https://community.o2.co.uk/t5/Apple/iphone4-unlocking/m-p/1381417#M165680 You would need to get Vodafone to unlock it <a href="https://community.o2.co.uk/t5/user/viewprofilepage/user-id/4105060">@Andy14</a>.<BR />I've just tried to find their guide but keep being told "they will be back soon" when getting to the page.<BR />Try contacting Voda customer services<BR />Using any other UK mobile or landline? Call 0333 304 0191 (standard charges apply) Fri, 14 Aug 2020 12:12:24 GMT gmarkj 2020-08-14T12:12:24Z https://community.o2.co.uk/t5/Apple/iphone4-unlocking/m-p/1381413#M165679 <P>Have been given an old iphone4 which is on vodafone network which I would like to use with my O2 pay as you go sim card. How can I unlock the phone?</P><P>Andy</P> Fri, 14 Aug 2020 12:06:03 GMT https://community.o2.co.uk/t5/Apple/iphone4-unlocking/m-p/1381413#M165679 Andy14 2020-08-14T12:06:03Z https://community.o2.co.uk/t5/Apple/iphone4-unlocking/m-p/1381417#M165680 You would need to get Vodafone to unlock it <a href="https://community.o2.co.uk/t5/user/viewprofilepage/user-id/4105060">@Andy14</a>.<BR />I've just tried to find their guide but keep being told "they will be back soon" when getting to the page.<BR />Try contacting Voda customer services<BR />Using any other UK mobile or landline? Call 0333 304 0191 (standard charges apply) Fri, 14 Aug 2020 12:12:24 GMT https://community.o2.co.uk/t5/Apple/iphone4-unlocking/m-p/1381417#M165680 gmarkj 2020-08-14T12:12:24Z