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Latitude 5540 Owner's Manual

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Removing the power button with optional fingerprint reader

CAUTION:The information in this section is intended for authorized service technicians only.

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the SIM card.
  3. Remove the base cover.
  4. Remove the battery.
  5. Remove the 4G WWAN card or 5G WWAN card, as applicable.
  6. Remove the WLAN card.
  7. Remove the memory modules.
  8. Remove the M.2 2230 or M.2 2280 solid-state drive from Slot 1, as applicable.
  9. Remove the M.2 2230 solid-state drive from Slot 2, if applicable.
  10. Remove the heat sink (discrete GPU) or heat sink (integrated GPU), as applicable.
  11. Remove the assembly-inner frame.
  12. Remove the system board.

About this task

The following images indicate the location of the power button and provide a visual representation of the removal procedure.
Image: Removing the power button

Steps

  1. Remove the two (M2x2.5) screws that secure the power button to the palm-rest assembly.
  2. Lift the power button off the palm-rest assembly.

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