How do you downgrade from NXE to the Blades completely?

[twesterm]

I'm pretty sure you can't, in fact, without doing shady stuff I'm positive you can't.

And if you do try to do it through shady dealings, it will make you update to NXE or else you cannot get online (assuming you want to go online).

The best you have is using the blades by pressing the guide button.