Dell Inspiron 15 (5547, Early 2014) - Manual (Page 25)

Replacing the Wireless Card
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in
Before Working Inside Your Computer . After working inside your
computer, follow the instructions in After Working Inside Your
Computer . For more safety best practices, see the Regulatory
Compliance home page at dell.com/regulatory_compliance.
Procedure
CAUTION: To avoid damage to the wireless card, do not place any
cables under it.
1 Align the notch on the wireless card with the tab on the wireless-card
slot and slide the card into the slot.
2 Replace the screw that secures the wireless card to the system board.
3 Connect the antenna cables to the wireless card. The following table
provides the antenna-cable color scheme for the wireless card supported
by your computer:
Connectors on the wireless card Antenna-cable color
Main (white triangle) White
Auxiliary (black triangle) Black
Post-requisites
1 Replace the battery .
2 Replace the base cover .
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