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My Iphone 4 has been given to me and It was on O2. I have had it unlocked and I can use it normally but the Sim won't work, it still says no service, so I can't make calls or texts. Can anyone help?
When you say normally what does that mean? Does your Vodafone sim work in any other phone? Was it unlocked officially or jailbroken?
I can download apps and play them, I can do everything except phone calls. The phone was unlocked officially. I used to use the sim on a samsung and I had it cut down at a vodaphone store. so the phone is just not recognising the sim card
The sim was physically cut down? The first thing I would try is gettin a new sim card from a Vodafone store - they can do a sim swap in minutes.