Hi..i have recently been gifted a used iphone4s from a german friend of mine but it is currently locked in the German carrier and i can't use it in my country..(i live in Greece) ..How can i unlock it and be sure that will remain unlocked ?? I have searched and found some stores that can do this job for me but i dont realy trust to pay 50-70 euros for the unlock without having any gurantee of money refund if not working...any1 can help ???
Only the carrier the iPhone was sold as carrier locked with can officially unlock the iPhone or send the unlock request to Apple on the owner's behalf which is done with iTunes after receiving email notification the unlocking process is ready.
Your friend will probably need to help you with this.