Not every computer has a connectivity center, but most new ones do.
Like I said in step 11, "The connectivity center is the area on the front of the computer where there is many input sections, like usb, firewire, microphone, headphones, video, etc.". But this time, I will remove the whole component, not just unplug the cables\wires!
First thing, unscrew the single screw holding it in place. There might be a different amount of screws, in different locations on your computer, but just unscrew them all! One the screw[s] are removed, the whole component should slide into the inside of the computer, which can then be removed.
Just like every other step, refer to the pictures if you are confused!