User Guide

1. Turn off the computer and disconnect it from ac power and all cables.
2. Remove the keyboard. See “Replacing the keyboard” on page 113.
3. Remove the wireless-WAN card by doing the following:
Note: A film might cover the wireless WAN card. To access the wireless WAN card, open the film first.
• If a tool is provided with the new wireless-WAN card to help you disconnect cables, use the tool to
disconnect the cables from the wireless-WAN card. Otherwise, hold the cable connector with your
fingers and gently disconnect each cable from the wireless-WAN card
1 .
• Remove the screw
2 . The wireless-WAN card is released from the secured position and pivots
upward.
• Carefully remove the wireless-WAN card out of the slot
3 .
4. Align the contact edge of the new wireless-WAN card with the key in the slot. Then carefully insert the
new wireless-WAN card into the slot at an angle of about 20 degrees
1 . Pivot the wireless-WAN card
downward
2 . Install the screw to secure the wireless-WAN card in place 3 . Connect the cables to the
wireless-WAN card
4 . Ensure that you attach the red cable to the main connector and the blue cable to
the auxiliary connector on the wireless-WAN card.
Chapter 10. Replacing devices 119