Unlock Your iPhone 3GS for free - Use on any network Vodafone, Orange, O2 and 3 Three UK

As you may have seen from blog posts my iPhone 3GS is with Vodafone UK but doesn't always get the signal I need so I wanted to be able to use alternative SIMs in the iPhone if no signal exists at the location I am at.

There are various websites that offer iPhone 3GS unlocking for around the £20 - £25 mark but I spotted this video on YouTube that allows you to unlock your iPhone 3GS for free.

http://www.youtube.com/watch?v=XwZbg9koZaE

Once you have jailbroken your iPhone 3GS then you can load the ultrasn0w package which then unlocks the iPhone. Using Cydia add the URL

http://repo666.ultrasn0w.com

Once rebooted your iphone will be unlocked for free!

I've just tried it with my iPhone 3GS locked to Vodafone UK and it now works with SIMs from 3 and Orange so I can now use my iPhone 3GS on any network.