Just wanted to give some personal feedback on my experience with the product. I picked up two iPhone 4's for cheap (Craigslist/ some guy got them to unlock & couldn't do it). I'm not a hacker or anything like that, just a regular guy. Took them home popped open a youtube video and Jailbroke both. Discovered I couldn't unlock= Ordered Gevey Supreme
Doesn't work as advertised. After several attempts and about 40 minutes my phones are finally unlocked. Had to call 112 + turn on & off airplane mode etc (There are steps, not plug and play) several times. Phones are working, then install a program through Cydia to get Facetime to work. Once my phone rebooted all of a suden my carrier (T-Mobile) is gone. I go through the same process again. Finally get it working. Works for a day, then all of a sudden its not working again.... I constantly have to unlock phones & never know when there going to loose there service. Not sure if its a user erer or defective product I got but thats my experience so far