify integrity of NAND backups: Usage: nandBinCheck.exe <path to dump> <options> Run it without arguments for list of options. nandFixer - Fixing partial dumps (Making redNAND dump flashable): This tool add important missing metadata to the dump. Can be used to flash redNAND dump to SLC. Usage: nandFixer.exe <input rednand dump> <output dump> It is recommended to verify the newly created dump with nandBinCheck.exe <output dump> -all nandCbhcRemover - Fixing CBHC bricks: Note: Backup your nand and verify it with nandBinCheck before using this tool! This tool restore the backed up system.xml. Can be used to fix CBHC brick. Usage: nandCbhcRemover.exe <full slc dump> It is recommended to verify the updated dump with nandBinCheck.exe <output dump> -all Thanks to @Leeful that verified that both nandFixer and nandCbhcRemover can be used for unbricking! If you want to follow the efforts to unbrick Wii U, and for more info about Wii U hardmod, visit this thread.