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.
About this task
The following image indicates the location of the WWAN I/O board and provides a visual representation of the removal
procedure.
NOTE: The following steps are applicable only for 4G LTE enabled systems.
Steps
1. Remove the two (M2x3) screws that secure the WWAN I/O board to the palmrest assembly.
2. Gently flip the WWAN I/O board toward right.
3. Open the latch and disconnect the WWAN cable from the connector on the WWAN I/O board.
4. Lift and remove the WWAN I/O board from the palmrest assembly.
Installing the WWAN I/O board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
Removing and installing components
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