How to unlock Iphone 4 Verizon?

Verizon will generally only unlock the GSM portion of their phone for INTERNATIONAL use, not for use in the US. You will not be able to use that phone. You will need to purchase a different one.

The verizon iphone 4 was a CDMA model, not GSM. You must be mistaken, see Identifying iPhone models and post what model you actually have. But generally speaking the only way to unlock a phone is to contact the carrier directly and ask them to.

My friend just bought a GSM Iphone4 Verizon from someone but isn't with Verizon.

Not sure what you mean, but Verzon is a CDMA only carreir, NOT GSM, and the only place you can buy a Verizon phone is from Verizon.

If this is a Stainght Talk phone, it's not Verizon.

For all GSM iPhones, only the carrier it's locked to can provide unlocking.

sandrafrominman wrote:

My friend just bought a GSM Iphone4 Verizon

uselessSABATOGE is correct. The Verizon iPhone 4 is CDMA only. If it happens that it's a 4S, it will be both CDMA and GSM. However, Verizon will only unlock a phone for a current subscriber in good standing.

sandrafrominman wrote:

Hi,

My friend just bought a GSM Iphone4 Verizon

There is no such thing. Verizon is a CDMA carrier. The Verizon iPhone 4 does not contain a GSM radio at all. You can not use it with any carrier other than Verizon or an MVNO that they own with their approval.

technically, verizon is not a cdma only carrier NOW, with the introduction of LTE. (a gsm technology)

No, but when it comes to the iPhone, it doesn't matter. Voice calls and SMS messaging go over the Verizon CDMA network. The iPhone 5 does not do voice over LTE on Verizon. You can not put a Verizon SIM card into a CDMA iPhone and have it work, even if that phone supports the same LTE frequencies in use by Verizon.

Incorrect. LTE is not necessarily GSM, and currently doesn't carry voice. For example, no SIM card is needed to use Verizon LTE data and

voice/SMS is still carried by the CDMA channel.

"GSM" is a set of operating operating specifications, independent of the particular digital technology being utilized.

Well Actually you do need a sim card for LTE. Anf they are working to get Voice over LTE

What "they" are working on is not relevant.

The OP has a CDMA iPhone 4. Your comments are irrelevant and off topic.

modular747 wrote:

Incorrect. LTE is not necessarily GSM, and currently doesn't carry voice. For example, no SIM card is needed to use Verizon LTE data and

voice/SMS is still carried by the CDMA channesl

You're almost correct. 😉 An LTE SIM is necessary for using LTE data (note the 4G iPads) but yes, voice/SMS is stil carried over CDMA. Verizon 4G devices will not activate without a 4G LTE SIM.

But spot on about the reference post being incorrect.

serenitynow1 wrote:

technically, verizon is not a cdma only carrier NOW, with the introduction of LTE. (a gsm technology)

And technically, everyone who uses Verizon 4G LTE devices to talk on would disagree.

not really. I am not saying talk is currently on gsm if you're on verizon's network.

voice/sms with verizon = cdma right now

3g data with verizon = cdma only

LTE data = GSM, with fallback to 3g cdma

whats difficult about this? But it does make the statement "verizon is cdma only carrier" incorrect.

The iPhone 4 has NO LTE capability. The fact that LTE is GSM technology is irrelevant to the OPs question regarding an iPhone 4.

agreed, and nowhere am I saying otherwise. I was only correcting the statement made earlier by someone else saying "verizon is a cdma only carrier, not gsm"