Lenovo B475e User Manual page 60

5. If a tool for removing connectors is included in the package with the new card, use it to disconnect the
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cables from the card. If no such tool is included, disconnect the cables by picking up the connectors
with your fingers and gently unplugging them. Then remove the screw
6. Remove the card 5
7. Align the contact edge of the new PCI Express Mini Card with the corresponding socket.
8. Pivot the card until you can snap it into place. Then secure the card with the screw.
9. Connect the antenna cables to the new PCI Express Mini Card. Be sure to attach the gray cable to the
connector marked "MAIN" or "M" on the card, and the black cable to the connector marked "AUX" or "A".
10. Reinstall the computer cover, and then reinstall the screws to secure the cover.
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4 and the card pops up.