To solve the Ganesha puzzle in The Lost Legacy in Uncharted: The Lost Legacy operate the two levers near the wall. Go back to the middle and turn the second outer dial to line up with the outer dial. Then go to the inner dial and align it with the second inner dial. Then, starting from the third outer dial, align each dial to the outer dials until all dials are aligned. Then go to the outer dial and align all the dials with the surrounding wall.
Then lower all of Ganesha’s arms all the way down.