Dell Latitude 5420 Owner's Manual page 118

12. Replace the wireless local area network
13. Replace the hard drive.
14. Replace the optical drive.
15. Replace the keyboard.
16. Replace the keyboard
17. Replace the memory.
18. Replace the back panel.
19. Replace the secure digital (SD)
20. Replace the subscriber identity module (SIM)
21. Replace the battery.
22. Follow the procedures in
Related Links
Removing the Power Connector
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(WLAN).
trim.
card.
card.
After Working Inside Your Computer.