Dell Latitude E5420 (Early 2011) - Manual (Page 87)

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Modem Card
Removing the Modem Card
1. Follow the procedures in Before Working On Your Computer .
2. Remove the battery .
3. Remove the back panel .
4. Remove the keyboard trim .
5. Remove the keyboard .
6. Remove the optical drive .
7. Remove the hard drive
8. Remove the CPU door .
9. Remove the palm rest .
10. Remove the display assembly .
11. Remove the support brackets .
12. Remove the screw that secures the modem card.
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