The permanent unlock is not available anymore. I went with my cousin to a cell phone store to do it, we even paid for it ($250), and we were told 1-2 days. But then 2 days later they told us that it cannot be done anymore right now as the IMEI unlocking was globally shut down or something like that. We tried with few other stores and they said the same thing. Another option is the Iphone 4 Gevey sims. they claim to work with all the new versions, haven't tried it, but it claims to work perfect without any reception problems or anything like the previous gevey sims. Will try it out and let you know.
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