The first component is the Doulci Activator Tool which can be used offline. The newer version consists of two components. What is the difference between Activator Tool and Activator Server? Doulci Activation server will act as a real Apple server and your device will unlock or bypass the iCloud Activation Lock. It essentially fool your iPhone that it is communicating with Apple server. You can activate locked iCloud device with the help of this software package by running it on your own computer.
3 How to Bypass iCloud Lock using Doulci Activator?.