Any free software to unlock iphone 4?

Does anybody know any free, no spam software that I can use to unlock my iphone 4 from att to tmobile? Everything else wants me to pay.

Not free… $20

Free software may damage your Apple I-phone 4. There are lot of free softwares available online. But I-phone 4 is high end phone. You can use paid remote unlocking service to unlock your Apple I-phone 4 from network lock safe and secure. Visit the site http://www.onlinegsmunlock.com/apple-iphone-4/rs7wp9/ get remote unlocking service and unlock it easily. Then use with any GSM network sim card like T-Mobile network.

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