5.Connect the display cable, camera cable, processor fan cable, AC adapter connector cable, I/O board cable, and the LED board cable to the system board connectors.
6.Replace the WLAN card, if applicable (see Replacing the WLAN Card).
7.Replace the WWAN card, if applicable (see Replacing the WWAN Card).
8.Replace the memory and processor board (see Replacing the Memory and Processor Board).
9.Replace the processor heat sink (see Replacing the Processor Heat Sink).
10.Replace the
11.Replace the Bluetooth card (see Replacing the Bluetooth Card).
12.Replace the palm rest bracket (see Replacing the Palm Rest Bracket).
13.Replace the memory module (see Replacing the Memory Module).
14.Replace the hard drive (see Replacing the Hard Drive).
15.Connect the speaker cable to the speaker cable connector on the I/O board (see Replacing the Speakers).
16.Replace the palm rest (see Replacing the Palm Rest).
17.Replace the keyboard (see Replacing the Keyboard).
18.Replace the battery (see Replacing the Battery).
CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer.
19. Turn on the computer.
NOTE: After you have replaced the system board, enter the computer's Service Tag into the BIOS of the replacement system board.
20.Enter the Service Tag. If you need help to enter the service tag, contact Dell, see "Contacting Dell" in the Setup Guide.
21.The keyboard matrix may change after you replace the system board. To set the keyboard matrix according to your country, see Setting the Keyboard Matrix.
Setting the Keyboard Matrix
1.Turn off your computer (see Turning Off Your Computer).
2.If your computer is connected to the AC adapter, disconnect the AC adapter from the computer.
3.Press and hold the following key combination for the desired keyboard matrix:
¡All countries except Brazil: <Fn><S>
¡Brazil only: <Fn><E>
4.Connect the AC adapter to the computer and then plug it into a wall outlet or surge protector.
5.Release the key combination.