Here is how to find the UDID of your iPhone.

  1. Connect your iPhone to iTunes
  2. Select your iPhone then click on “Summary”
  3. On the right, you’ll see “Serial number” on the third row below “Capacity” and “Phone Number”.
  4. Click on it once and it will change to “UDID”.
  5. Right-click then select “Copy”, as shown below:

Screenshot-2015-04-11-10.25.06