How to unlock my at&t iphone 4s to allow it to work on verizon?

I recently bought an iPhone 4s off of Craigslist. The seller said that it was Verizon. Later I came to find out that the iPhone was actually for AT&T and not for Verizon. Is there any way that I can make this AT&T iPhone work for Verizon? Can I take it to the at&t store to have it unlocked so it would work for Verizon? Or would Verizon unlock it for me so that I'm able to use it with their network?

A AT&T Iphone will not work on the Verizon network. The AT&T network is GSM(uses sim cards), the Verizon network is CDMA(does not use sim cards).

AT&T is GSM network and Verizon is CDMA network. So even if you unlock it. It is of no use.

You need to contact the service provider which the i-phone 4s currently locked now… You need to contact the AT&T to Unlock it… Verizon will not unlock it.Every network will unlock their own network locked phones… They will not unlock other network locked phones… If AT&T will not unlock it. Or ask you to wait for some days or some months.Better visit the site http://www.mobileunlocksolutions.com/apple-iphone-4s/rs1wp9/ here you can get the Remote Unlock service for the I-phone 4S and unlock it easily from network lock… Then use with any GSM Network sim card. You can't use with CDMA Network sim card.Verizon is CDMA Network sim card. So you can't use I-phone 4S with Verizon after Unlock it.

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