The is a unique 64-bit identifier hard-coded into your iPhone’s processor. Unlike a serial number, it cannot be changed without replacing the hardware. Registering this ID is a critical step for customizing your device's firmware or developing iOS applications. 1. How to Find Your ECID
Before you can register it, you need to extract the ID from your device. Register a single device - Account - Help - Apple Developer register ecid iphone new
How to Register Your iPhone ECID: A Complete Guide for New Devices The is a unique 64-bit identifier hard-coded into