Lift the trackpad cable up off the battery to separate it from the adhesive securing it.

Be careful not to damage the cable. If it doesn't peel up easily, apply a little heat from an iOpener, heat gun, or hair dryer to soften the adhesive, and try again.

If you are installing a new trackpad cable, be sure to fold the new cable to match the shape of the old cable. The new cable will appear to be too long if it is not folded.