Lenovo X121E Laptop User Manual


 
8. Connect the cables to the new PCI Express Mini Card.
Note: Be sure to attach the red cable to the connector marked “MAIN” or “M” on the card, and the
blue cable to the connector marked “AUX” or “A.”
9. Put the cover back in place 1 , close the cover 2 , and then tighten the screws 3 .
10. Reinstall the battery. For information about how to reinstall the battery, refer to “Replacing the battery”
on page 75.
11. Turn the computer over again. Connect the ac power adapter and cables to the computer; then turn it on.
Replacing the SIM card
Before you start, print these instructions.
Your computer might require a SIM (Subscriber Identication Module) card to establish a wireless WAN (Wide
Area Network) connections. Depending on the country of delivery, the SIM card may be already installed in
your computer or will be part of the shipping contents that came with your computer.
If you nd the SIM card in the shipping contents, a dummy card is installed in the SIM card slot. Then
proceed to the following instructions.
94 User Guide