Users who unlocked their iPhone 4 with Ultrasn0w 1.1-0 were wrestling with a sudden decrease in iPhone 4 battery life problem. Now, iPhone dev team has tweaked the carrier unlock ultrasn0w and has upgraded to Ultrasn0w 1.1-1 to help the users facing standby battery life problems, without even making a call or using it.
ultrasn0w upgraded to version 1.1-1 we’ve tweaked a few things that may help with standby battery life, you can upgrade via Cydia.
Follow guide posted here to unlock iPhone 4 using ultrasn0w.
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