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Unlock your iPhone 3GS and iPhone 3G running iOS 4.2.1 with this video tutorial

By Daniel Petrov

Updated: Nov 29, 2010, 4:20 AM

Apple

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As promised two days ago, the Ultrasn0w unlocking tool for the iPhone 3GS and iPhone 3G, running iOS 4.2.1 and 4.1, has been released by the iPhone Dev-Team. The unlocker works on basebands higher than 05.13.04. The iPhone 4 has different basebands, thus its carrier unlock will take a little longer to prepare, but it's in the works.

As usual, if you are uncomfortable to tinker with your device, leave it at that, or, if you want to jailbreak and unlock, do it at your own risk. Your device has to be jailbroken first, so have a look at this video tutorial how to do the tethered jailbreak. Afterwards, watch the video below for unlocking guidance.

source: RedmondPie

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Daniel, a devoted tech writer at PhoneArena from 2010 to 2025, has been engrossed in mobile technology since the Windows Mobile era. His expertise spans mobile hardware, software, and carrier networks, and he's keenly interested in the future of digital health, car connectivity, and 5G. Beyond his professional pursuits, Daniel finds balance in travel, reading, and exploring new tech innovations, while contemplating the ethical and privacy implications of our digital future.