Please Read the Instructions you should follow based on the Timeline.
TO Make White Cross
0:00 - 0:03 This Step Is Making The White Cross.
0:04 - 0:20 : First Put white edge pieces around the white center and align the side color also with its center.
0:21 - 0:30 : Keep continuing this step for each edge till all the edges are complete.
0:44 - 0:50 : Now You Should Have A White Cross On Your Cube.