Unlocking network query
Hi I wonder if anyone could please help me as I'm not exactly clued up on this.
I am purchasing an iPhone 4s off a friend whose contract has expired, he is on Vodafone and I will be starting a new contract with 3. Do I contact vodafone (although I am not on the network so have no information for them), do I contact my new provider 3 or alternatively will I have to get my friend to contact vodafone for me? Also would it be easy to take it to a back alley shop where they can unlock it for me?
Any help would be much appreciated.
Many thanks in advance.