Dell Latitude E6420 (Early 2011) - Manual (Page 61)

Modem Card
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Removing the Modem Card
1. Follow the procedures in Before Working On Your Computer .
2. Remove the Battery .
3. Remove the Keyboard Trim .
4. Remove the Keyboard .
5. Remove the screw securing the modem card to the computer.
6. Pull out the tab from underneath the palmrest.
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