How to Unlock iPhone 4 (Use with Other Carriers)

Unlocking an iPhone allows it to be used with unsupported carriers (ex. T-Mobile instead of AT&T in the U.S.) and the iPhone 4 unlock was released on Tuesday, August 3, 2010 at around 11:30 PM PST by the iPhone Dev-Team. This is incredibly simple to unlock your iPhone 4. Here's the steps:

1. Jailbreak your iPhone 4
2. Open Cydia,Manage,Sources,Edit,Add
3. Add the source: http://repo666.ultrasn0w.com
4. Remove SIM card if haven't already
5. Search for and install ultrasn0w
6. Reboot iPhone

If no signal is found, go to Settings and turn on Airplane Mode, then turn it off. If you still have no signal, reboot the iPhone.
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How to Jailbreak iPhone 4: http://www.youtube.com/watch?v=Cqy0sPoN8Z8
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iPhone Dev-Team: http://blog.iphone-dev.org
F0recast: http://ih8sn0w.com/index.php/products/view/f0recast.snow
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My Website: http://techgeec.com
Follow Me: http://twitter.com/techgeec

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[rashidjalilli]

i tried to reboot iPhone but it doesn't turning on. there is just apple icon and that is it. is it normal. i am waiting for 20 minutes but nothing changes

[iPT2gGeec]

@rashidjalilli Something went wrong. Put your iPhone in DFU mode and restore it in iTunes.

[iPT2gGeec]

@Sabbyy99 Unlocks don't work for Sprint US. You should have just boughten a Sprint iPhone 4S.

[iPT2gGeec]

@YkniteTv Jailbreak your device. I have a current video in my channel.

[lobopochaco]

I tried twice but nothing happened what doni do

[criscs5]

@rashidjalilli do a thetherd boot

[TheCrash156]

dose this work to use on tmobile

[sanica9334]

@wogboy54 well if they do not unlock you can always ask for refund and if they do not give you refund you can open paypal res. center and get your money back so... its not a scam and it have work for me

[wogboy54]

@sanica9334 lmao are u a scam. lol

[TheBabiicakesray]

i've tried this and it still say no service

[MRIANGUS]

does this work or 5.0.1?

[sanica9334]

Forget all spamers bellow, and go to unlocker-iphone. com they will give you support and everything, you can ask them question's like I did before buying unlocking software, to see that they are real not scam, if you are interested in real software and not wasting your money like I did. I have wasted over 40$ on these false advertising before finding right one. Just check it out. It will cost you nothing to check it out. Sorry for low english :)