1. Align the notch on the WWAN card with the tab on the WWAN-card slot and insert the WWAN card at an angle into the WWAN-card
slot.
2. Connect the antenna cables to the WWAN card and align the WWAN-card bracket on the WWAN card.
3. Replace the screw (M2x2.5) that secures the WWAN bracket to the WWAN card.
1. Install the battery.
2. Install the base cover.
3. Follow the procedure in After working inside your computer.
Touchpad
Removing the touchpad
1. Follow the procedure in Before working inside your computer.
2. Remove the base cover.
3. Remove the battery.
The following image indicates the location of touchpad and provides a visual representation of the removal procedure.
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Removing and installing components