There is a software floating in internet called as doulci activator that can help icloud activation bypass. The software can be downloaded from the bottom of post. To give a rough idea, Doulci activator is a software that bypass icloud activation using doulci server instead of icloud server. This method works for every ios devices and on any ios version.
The video below shows you how this software works:
The software can be downloaded directly from www.bypassicloudactivationslock.blogspot.com