If the adhesive on your USB-C port cable isn't sticky or intact, follow the next two steps to install new adhesive. Otherwise, skip those steps.

Use tweezers, or your fingers, to remove the old adhesive under the USB-C port cable.

Peel the new USB-C port cable adhesive strip from its clear liner.

Align the adhesive strip over its spot in the frame and lay it down with the colored pull tab facing the right edge of the phone.