Installing and replacing the PCI Express Mini Card for wireless WANconnectionBefore you start, print these instructions.Some ThinkPad models have a PCI Express Mini Card slot for connection to a wireless WAN. To replace thePCI Express Mini Card with a new one, read the following prerequisites.Prerequisites for the procedureDANGERDuring electrical storms, do not connect the cable to or disconnect it from the telephone outleton the wall.DANGERElectric current from power, telephone, and communication cables is hazardous. To avoid shockhazard, 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 metalobject. This action reduces any static electricity from your body. The static electricity could damage the card.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. Wait fora 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. For details, refer to the instructions in “Replacing the battery” on page 119.4. Remove the keyboard. For details, refer to the instructions in “Replacing the keyboard” on page 130.5. If a tool for removing connectors is included in the package with the new card, use it to disconnect thecables from the card. If no such tool is included, disconnect the cables by picking up the connectorswith your fingers and gently unplugging them.Note: Depending on the system configuration of your computer, the card may have only one connector.160 User Guide
