Lenovo ThinkPad X280 User Manual page 122

5. Remove the wireless-WAN card by doing the following:
a. Hold the cable connector with your fingers and gently disconnect each cable from the wireless-WAN
card 1 . Then remove the screw that secures the wireless-WAN card
secured position and pivots upward.
b. Carefully remove the wireless-WAN card out of the slot
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X280 User Guide
2 . The card is released from the
3 .