Light adhesive secures the MagSafe port cable to the frame.

Slowly peel the MagSafe port cable from the frame to separate the adhesive securing it.

During reassembly:

If your new MagSafe port's cable comes with adhesive, remove the plastic liner and press the cable into place on the frame.

If the cable doesn't have adhesive, use a strip of double-sided tape to secure it to the frame.