- Notes, cautions, and warnings
- Views of Latitude 5540
- Set up your Latitude 5540
- Specifications of Latitude 5540
- Dimensions and weight
- Processor
- Chipset
- Operating system
- Memory
- External ports
- Internal slots
- Ethernet
- Wireless module
- WWAN module
- Audio
- Storage
- Media-card reader
- Keyboard
- Keyboard function keys
- Camera
- Touchpad
- Power adapter
- Battery
- Display
- Fingerprint reader (optional)
- Sensor
- GPU—Integrated
- GPU—Discrete
- External display support
- Hardware security
- Smart-card reader
- Operating and storage environment
- Dell Support policy
- ComfortView Plus
- Using the privacy shutter
- Dell Optimizer
- Working inside your computer
- Removing and installing Customer Replaceable Units (CRUs)
- SIM card tray (Optional)
- Base cover
- Wireless card
- WWAN card (Optional)
- Memory modules
- Solid-state drive
- Removing the M.2 2230 solid-state drive from Slot 1
- Installing the M.2 2230 solid-state drive in Slot 1
- Removing the M.2 2280 solid-state drive from Slot 1
- Installing the M.2 2280 solid-state drive in Slot 1
- Removing the M.2 2230 solid-state drive from Slot 2
- Installing the M.2 2230 solid-state drive in Slot 2
- Fan
- Removing and installing Field Replaceable Units (FRUs)
- Battery
- Assembly inner frame
- Speakers
- Coin-cell battery
- Heat sink
- System board
- Power button
- Power button with optional fingerprint reader
- Keyboard
- Display assembly
- Display bezel
- Display panel
- Camera module
- Display hinges
- Display back cover
- Display cable
- Sensor board
- Fingerprint reader (Optional)
- Smart-card reader
- Dummy SIM-card slot filler
- Palm-rest assembly
- Software
- BIOS Setup
- Troubleshooting
- Handling swollen rechargeable Li-ion batteries
- Locate the Service Tag or Express Service Code of your Dell computer
- 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 and contacting Dell
Latitude 5540 Owner's Manual
Removing the dummy SIM-card slot filler
Prerequisites
- Follow the procedure in Before working inside your computer.
- Remove the SIM card.
- Remove the base cover.
- Remove the 4G WWAN card or 5G WWAN card, as applicable.
- Remove the WLAN card.
- Remove the memory modules.
- Remove the M.2 2230 or M.2 2280 solid-state drive from Slot 1, as applicable.
- Remove the M.2 2230 solid-state drive from Slot 2, if applicable.
- Remove the battery.
- Remove the assembly-inner frame.
- Remove the
system board.
NOTE:The system board can be removed with the heat sink attached in order to simplify the procedure and preserve the thermal bond between the system board and heat sink.
- Remove the display assembly.
- Remove the smart-card reader.
- Remove the fingerprint reader, if applicable.
About this task
NOTE:For models shipped with WLAN card 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.
The following image indicates the dummy SIM-card slot filler and provides a visual representation of the dummy SIM-card slot filler removal procedure.
Steps
- Using a scribe, push the dummy SIM-card slot filler from the top side of the palm-rest assembly.
- Gently lift the dummy SIM-card slot filler out of the palm-rest assembly.
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