HALP!
I updated my switch from 6.X to 7.X using choinNX . My switch was on real 6.X. I loaded up Choi. Pick the 7.0 folder. It did it's tests and said ready. I installed it. The only thing here was I chose 7.X instead of 7.X exfat. I apparently installed 6.X exfat before and didn't remember...