Replacing The Pci Express Mini Card For Wireless Wan - Lenovo ThinkPad X300 Series User Manual

metal object. This action reduces any static electricity from your body. The static electricity could damage
the card.

Replacing the PCI Express Mini Card for wireless WAN

1. Turn off the computer; then disconnect the AC adapter and all cables from the computer. Wait for a few
minutes, till the inside of the computer cools, before you start the following procedures.
2. Close the computer display, and turn the computer over.
3. Remove the battery.
4. Remove the keyboard.
5. If a tool for removing connectors is included in the package with the new card, use it to disconnect the
antenna cables from the card (1). If no such tool is included, pick up the antenna cables (1) with your
fingers and gently unplug them. Remove the screws (2) and the ground cable (3). The card pops up
(4).
Note: Some PCI Express Mini Cards have only one connector.