If you're talking about iCloud Activation Lock, there's no way to bypass it. The only way past the Activation Lock is to input the Apple ID and password of the original owner. If you're in contact with the original owner, he can disable Find My iPhone remotely which will remove the Activation Lock. If you don't know who the original owner is and can't contact him, you'll, unfortunately, be stuck with an expensive paperweight.
BTW, I've deleted the second thread on this same topic which you started in the Jailbreaking Forum as our rules only allow a member to post one thread per topic.