Dell Vostro 470 (Mid 2012) - Manual (Page 39)

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Removing The WLAN Card
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the cover.
3. Remove the front bezel.
4. Disconnect the antenna cables from the WLAN card.
5. Remove the screw that secures the WLAN card and remove it from the card slot.
Figure 38.
6. Release the WLAN card cable from the routing clips and lift them in an upward direction.
Figure 39.
7. Remove the WLAN card cable from the computer by sliding it around from the front of the computer.
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