Please install iTunes first.
Open iTunes and connect your iOS device to your computer with cable.
Wait for iTunes to successfully recognize to your iOS device. Then you will see a phone icon appears on the upper left.
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 entry will change to show the UDID.
Right click on UDID, and copy it to get the device UDID.
Recommended For You