Datalogic Falcon X3 Quick Reference Manual page 10

1.5.1 Removing the SIM Card Delete this section
To remove the SIM card, follow the steps above to access the SIM area, and remove it from its slot.
All the basic functionalities normally associated
to the SIM card are managed by the terminal
(GPRS connectivity, phone calls, SMS
NOT
handling).
E
It is possible that not all the services connected
to the SIM card can be used or can be managed
by the terminal.