Why would you want to get rid of an update? Just curious.
They fixed something in a game that I want to check out. The only reason I bought the game was for this, and I forgot and updated it lol
This might invalidate your savegames.
Alternatively, if you're up to it, you could take the HDD out of the caddy, plug it into your PC and use a homebrew XTAF partition explorer to find the update and delete it.
I was also wondering this, I updated in the middle of the game.
Would the process of using a partition explorer go against any TOS?