Dell Inspiron 15 (3542, Early 2014) - Manual (Page 38)

Procedure
1 Remove the screws that secure the palm rest to the computer base.
2 Lift the connector latches and using the pull tabs, disconnect the
touchpad cable and power-button board cable from the system board.
1 power-button board cable 2 connector latch
3 touchpad cable 4 screws (3)
3 Close the display and turn the computer over.
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