4. Turn the knob counterclockwise until it locks.
5. Replace the safety screw (#6-32) that secures the knob to the chassis.
Next steps
1. Follow the procedure in After working inside your computer.
External antenna
Removing the external antenna
Prerequisites
1. Follow the procedure in Before working inside your computer.
About this task
NOTE: This computer is shipped with an external puck antenna. Connect the external antenna during setup, to connect to WiFi
and Bluetooth. The external antenna improves the wireless communication strength and stability, while setting up your operating
system.
The following images indicate the location of the external-antenna connectors and provide a visual representation of the removal
procedure.
Figure 27. Removing the external antenna
Steps
1. To remove the external antenna, loosen the bolts that connect the external antenna cables to the SMA connectors on the chassis.
2. Disconnect the external antenna cables from the SMA connectors and remove the external antenna from the chassis.
Removing and installing Customer Replaceable Units (CRUs) 47
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