I currently have the ability to install WAD's and am running USB-Loader. I read around that in order to run VC games from an SD. I was curious if updating to ver. 4.0 of the firmware would break what I have installed so far, and hinder my ability to install WAD's. Exp. If I want to play Legend of Zelda: Ocarina of Time, from VC, from my SD card, I would need to update to ver. 4 right?