Dell Chromebook 3100 Service Manual page 20

Steps
1. Remove the screw (M2x4) that secures the WWAN bracket to the WWAN card on the system board.
2. Remove the WWAN bracket from the WWAN card that secures the two antenna cables.
3. Disconnect the two antenna cables that are connected to the WWAN card.
4. Disconnect the WWAN card from its slot on the system board.
5. Lift and remove the WWAN card from the system board.
Installing the WWAN card
Prerequisites
NOTE: The following steps are applicable only for 4G LTE enabled systems.
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the WWAN card and provides a visual representation of the installation procedure.
20 Removing and installing components