Loadiine (v4) for 5.0.0\5.1.0 WiiU
Backup loader now ported for old 5.0.0 and 5.1.0 fimwares. Works great, only Kexploit is unstable.
Compatibility list same as for 5.3.2 version:
http://wiki.gbatemp.net/wiki/Loadiine_compatibility_list
Update. I see few games not work, like Super Mario Maker...
sorry, beein trying to find this file that's been right in front of me for a month now, only to find broken links, and google to prove that it's completely worthless.