Once the new screen is in place (lying on the keyboard like the old one was, assuming it has proper protection on the glass) We will need to reconnect the LCD cable.

Remember to do this in the reverse order that you did it previously. Lift up the tape and black portion of the cable so it doesn't accidentally stick to anything, then slide the gold connector into place, re-taping as necessary.

Make sure that the LCD cable is completely inserted into the socket. If partially inserted your screen may become backlit but have no image.