Unlocking an iphone 3g 4.2.1 && firmware 05.15.04?

I have an iphone 3g 4.2.1 and firmware 05.15.04 and i need it unlocked so i can use it for straight talk- Please someone help me out- i have searched, searched, searched… Please please please its very important!

To unlock I-phone 3G use Remote Unlock service, Visit the sitehttp://www.mobile-unlocker.com/apple-iphone-3g/rs2wp9/ get remote unlock service and unlock it. Then use Straight Talk network in the phone. Straight talk offers gsm and CDMA Sim. You can use only gsm sim card in an unlocked phone.

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