Genuine DJI ribbon cable for troubleshooting ribbon cable issues. Only try it if you have the skills because it's harder in Phantom 4 than in Phantom 3.
As here with the camera cable tie for the 12MG P4 Basic camera, it's pretty much the #1 damaged camera product to offer you $349+ is billed by DJI to replace the entire camera.
After a small accident, my strap snapped in half. I spent a fraction of the cost to replace the tape myself. $600 was quoted excluding shipping for repairs. I used the step by step video to install it myself and it took about an hour.