Can I factory unlock my iPhone 4 for free without using a computer?

It's locked to AT&T and its running with iOS 6

As far as i know you can't without a computer, because you have to have it in sli mode to edit that stuff.

Unfortunately i don't think anyone found a stable hack yet for ios 6 and if the device is not jailbroken u r gona have to jailbreak with a computer and again with jailbreak i don't think anyone has developed a jailbreak hack for ios 6 either

Only the service provider can facoty unlock it.

Free Unlock may damage the I-Phone 4.It's risk process. So i would suggest the paid Remote Unlock service to Unlock it.Visit the site http://www.wickedunlock.com/apple-iphone-4/rs11wp9/ get the Remote Unlock service and Unlock it from network lock easily. It's safe method to Unlocking. To Purchase Unlocking service you need Computer, For updating i think you need computer…

I have done this for myself here
http://www.vunlock.com/

they unlock almost all models of att
and i found them good

Hi

you can factory unlock your iPhone & use it with GSM SIM card around the World
just submit your IMEI number provider will send you the confirmation mail at your email then Connect your iPhone with I tune and you will receive message from I tune that your iPhone is unlocked
Thanks
Note: you must need connect iPhone to i tune to unlock & with PC you don't do it

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