Dell Precision M4300 Service Manual page 32

1 WWAN card 2
c. Lift the card out of its connector.
NOTICE: The connectors are keyed to ensure correct insertion. If you feel resistance, check the connectors and realign the card.
6. Install the card:
NOTICE: To avoid damaging the Mobile Broadband card, never place cables on top of or under the card.
a. Align the card with the connector at a 45-degree angle, and press the card into the connector until it clicks.
NOTE: Most antenna connectors have color-coded markings that correspond to the color of the cable. For more specific information about which cable to
connect to which connector, see the documentation that came with your WWAN card.
b. Connect the antenna cables to the WWAN card, ensuring that you route the cables correctly.
Subscriber Identity Module (SIM) Card (optional)
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTE: The SIM card is optional depending on the type of WWAN (Mobile Broadband) card that is purchased.
NOTE: The SIM card is located inside the battery bay.
1. Follow the procedures in Before You
2. Slide the SIM card into the slot with the cut-off corner of the card facing away from the slot.
1 SIM card
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metal securing brackets (2)
Begin.