Chosen Solution
I replaced my backhousing of my iphone 7 as it had a huge scratch on the back. Now everything works perfectly but the apple pay.. can someone point me where exactly the antenna is for the nfc? The gps, celluer, bluetooth all work perfectly and i thought they all share the same antenna band at the top, but i think nfc needs something else connected as well.. The housing is probably not oem so the material could be causing this but does anybody have any suggestion on this?
Around the main camera, look for a flex cable that connects a screw post on the board to a screw post to the top bezel, usually stuck to the camera bracket as well.