Lenovo ThinkCentre M82 Hardware Maintenance Manual page 146

1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See "Removing the computer cover" on page 94.
3. If your computer comes with a WiFi card module that supports the Bluetooth function, disconnect
the Bluetooth cable from the WiFi adapter card.
Figure 74. Disconnecting the Bluetooth cable
Note: The Bluetooth cable connects the Bluetooth connector on the WiFi adapter card to the front USB
connector on the system board to support the Bluetooth function.
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ThinkCentre Hardware Maintenance Manual