How to make a new SIM in Japan work on my Iphone 4?
I just purchased a phone w/ sim in Japan (from AU). Now I'm trying to transfer the sim to my iphone, however my iphone won't recognize the sim (or it recognize the sim but it says "no service")
what do I do? Do I have to have it unlocked at the local AU store?
Your iPhone 4 will not with an AU SIM, even if it's a CDMA model. But most likely you have a GSM model iPhone, so it will not work on AU's network regardless of what you do.
But if you have a CDMA model iPhone 4, you have to take it to AU and transfer your line there. That's because CDMA phones don't use SIMs but electronic signature numbers, which aren't card based but hardwired in the phones.
If you have a CDMA model iPhone 5, you could do the SIM transfer, but be aware that there are two GSM models and one CMDA model for the iPhone 5, and they are not compatible between carriers.
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