Dell Latitude 5420 Owner's Manual page 122

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