If your device is already jailbroken, finding your ECID is incredibly simple. Open your package manager (Cydia, Sileo, or Zebra). Download a system information tweak like .
a backup copy of these files to your local hard drive or personal cloud storage for safekeeping. Best Practices for New iPhones register ecid iphone new
Registering your ECID only allows platforms to save blobs for iOS versions that Apple is . It cannot retroactively fetch blobs for older iOS versions that Apple has already closed off, even if your new phone shipped with that older software version. Always register your ECID the moment you unbox a new device to ensure you do not miss out on current signing windows. If your device is already jailbroken, finding your