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 [...]