iphone 16 giving an error about enclosure

I replaced the enclosure and screen on an iphone 16 after a drop, i used a pulled enclosure as the enclosures who come from apple include batteries and are like near 400€, whereas the pull was in the 80's .. I think it's complaining of the enclosure as an unknown part due to me not swapping the camerabutton over from the old enclosure.. But i dind't think 'd have to, sine it's an non-identifying component best I know?
Either way, yes, obviously I did a calibration, and it still says unknown enclosure even thought in the diagnostics it says it's a genuine part intially then seems to change it's mind .. The camera button works and all, so it's as non-issue, just a bit of an annoyance..