Dell Latitude D430 Service Manual page 12

Mobile Broadband (WWAN) Cards
NOTE: Mobile Broadband cards may not be available in all regions.
If you ordered a Mobile Broadband card with your computer, the card is already installed.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
1. If a Mobile Broadband card is not already installed, go to step 5. If you are replacing a Mobile Broadband card, remove the existing card:
1 antenna wires (2) 2 Mobile Broadband card
a. Disconnect the Mobile Broadband card from any attached cables.
1 Mobile Broadband card 2 metal securing tabs (2)
NOTICE: To prevent damage to the connector, do not use tools to spread the securing clips.
b. Use your fingertips to carefully spread apart the metal securing tabs until the card pops up slightly.
c. Slide and lift the Mobile Broadband 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.
NOTE: Do not insert a WLAN card into the Mobile Broadband card slot.
NOTICE: The Mobile Broadband card may have one or two connectors, depending on the type of card you ordered.
2. To install a Mobile Broadband card:
a. Move any antenna cables out of the way to make space for the card.
NOTICE: To avoid damaging the Mobile Broadband card, never place cables on top of or under the card and ensure that you route the cables properly.