Dell Latitude E6530 (Mid 2012) - Manual (Page 28)

4. Lift the modem card to release the tab from the connector on the back of the card.
5. Disconnect the modem cable from the modem card.
6. Grasp the modem card and remove the it from the computer.
Installing the Modem Card
1. Insert the modem card in its slot
2. Seat the modem card, to ensure that the tab on the back of the card is engaged.
3. Connect the modem cable to the modem card.
4. Tighten the screw to secure the modem card.
5. Install:
a) base cover
b) battery
6. Follow the procedures in After Working Inside Your Computer .
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