Dell Latitude 5421 Service Manual page 64

4. Remove the microSD
5. Remove the base cover.
6. Remove the memory module.
7. Remove the 2280 solid-state drive
8. Remove the WLAN card.
9. Remove the WWAN card.
10. Remove the battery.
11. Remove the heat sink -
12. Remove the assembly inner
13. Remove the system board.
NOTE: The system board can be removed with the heat sink attached in order to simplify the procedure and preserve
the thermal bond between the system board and heat sink.
About this task
The following images indicate the location of the keyboard assembly and provide a visual representation of the removal
procedure.
Steps
1.
NOTE: For models shipped with a USH module, disconnect the USH cable from the keyboard bracket.
64 Removing and installing components
card.
or 2230 solid-state
UMA or discrete based on the system configuration.
frame.
drive.