Recently, many iPhone unlock users have reported Ultrasn0w battery issues to the Dev team members. Ultrasn0w 1.0-1 was released to unlock the iPhone devices running on iOS 4 and iOS 4.0.1 firmwares.
Now, the iPhone Dev team has released Ultrasn0w 1.1-1, which helps improve the standby battery life of the devices. The new Ultrasn0w 1.1-1 supports all the latest basebands i.e. 04.26.08, 05.11.07, 05.12.01 and 05.13.04.

The upgraded Ultrasn0w is now available for end users and can be downloaded from the Cydia tool. You can also use the following repository to get the Ultrasn0w tool.
http://repo666.ultrasn0w.com
If you haven’t unlocked your iPhone yet, use this simple guide.
Also see -
- Guide to jailbreak iPad with JailbreakMe 2.0
- Guide to jailbreak iPhone iOS 4.0.1 with JailbreakMe 2.0
- Guide to jailbreak iPod Touch iOS 4.0.1 with JailbreakMe 2.0
