The device will now appear in your devices list. For development, you must to include the new device. If you use Xcode’s automatic signing, Xcode will do this for you when you attempt to run an app on the device. For manual profiles, go to the Profiles section, select your development or ad‑hoc profile, click Edit, check the newly added device, and regenerate the profile.
On the main tab, look at the detailed information panel. Locate the ECID field. Click the Copy button next to the string. Method 3: Using Recovery/DFU Mode (Advanced) register ecid iphone new
How to Find and Register Your New iPhone's ECID: A Complete Guide The device will now appear in your devices list
Click the Serial Number repeatedly until it cycles through other identifiers (UDID, Model Identifier) to reveal the . Right-click to copy the code. On macOS (using Finder) For manual profiles, go to the Profiles section,