Dell NOT21684 Owner's Manual page 123

About this task
The following images indicate the location of the fingerprint reader and provide a visual representation of the installation
procedure.
Steps
1. Align and place the fingerprint reader on its slot on the palm-rest assembly.
2. Slide the fingerprint-reader bracket on its slot on the palm-rest assembly.
3. Replace the screw (M2x3) that secures the fingerprint reader to the palm-rest assembly.
4. Connect the fingerprint-reader cable to the connector on the USH board and close the latch.
Next steps
1. Install the assembly-inner
2. Install the battery.
3. Install the base cover.
4. Install the SIM card.
5. Follow the procedure in
122 Removing and installing Field Replaceable Units (FRUs)
frame.
After working inside your computer.