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Dell Latitude 3520 - WWAN I;O Board; Removing the WWAN I;O Board

Dell Latitude 3520
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Steps
1. Align and place the touchpad module into the slot on the palmrest assembly.
2. Install the four (M2x2) screws to secure the touchpad module to the palmrest assembly.
3. Align and place the touchpad bracket on the touchpad module.
4. Install the three (M2x2.5) screws to secure the touchpad bracket to the touchpad module.
5. Affix the adhesive tapes to secure the touchpad module in place.
6. Connect the touchpad cable to the connector on the system board and close the latch.
Next steps
1. Install the speakers.
2. Install the battery.
3. Install the base cover.
4. Install the SIM card tray for 4G LTE enabled systems.
5. Install the microSD-card.
6. Follow the procedure in after working inside your computer.
WWAN I/O board
Removing the WWAN I/O board
Prerequisites
1. Follow the procedure in before working inside your computer.
2. Remove the microSD card.
3. Remove the SIM card tray for 4G LTE enabled systems.
4. Remove the base cover.
5. Remove the battery cable.
Removing and installing components
83

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