Dell Alienware m17 R2 Service Manual page 69

Steps
1. Press down on the securing clip that secures the ethernet cable to the RJ-45 port on your computer.
2. With the securing clip held down, pull on the ethernet cable and lift the cable upwards at an angle to release the ethernet cable
from the RJ-45 port on your computer.
3. Disconnect the ethernet cable from the RJ-45 port on your computer.
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