Continue derouting the cellular antenna cable from the second and third logic board clips.

Use the pointed tip of a spudger to gently pry the cellular antenna cable from the middle logic board clip.

Don't try to remove it by pulling on the cable, as it will tear easily.

In order for the cable to reach its socket on the logic board, you must route it above the logic board and underneath the audio control flex cable, as shown in the first photo.