Dell I15N-2727BK Owner's Manual page 28

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. The following table provides the antenna cable color scheme for
the Mini-Cards supported by your computer.
Connectors on the Mini-Card
WLAN (2 antenna cables)
Main WLAN (white triangle)
Auxiliary WLAN (black triangle)
6 Replace the keyboard. See "Replacing the Keyboard" on page 17.
7 Replace the battery. See "Replacing the Battery" on page 14.
CAUTION:
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 computer, as required.
NOTE:
If you are installing a Mini-Card from a source other than Dell, you must
install the appropriate drivers and utilities.
28
Wireless Mini-Card
Before turning on the computer, replace all screws and ensure that no
Antenna Cable Color Scheme
white
black