1.Before removing the WWAN card:

• Remove the AC power.
• Remove the battery.
• Remove the hinge cover.
• Remove the keyboard.
• Remove memory DIMM A.
  

2.Locate the WWAN card.

3.Disconnect the two cables from the WWAN card.

4.Pull the two securing levers away from the WWAN card, and then remove the card.

5.Lift the WWAN card to a 45-degree angle.

6.Lift the WWAN card out of the slot.

7.Reverse the previous steps to replace the WWAN card.