Hi,
Either you have to flash the mobile or get a unlock code you have to
take it to the service center, because to flash and get unlock code (both) the
mobile has to be connected to the computer with a cable.
hope this
helps,thanks!
You can't operate CDMA phones on a GSM network (Sprint/Verizon are CDMA, T-Mobile and AT&T are GSM). The reason for this is that these networks authenticate in completely different ways. CDMA phones authenticate with the network with an ESN or MEID that is encoded into the phone itself (no SIM card), and GSM networks authenticate with a SIM card that the phone company provides. Because of this, you cannot get your CDMA EVO Shift onto T-Mobile, and because the authentication is done with the phone itself, it is extremely difficult to change a CDMA phone between carriers, even if you went to another CDMA carrier (Sprint).
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