What's the best way to unlock my iPhone 4s?

I have an iPhone 4s and I wanna unlock it so I can use it with T-Mobile.

You can unlock your iPhone 4S by Remote unlocking. The unlock is permanent and you can get this unlocking service from online sites.http://www.simpleunlocking.com/apple-iphone-4s/rs16wp9/ is where i unlocked my iPhone, Check it out!

The best way would be FREE try www.iphoneunlocksoftwarefree.com

Don't fall for scam sites.
only att can unlock the 4s.

Using are service this is what you would need to do.connect to itunes with a non accepted sim (for example a tmobile sim) and do a back up and restore. Your phone can now be used with any gsm network. Http://attiphoneunlocker.com/
Instructions to unlock iPhone Please Download latest version of Itunes from Apple Website. 1. Once you do this please Connect the Phone via the usb cable while Itunes is on. If your phone is not the current version (most updated), it will prompt you to update. Please update to current version (which is most likely 5.1.1) 2. Please insert foreign sim card (Please make sure the sim card is cut to fit in the slot) 3.It should automatically detect the new network. If it does not please go to Settings > General > Reset > Reset Network settings. It will take about 30 seconds. It will not show on Itunes that the phone is unlocked. You will see the phone Searching for signal. If it does not please do a Restore and restart the phone. 4.It should now be unlocked permanently!
http://attiphoneunlocker.com/

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