If the phone has a sim card then the only other thing that you would need to do is get the phone unlocked. It will need to be unlocked to accept a J sim card, then all you need to do is get a sim card from the digicel store and top up some minutes.
If the phone has a sim card then the only other thing that you would need to do is get the phone unlocked. It will need to be unlocked to accept a J sim card, then all you need to do is get a sim card from the digicel store and top up some minutes.