Use the native method. If SEID is hidden, temporarily enable Apple Pay.
To find or check the (Secure Element Identifier) on your iPhone, you can access it directly through the device settings or via official Apple account pages. The SEID is a unique identifier for the NFC chip , which is essential for security-related features like Apple Pay and contactless payments . 1. How to Find the SEID on Your iPhone seid iphone check link
Some phones are blacklisted because the previous owner stopped paying their monthly cellular bill. A "Clean" IMEI ensures the phone won't suddenly stop working on your network. Verify Hardware Authenticity Use the native method
(Secure Element Identifier) is a unique hardware ID linked to the NFC chip and security features like seid iphone check link