Identify each part as shown in the attached image, remove the cutouts, and apply gel before applying.

Side / 1: Apply from the charging port around the frame up to the lock button on the left.

Side / 2: Apply from the mute switch to the lock button.

Side / 3: Apply from the charging port around the perimeter of the phone up to the volume button on the right.

Side / 4: Apply in the space between the sim-card tray and the low volume button.

Camera / 5: Apply gel and align the camera skin with the cutouts.