Incorrect purchase date for iPhone 15 Pro Max
I checked my serial number in apple.com and there is written iphone 15 pro max but purchase date is 1978
[Re-Titled by Moderator]
iPhone 15 Pro Max, iOS 18
Question marked as
The most common cause of that issue is an iPhone that's been serviced by an unauthorized repair shop. If you purchased your iPhone new from an authorized Apple reseller and it has not been serviced by some unauthorized shop, then contact Apple Support:
Update your proof of purchase - Apple Support
You'll need to be able to provide the receipt from that authorized reseller.
Regards.