HP EliteBook 840 G3 - Manual (Page 29)

To insert a SIM card, follow these steps:
1. Turn off the computer by using the Shut down command.
2. Close the display.
3. Disconnect all external devices connected to the computer.
4. Unplug the power cord from the AC outlet.
5. Insert the SIM card into the SIM card slot, and then press in on the SIM card until it is firmly seated.
NOTE: The SIM card in your computer may look slightly different from the illustration in this section.
To remove a SIM card, press in on the SIM card, and then remove it from the slot.
Inserting a SIM card (select products only) 19