Chosen Solution

Hi all In need of some help, replacing the back housing on a iphone XR, but have no idea what this part is I have circled in black pen in the picture which is attached to the side, as it needs replacing. Colin.

hello Colin, its a bluetooth antenna cable. You need it for many activities like ApplePay service. It’s better to have the original one, but you can install a Chinese equivalent . The cost should not exceed $1 + shipping.