Each iOS device has a unique UDID; how to check the iOS Device UDID of your device? Here is the detailed tutorial.
1. Please install iTunes first.
2. Open iTunes and connect your iOS device to your computer with the cable.
3. Wait for iTunes to successfully recognize your iOS device. Then you will see a phone icon appears on the upper left.
4. Clicking on the icon will jump to the device summary page. Find the entry for the serial number and click directly on the serial number. The access will change to show the UDID.
5. Right-click on UDID, and copy it to get the device UDID.
