The much anticipated iPhone 4 ultrasn0w carrier unlock has just been released by the iPhone Dev-Team. The version of this ultrasnow is 1.0-1. You can find it in Cydia by simply searching for it on jailbroken devices. If you cant find it on search, then just add repo666.ultrasn0w.com (it’s utlrasn0w with a zero not O) repository in Cydia. It works with baseband 01.59 and 3G/3GS basebands 04.26.08, 05.11.07, 05.12.01 and 05.13.04.
If you don’t know why we there’s an unlock for iPhone here’s the reason: it is for enabling your iPhone to work on any other network other then AT&T. After unlocking your iPhone, you can use it with other carrier networks. Talking about other networks, T-Mobile still does not support 3G for iPhone users in USA, so make sure you disable 3G in the network settings of your iPhone before unlocking.
Hi I'm using iPhone 3gs new bootrom version 3.1.3 and nw I want to upgrade to ios 4 so plz guide me on it
I dnt have the official sim card