Just below the main stalk of the fan, there should be a switch for changing the direction of spin. Because the blades are slanted, one direction causes air to move up (for summer), the other direction causes air to move down (for winter).
Succeeded in changing the battery, but now there is a brown blotch at the top of the screen. What's more, the side just above the sim card does not now sit snugly into the frame.
