How to solve the center layer of the Rubik’s Cube
The picture on the left is what your cube should look like at this point. Now we are going to do the center layer. The top or white part should end up intact after every move from this point forward. If it does not then you have done something wrong.
The first thing to do is find one of the edges that needs to be put in the center layer.
They will be in the bottom layer or in the center layer in the wrong spot. Try to find one on the bottom layer. Now turn the bottom layer until the edge piece you are trying to move is facing you, then do the following move depending on the position of the desired direction, as seen on the images below.
If you could not find any edge piece on the bottom layer then just do the move above and the cubelet that is in the center layer will the be on the bottom.
Now if the cubelet went to the correct place but is backwards then do the move again and then realign as was first stated and do it one more time. Your Rubik’s Cube should now look like the picture below. So move on to the bottom layer section.