Ultrasn0w 1.1.1 unlock was released by the iPhone Dev Team and has updated the ultrasn0w unlocking tool for iPhone 4, 3GS and 3G. For better performance and stability improvement this new version has added lots of new tweaks. It will also help with standby battery life in-case, if the phone starts draining the battery too fast. Initially, it was assumed that the issue is because of the jailbreak applications installed after jailbreaking the device. But it was observed that if Ultrasn0w unlock was removed from the jailbroken iPhone then the battery life issue gets disappeared. So, the problem was with Ultrasn0w 1.0.1. Read More →