Install Ultrasn0w 1.1-1 To Improve Battery Life. This Ultrasn0w 1.1-1 is an updated release which is designed to unclock iPhone 4, 3G and 3GS and Dev Team has included the cure to betters or improve standby battery life. To install this unlocking tool, you need to go to Cydia using iPhone 3GS, 3G and iPhone 4 in order to unlock iOS 4.0.1 and iOS 4 or earlier.
The steps to Install UltraSn0w 1.1-1:
- Head to Cydia
- Drop this repo666.ultrasn0w.com to Cydia. Remember to use 0 (Zero) for ultrasn0w don’t use O for letter
- Now it’s time to search ultrasn0w in Cydia then install it. The result your iPhone will be unlocked
- Note: if you are using T-MObile USA it’s recommended to disabling your 3G first before start using Ultrasn0w.
The above are the steps if you have not installed Ultrasn0w, so if you have then what you need just updated the version.
Frankly this unclocking tool can be used if your iOS is 4.0.2, because there is no a baseband update within. But it’s pointless since no workaround yet to jailbreak both iPhone 4 or iPhone 3GS.
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