Dell Inspiron 5390 - Removing the Power Button with Fingerprint Reader; Installing the Power Button with Fingerprint Reader

Removing the power button with ngerprint reader
Prerequisites
NOTE: This procedure is only applicable for computers shipped with a ngerprint reader.
1 Follow the procedure in Before working inside your computer.
2 Remove the base cover.
3 Remove the battery.
4 Remove the WLAN card.
5 Remove the fan.
6 Remove the I/O board.
About this task
The following image indicates the location of power button with ngerprint reader and provides a visual representation of the removal
procedure.
Steps
1 Remove the screw (M1.6x2) that secures the power-button bracket to the palm-rest and keyboard assembly.
2 Remove the screw (M1.6x2) that secures the power button with ngerprint reader to the palm-rest and keyboard assembly.
3 Open the latch and disconnect the ngerprint-reader cable from the ngerprint-reader board.
4 Lift the power button with ngerprint-reader, along with the power-button cable, o the palm-rest and keyboard assembly.
Installing the power button with ngerprint reader
Prerequisite
NOTE
: This procedure is only applicable for computers shipped with a ngerprint reader.
If you are replacing a component, remove the existing component before performing the installation procedure.
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Removing and installing components