I already did it in config settings and also in config.txt "device = sd" and it always looks for wii u hdd, the wii u hdd is on the back of the wii u with a y cable.
Cfg 70r78.11
Is there a version of CFG loader that detects SD first?
When I load the cfg loader while my Wii U hdd is plugged in, it freezes, Without that it works fine.