Lenovo ThinkPad X1 Nano Gen 2 Linux User Manual page 35

Installation procedure (for WWAN card with four antennas)
Note: During installation, ensure that you connect the cables with different colors to the corresponding
connectors on the card according to the illustrations above: the orange cable to the connector labeled
ORANGE, the blue cable to the connector labeled BLUE, the white and grey cable to the connector labeled
WHITE GREY, and the black and grey cable to the connector labeled BLACK GREY.
Removal procedure (for WWAN card with two antennas)
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X1 Nano Gen 2 User Guide