Dell Vostro 3350 (Early 2011) - Manual (Page 28)

6. Remove the WLAN card from the computer.
Installing The Wireless Local Area Network
(WLAN) Card
1. Slide the WLAN card into its slot.
2. Connect the antenna cables according to the color code on the WLAN
card.
3. Install the access panel .
4. Install the battery .
5. Follow the procedures in After Working Inside Your Computer .
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