Hey there. I can't seem to unlock the last system sector in Traverse Town. It is the one in which the ultimate reward is the Lionheart keyblade. I have beaten the game already and saved the clear data, and I have also done all other quests for Cid. I read someplace that I need the final upgrade to the Scan ability. Is this true? If it is of any importance towards unlocking the sector, my stat matrix is not complete yet. Thanks.