isfshax is a coldboot boot1 exploit for Wii U that offers many useful features:
• Robust brick protection
• Stroopwafel CFW & plugins
• Rebuilding or upgrading the MLC
• Removing the 64GB MLC limit
• Coldbooting redNAND
credits: rw-r-r-0644, ShinyQuagsire, jan-hofmeier
site by YveltalGriffin