Just bought a 2nd hand 2G iphone off ebay, it was on o2. I've got an o2 contract sim which I want to use it in the iphone. I wanted to know if it was a case of just putting in my sim and it will work straight away or if I have to run a program to allow me to use it ?
I dont really want to pay extra on my phone bill or anything like that.
If anyone has any info on this it would be much appreciated.