i'm new to this kind of thing but i'm a quick learner. What link would give me accurate instructions and tools to do so?
it is a 32gb at&t iphone 3gs. I would like to use it on t-mobile. and it is already updated to 5.0.1 ios. it is unactivated and i can't activate because i don't have an at&t sim card, but i do have a tmobile sim card.
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