CyberHyperPhoenix
"Download Complete."
Apparently its update data that could be potentially causing it. There was a theory I saw on the thread for this that suggested that at the main menu, the game is saving data and people are exiting the game, without people knowing its saving the game.It only bricks the console if you try formatting the console's memory or fiddling around with the save data.
It appears to be save file corruption.