How to add a device for a registered IOS developer

To develop IOS applications, you must first become an apple developer. After purchasing the apple developer authorization ($99 personal authorization, if we need to run our own IOS applications on real iOS devices such as iPhone and iPad, we need

Complete the corresponding steps on the IOS provisioning portal. Log on to the developer center with an apple account (Click here to get the logon link), go to the IOS provisioning portal, click devices on the left, and follow the procedure
Connect the device to your computer. After clicking "add devices", you will be prompted to enter the device serial number. We can get the device serial number through iTunes.
Click provisioning to apply for an authorization certificate for the new device. In about a few minutes, Apple will generate a certificate and download it to the local machine. After you click the certificate, the device is automatically imported. After the certificate is successfully imported, you can see it in the organizer in xcode. The dot in the left-side toolbar is green, indicating that the device is authorized and can be used. This completes the entire process of adding a new device to the Apple id.