This is my setup: PS Vita 1000 at 3.60 Henkaku Enso with 16GB Vita Memory Card and SD2VITA 200GB.
What I did: I removed my ux0:tai folder from both my memory card and SD2VITA, moving it to ur0. Afterwards, I wanted to edit my config.txt so I moved it to my computer, edited it, then deleted it...