Dell Latitude 5424 Rugged Owner's Manual page 160

3 Connect the express card FPC cable to the system board [1] and secure it using a piece of tape [2].
4 Install the:
a WWAN card
b WLAN card
c PCIe heatsink assembly
d Batteries
e Bottom chassis cover
5 Follow the procedure in
160 Removing and installing components
After working inside your computer.