Dell XPS 15Z (L511Z, Mid 2011) - Manual (Page 26)

26 Wireless Mini-Card
3 Insert the Mini-Card connector at a 45-degree angle into the system-board
connector.
4 Press the other end of the Mini-Card down into the slot on the system
board and replace the screw that secures the Mini-Card to the system
board.
5 Connect the appropriate antenna cables to the Mini-Card you are
installing.
6 Replace the battery (see "Replacing the Battery" on page 18).
7 Replace the base cover (see "Replacing the Base Cover" on page 15).
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.
8 Install the drivers and utilities for your Mini-Card, as required.
NOTE: If you are installing a Mini-Card from a source other than Dell, you must
install the appropriate drivers and utilities.
Connectors on the Mini-Card Antenna Cable Color Scheme
WLAN + Bluetooth (2 antenna cables)
Main WLAN + Bluetooth (white triangle)
Auxiliary WLAN + Bluetooth (black triangle)
white
black
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