Failure to follow these instructions could result in damage to your equipment and may void your warranty. Installing the AirPort Card requires seven basic steps: · Turn off the computer. · Open the computer. · Remove the heat shield. · Remove the installed AirPort Card, if applicable. · Install the replacement AirPort Card. · Replace the heat shield. · Close the computer. Note: A video version of the replacement instructions is available at http://www. apple. com/installparts Tools Required · Jeweler's flat-blade screwdriver · Phillips screwdriver Electrostatic Discharge (ESD) Static electricity, a normal and natural phenomenon, builds up on your body as you walk around. You experience an electrostatic discharge (ESD) when you touch an object and feel a spark. ESD can cause damage to the internal components of your computer. Avoid walking around while performing this procedure, and follow the instructions carefully when you are asked to discharge static electricity. Installing an AirPort Card To install an AirPort Card in your PowerBook, follow these steps: 1 2 Place your computer on a clean, flat surface. Shut down your computer, remove the battery from the expansion bay, and disconnect the power adapter, modem, and any other cables connected to the computer. Warning: Always turn off your computer before opening it to avoid damaging its internal components. Warning: The internal components of your PowerBook may be hot. If you have been using your PowerBook, wait 30 minutes after shutting down your computer to let the internal components cool down before continuing. 3 Make sure that the keyboard locking screw is not in the locked position. Your new PowerBook comes with the keyboard unlocked, so unless you or someone else locked the keyboard, you can skip this step...