I bought an Iphone 4s from someone off Gumtree and they gave me it without a factory reset. I did not mind because I was easily going to reset it when I got home. Did some shopping (considering the seller wanted to meet in the town centre) and when I got home I realised the seller had used FindMyIphone to lock the phone saying it should be returned with a mobile number. I gave it a call and he told me that he would give half my money back for the phone which is when I realised I got scammed. I called the police a few days later but realised the seller was using a temporary number which he no longer had considering I declined his offer of getting half my money for the phone. At the moment the law seems to be doing nothing about it but is there any way I can actually restore the phone so it is of any use?