UPDATE : Download ZiPhone Latest Release for Windows. A Mac version of the same can be had here.
ZiPhone GUI is built by i.unlock.no which is based on GeoHot’s unlock script which was generalized by Zibri 🙂 ZiPhoneGUI is for Windows users while Mac users have a better application in the form of iJailbreak. Talk about hackers/developers but yeah – they are the best! iPhone Devs have been keeping mum so far but hey, this method works the best!
Unlock option works with only 1.1.2 and 1.1.3 OTB iPhones and that makes …

Unlocking an out of the box 1.1.2
This method is originally developed by George Hotz, as you can see in his blog. Big thanks to him, and the rest of the guys who helped him making this possible.
Step 1: Prepair your phone and install software
First of all, downgrade the firmware to 1.1.1 (only main firmware) and then jailbreak and activate it (don’t unlock sim-lock).
Now, launch Installer and let it refresh it’s sources. Then tap on Sources, Edit, Add: http://i.unlock.no/. Now tap on Done, then Install the following packages in …

Well, now that 1.1.2 is released for quite some time now – why is the world not abuzz about upgrading to it? Mostly because – there is no reason to! Some say 1.1.2 sports better battery life while others say the iPhone performs faster (did it ever under perform?)!! For whatever reason, if you want to upgrade to the latest and still enjoy all the features (including unlock!!).Activating an iPhone 1.1.2 without iTunes is really a big deal because INdependence doesn’t support 1.1.2 yet and iDemocracy wasted some valuable …