Dell Latitude 12 7212, Owner'S Manual, Page: 21 / 79

Installing WWAN card
1 Insert the WWAN card in the slot on the system board.
NOTE: Ensure that the metal pin is downwards towards the slot on the system board.
2 Connect the WWAN cables to the connectors on the WWAN card.
NOTE: The IMEI number is visible on the WWAN card.
3 To secure the WWAN card, place the metal bracket and tighten the M2.0 x 3.0 screw.
4 Install the:
a Display assembly
b Battery
5 Follow the procedure in After working inside your computer .
CMOS battery
Removing CMOS battery
1 Follow the procedure in Before working inside your computer .
2 Remove the:
a Battery
b Display assembly
3 To remove the CMOS battery:
a Place the back side of system on a flat surface.
Removing and installing components 21