[brownhornet]

Thats not gonna work.. I downloaded his patch too and the only way youre going to downgrade is by doing toasts part 2 of his recovery method and following all of the instructions. ONLY then will you be able to flash the pc36img otherwise itll keep telling you that youre trying to flash an older version and fail. After that youll be able to run the ruu. Without doing that first, the ruu will get about halfway and fail everytime. TRUST ME...took me a whole day to figure out how to do it.

Edit: And this is assuming that you still have root access.