Dell Latitude D820 User Manual download pdf (Page 61)

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1. Follow the procedures in Before You Begin.

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2. Remove the battery (see Replacing the Battery).

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3. Slide the SIM card into the compartment with the cut-off corner of the card facing away from the compartment.

Wireless Cards

If you ordered a wireless LAN or WAN card with your computer, the card is already installed.

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Wireless Local Area Network (WLAN) Cards

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1. Follow the procedures in Before You Begin.

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2. Remove the hinge cover (see Hinge Cover).

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3. Remove the keyboard (see Keyboard).

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4. Ground yourself by touching one of the metal connectors on the back of the computer.

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5. If a card is not already installed, go to step 6. If you are replacing a card, remove the existing card:

a. Disconnect the antenna cable from the card.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

SIM card

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

NOTICE: To avoid damaging the system board, you must remove the main battery before you begin working inside the computer.

NOTE: If you leave the area, ground yourself again when you return to the computer.

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Dell Latitude D820 User Manual Page 61