About this task
The following images indicate the location of the smart card reader and provide a visual representation of the installation 
procedure.
Figure 97. Installing the smart-card reader
Steps
1. Align and place the smart-card reader on its slot on the palm-rest assembly.
2. Replace the two screws (M2x2) that adheres the smart-card reader to the palm-rest assembly.
3. Connect the smart-card cable to the connector on the USH board and close the latch.
Next steps
1. Install the assembly-inner frame.
2. Install the battery.
3. Install the base cover.
4. Install the SIM card.
5. Follow the procedure in After working inside your computer.
Dummy SIM-card slot filler
Removing the dummy SIM-card slot filler
CAUTION: The information in this removal 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 4G WWAN card or 5G WWAN card, as applicable.
5. Remove the wireless card.
6. Remove the memory modules.
132
Removing and installing Field Replaceable Units (FRUs)