Lenovo ThinkPad L420 (English) User Guide - Page 30
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If no integrated wireless PCI Express Mini Card has been preinstalled in your computer, you can install one. To do this, follow the procedure in "Replacing the PCI Express Mini Card for wireless LAN/WiMAX connection" on page 110 or "Installing and replacing the PCI Express Mini Card for wireless WAN connection" on page 111. 12 User Guide
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If no integrated wireless PCI Express Mini Card has been preinstalled in your computer, you can install
one. To do this, follow the procedure in “Replacing the PCI Express Mini Card for wireless LAN/WiMAX
connection” on page 110 or “Installing and replacing the PCI Express Mini Card for wireless WAN
connection” on page 111.
12
User Guide