- Notes, cautions, and warnings
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of Inspiron 14 5402
- Base cover
- Battery
- Memory module
- Solid-state drive—M.2 slot one
- Solid-state drive—M.2 slot two
- Removing the M.2 2230 solid-state drive from M.2 slot two
- Installing the M.2 2230 solid-state drive in M.2 slot two
- Removing the M.2 2280 solid-state drive/Intel Optane storage from M.2 slot two
- Installing the M.2 2280 solid-state drive/Intel Optane storage in M.2 slot two
- Installing the solid-state drive bracket
- WLAN card
- Fan
- Coin-cell battery
- Power-adapter port
- Display assembly
- I/O board
- Touchpad
- Speakers
- Heat sink
- Power button with optional fingerprint reader
- System board
- Palm-rest and keyboard assembly
- Drivers and downloads
- System setup
- Troubleshooting
- Handling swollen Lithium-ion batteries
- Locate the Service Tag or Express Service Code of your Dell computer
- SupportAssist diagnostics
- Built-in self-test (BIST)
- Recovering the operating system
- System diagnostic lights
- Enabling Intel Optane memory
- Disabling Intel Optane memory
- WiFi power cycle
- Drain residual flea power (perform hard reset)
- Getting help and contacting Dell
Inspiron 14 5402 Service Manual
Installing the power button with optional fingerprint reader
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the power button with optional fingerprint reader and provides a visual representation of the installation procedure.
NOTE The following image may differ slightly, depending if your computer is shipped with a fingerprint reader on the power button.
Steps
- Align and place the power button on the palm-rest and keyboard assembly.
- Place the fingerprint-reader board (if applicable) on the palm-rest and keyboard assembly.
- Replace the two screws (M2x2.5) that secure the power button with fingerprint reader to the palm-rest and keyboard assembly.
- Adhere the power-button cable to the palm-rest and keyboard assembly with the tape.
- Align and place the power-button bracket on the power button.
- Replace the screw (M2x2) that secures the power-button bracket to the palm-rest and keyboard assembly.
Next steps
- Install the I/O board.
- Install the battery (3-cell or 4-cell).
- Install the fan.
- Install the base cover.
- Follow the procedure in After working inside your computer.
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