
thank you so much this fixed it for medo you need Mocha, or do you "only" want CFW to play games?
go to the boot menu and choose "sysmenu" for CFW, not mocha.
error code list
-3 = SD not found.
verify your SD is properly formatted to FAT32 (use Panasonic SD Formatter)
verify the homebrew launcher is in wiiu/apps/homebrew_launcher/ folder