Lenovo ThinkPad T430s User Manual page 109

Your computer might require a SIM card to establish wireless WAN connections. Depending on the country
of delivery, the SIM card might already be installed in your computer or will be part of the shipping contents
that came with your computer.
If you find the SIM cards included in the shipping contents, a dummy card is installed in the SIM card
slot. Then proceed with the following instructions.
Note: The SIM card is identified by the IC chip mounted on one side of the card.
To replace the SIM card, do the following:
1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer.
2. Close the computer display, and turn it over.
3. Remove the battery. See "Replacing the battery" on page 67.
4. Locate the SIM card slot inside the open battery compartment. Gently pull the card partway out of
the slot; then remove it completely.
5. Insert the SIM card firmly into the slot.
6. Reinstall the battery. See "Replacing the battery" on page 67.
7. Turn the computer over again. Connect the ac power adapter and all cables.
.
Chapter 6 Replacing devices
93