Lenovo ThinkPad X1 User Manual page 24

The Wi-Fi feature provides network access at distances of up to 100 meters (328 feet) depending on the
Wi-Fi router and your surroundings. Your computer is installed with a wireless-LAN card to support the
Wi-Fi connection. The quality of the Wi-Fi signal is affected by the number of connected devices, the
infrastructure, and the objects through which the signal is transmitted.
• Mobile broadband network (supported by some models)
The mobile broadband feature enables you to connect to the Internet from any location where cellular
service is available. Mobile broadband connections use 3G, 4G, or LTE cellular and mobile networks, just
as phones do. Mobile broadband connection is supported only on computer models with a wireless-WAN
card installed.
A nano-SIM card or an external mobile broadband device is required to connect to a mobile broadband
network.
Your computer also supports Bluetooth and NFC wireless communications. For more information, see
"Using NFC devices" on page 14 and "Using Bluetooth devices" on page 14.
To join a wireless network:
1. Tap the wireless-network icon in the Windows notification area. A list of available wireless networks is
displayed.
Note: If the Airplane mode control is on, or the Wi-Fi control or Mobile broadband control is off, the
list might not be displayed. Tap the corresponding control to display the list.
2. Tap a network to join it. For secured networks, enter the valid password when prompted.
To replace or install a nano-SIM card:
The nano-SIM-card and microSD card slot is on the left side of the computer. Before you start, turn off the
computer.
1. Insert a straightened paper clip into the hole in the tray
computer. If a nano-SIM card is installed, gently take the nano-SIM card out of the tray
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User Guide
1 . The tray ejects. Then, slide the tray out of the
2
.