Flip over the internal framework with the newly attached drive. It should look like the first picture

Prepare the bottom housing for connection with the internal framework by connecting the antenna cables to the Broadcom AirPort card as shown

Arranging the antennas as pictured will ensure a smooth connection of the two large components

When setting the internal framework into the bottom housing, make sure the male connector on the interconnect board finds its way into the female connector on the logic board