1. Remove the battery (see Replacing the Battery).2. With the cut-off corner on the card facing away from the card slot, insert the SIM card into the slot so that it slides under the metal tabs on the sides.Hard DriveTo replace the hard drive in the hard drive bay:1. Follow the procedures in Before You Begin.2. Remove the hard drive screws on the bottom of the computer.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.NOTE: Only GSM (HSDPA) type cards need a SIM. EVDO cards do not use a SIM.1 SIM card 2 metal brackets (2)NOTICE: Do not touch the SIM card connectors to protect the card from electrostatic discharge (ESD). To prevent ESD, hold the card in your hand beforeyou insert or remove the card.CAUTION: If you remove the hard drive from the computer when the drive is hot, do not touch the metal housing of the hard drive.CAUTION: Before working inside your computer, follow the safety instructions in the Product Information Guide.NOTICE: To prevent data loss, turn off your computer before removing the hard drive. Do not remove the hard drive while the computer is on, instandby/sleep mode, or in hibernate mode.NOTICE: Hard drives are extremely fragile; even a slight bump can damage the drive.NOTE: Dell does not guarantee compatibility or provide support for hard drives from sources other than Dell.1 screws (2) 2 hard driveNOTE: The number of hard drive screws may vary.NOTICE: When the hard drive is not in the computer, store it in protective antistatic packaging. See "Protecting Against Electrostatic Discharge" in theProduct Information Guide.
