16.Replace the hinge covers (see Replacing the Hinge Covers).
17.Replace the card from the WLAN/WiMax card slot, if applicable (see Replacing the WLAN/WiMax Card).
18.Replace the card from the WWAN/FCM card slot, if applicable (see Replacing a WWAN Card or Replacing an FCM).
19.Replace the bottom of the base assembly (see Replacing the Bottom of the Base Assembly).
20.Follow the procedures in After Working on Your Computer.
NOTE: If you use a BIOS update program disc to flash the BIOS, press <F12> before inserting the disc in order to set the computer to boot from the disc for one time only. Otherwise, you must enter the system setup program to change the default boot order.
21.Flash update the BIOS (see Flashing the BIOS for more information).
22.Enter the system setup program to update the BIOS on the new system board with the computer Service Tag. For information on the system setup program, see the Dell™ Technology Guide on your computer or at support.dell.com.
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