Panasonic SF Series Supplementary Instructions Manual page 8

Installing/Removing a SIM Card
CF-M34 Series
SIM Card Slot
8
Removing a SIM card
Press the button.
Remove the socket.
Remove the SIM card from the socket.
CAUTION
To remove the cover, contact Panasonic Technical
Support.
Once the cover is removed, the computer's waterproof
performance is not covered under the warranty.
1
Power off your computer and GSM/
GPRS modem
2
Remove the computer's cover, then re-
move the battery pack