I have purchased an IPad 2 from an individual and I did not do my due diligence and have him remove it from the iCloud before I purchased it. He will not respond nor remove it from the cloud. My question is; where is the "lock" stored, Logic board, etc. Can I combine another IPad that has no video with this one to get a working unit without being locked up. I am experienced in electronics repair, laptop and computer repair. I feel confident that I can do the work but I don't want to waste my time and effort to achieve nothing.