Lenovo ThinkPad X1 Carbon Gen 10 Hardware Maintenance Manual page 74

Removal procedure of the WWAN card
Type 1
When installing: ensure that you connect the blue cable to
connector, the white cable to
Type 2
When installing: ensure that you connect the blue cable to
connector, the white cable to
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c connector and the orange cable to
c
connector and the orange cable to
a connector, the black with grey cable to
d connector.
a connector, the black with grey cable to
d
connector.
b
b