Install the Wireless WAN and LAN PCI Express Mini Cards:
Position the Wireless WAN card in the socket on a 45 degree angle.
Rotate the card down until secured by the latches.
Connect the main and auxiliary antenna cables. Note: To install the Wireless LAN PCI Express Mini Card, use the same procedure; however, two screws are used to secure the card instead of the spring latch.
Install the upper cover:
Position the top cover over the base and depress along the edges to seat the latching tabs.
Connect the fingerprint reader cable to the ZIF connector on the system board.
Turn the system over.
Install the six screws.
Turn the system over and open the cover.
Install the keyboard
Position the keyboard over the palm rest and connect the keyboard cable to the system board.
Align the top edge of the keyboard with the bezel, and seat the keyboard.
Close the cover, and then turn the ThinkPad over.
Secure the keyboard with the four screws.
Install the battery pack:
Position the battery pack into the machine, using the side rails as a guide.
Slide it in until secured by latch two, and then lock latch one.