In such a situation, one should be wary of scams. If the seller asked for a photo of his ID card, then he might be cheating. Buying a phone in the Apple Store requires a valid ID to verify your identity and ensure that you are buying a legal and secure Apple device. Therefore, if the seller claims that the phone is on Apple's blacklist and requires a hand-held ID photo to unlock the phone, then he may be a fraudster. If you are worried about fraud, please contact the seller as soon as possible and ask him to provide more information such as the order number, purchase date, photo of the ID card, etc. in order to verify the origin of the phone and the purchase process. If the seller is unable to provide any relevant information or he begins to take any dishonest actions, you can contact the Apple Store for help and report the seller.