Under the Summary Tab click on the device ID till you find the UDID code. Step 1: Connect your device to your Mac and then launch iTunes. Once you are on the inside (so to speak) you will also need your device’s UDID. Proceed to accept the invitation and then log in at Apple’s Developer Website using your Apple ID.
After they have done that, you should get an invitation via email. If you don’t find a friend who has a developer account and ask then to add you to their account using your Apple ID. But first, you need a Developer’s account. To avoid this problem you should restore the update to your device via iTunes. A lot of users are facing the “Error 14” immediately after installing the iOS 10 directly on their device.
