- Notes, cautions, and warnings
- Working on your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of your system
- SIM card tray
- Micro Secure Digital (SD) Card
- Base cover
- Wireless card
- Wireless Wide Area Network (WWAN) Card
- Solid-state drives
- Memory
- Battery
- Battery cable
- Assembly inner frame
- LED board
- Heat sink and fan assembly
- Speakers
- USB type-C bracket
- System board
- Power-button board
- Smart card reader
- Coin-cell battery
- Keyboard assembly
- Keyboard bracket
- Display assembly
- Display bezel
- Display panel
- Camera/microphone module
- eDP/display cable
- Sensor board
- Display hinges
- Display back cover
- Dummy SIM-card slot filler
- Palm-rest assembly
- Drivers and downloads
- System setup
- Troubleshooting
- Handling swollen rechargeable Li-ion batteries
- Dell SupportAssist Pre-boot System Performance Check diagnostics
- Built-in self-test (BIST)
- System diagnostic lights
- Recovering the operating system
- Real-Time Clock (RTC Reset)
- Backup media and recovery options
- Wi-Fi power cycle
- Drain residual flea power (perform hard reset)
- Getting help
Latitude 5421 Service Manual
Installing the dummy SIM-card slot filler
Prerequisites
If you are replacing a component, remove the necessary component before the installation procedure.
About this task
The following image indicates the location of the dummy SIM-card slot filler and provides a visual representation of the dummy SIM-card slot filler installation procedure.
Steps
- Place the dummy SIM-card slot filler into its compartment on the palm rest.
NOTE: Ensure that the dummy SIM-card slot filler is aligned with the ribs on the palm-rest assembly.
- Press the dummy SIM-card slot filler until it clicks into place and ensure it fits securely into the SIM card slot.
Next steps
- Install the
palm-rest assembly.
NOTE: For models shipped with WLAN antennas only, the dummy SIM-card slot filler is a separate service part and is not included with replacement palm rest. As a result, the dummy SIM-card slot filler must be removed and then reinstalled when replacing the palm-rest assembly.
- Install the system board.
- Install the assembly inner frame.
- Install the speakers.
- Install the heat sink - UMA or discrete based on the system configuration.
- Install the battery.
- Install the WWAN card.
- Install the WLAN card.
- Install the 2280 solid-state drive or 2230 solid-state drive.
- Install the memory module.
- Install the base cover.
- Install the microSD card.
- Install the SIM card.
- Exit Service Mode.
- Follow the procedure in After working inside your computer.
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