Solving the second layer

Before you start this step, flip the cube over so the face that is complete is now the bottom. In the pictures, this is the green side. Now, turn the top layer of the cube to match a “before” picture below. This will make an upside down “T” with one color. We will move that top middle piece to the correct spot on the middle row in this step. There are two ways to do this depending on which side the “T” is on when you’re looking at the cube. Make sure to find the correct starting picture before doing this step. Repeat this step with all four sides. (HINT: If you ever get stuck where there aren’t any useful pieces on the top layer then do one of the moves below in reverse.)