Lenovo ThinkPad Edge E220s User Manual page 109

DANGER
Electric current from power, telephone, and communication cables is hazardous. To avoid shock
hazard, disconnect the cables before opening the cover of this slot.
Attention: Before you start installing a PCI Express Mini Card, touch a metal table or a grounded metal
object. This action reduces any static electricity from your body. The static electricity could damage the card.
Before you start, print these instructions.
If a Wireless WAN is available in your computer, to replace the PCI Express Mini Card, do as follows:
1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer.
2. Enter ThinkPad Setup to stop battery discharge. Refer to "Before replacing CRUs" on page 77 for
detailed information.
3. Close the computer display, and turn the computer over.
4. Remove the keyboard. For more details, refer to "Replacing the keyboard" on page 81.
5. If a tool for removing connectors is included in the package with the new card, use it to disconnect the
cables from the card. If no such tool is included, disconnect the cables by picking up the connectors
with your fingers and gently unplugging them.
Note: Depending on the system configuration of your computer, the card may have only one connector.
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Chapter 6 Replacing devices
91