I wanted to buy a brand new iPhone 3gs for my brother's 21th birthday and I told Jim that he should help me find a tech store that could help me get one. Jim used to work in the local tech store and he said that one of his friends could help. I got the iPhone within a few days, but it was locked. I couldn't unlock it, so I told Jim about my problem. He sent me a YouTube video and he said that I should download a software application that would help me understand how to use the unlocking iphone 3gs software application.