4. Install the dust shield.
5. Reconnect the external cables to the corresponding connectors on the computer, and then reconnect
the power cord to the electrical outlet.
Rear Wi-Fi antenna
Prerequisite
Before you start, read Chapter 1 "Important safety information" on page 1 and print the following
instructions.
Replacement procedure
1. Turn off the computer and remove all connected devices.
2. Disconnect the computer from ac power and all connected cables.
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M90q Hardware Maintenance Manual