Im looking at getting a iPhone 3GS in the coming weeks, but will be planning on using it on Vodafone - im buying a PAYG version (obviously locked to o2).
Do i need to activate the iPhone using the o2 PAYG SIM before i can unlock it to use on Vodafone, or can i simply put my Vodafone SIM in straight away and unlock it from there? Can i activate the iPhone with my Voda SIM?
I would really appreciate a link to a guide to help people like me planning on buying an iPhone to use on other networks
Thanks for any help