im thinking of getting an unlocked iphone, i have an unactivated tracfone sim. if i go on the net and activate the sim on the tracfone website using the imei no. from the iphone. will it work? I would hit activate, then hit the phone that originally had the sim, then enter the iphones imei instead of the phone’s. ( the sim is for an at&t based tracfone, since there are 2 kinds of sims. t-mobile based and at&t based for tracfone. You can tell the difference by the serial no on the sim)