the code on my iphone x was 4016
on my grandsons iphone x what does the code 4016 mean
Although this error code is not listed in the Apple Support document that you arrived here from, you should try the steps provided in that article to see if they can help. If they don't then you will need to contact Apple Support directly for further assistance with this matter. To do so, simply select the "Get Support" link in the upper right-hand side of this forum's web page.