Unlock Iphone 4

Ultrasn0w 1.2.3 has been released to make the unlock compatible with iOS 4.3.3 on iPhone 4 and 3GS, running on the old baseband. This release of Ultrasn0w is not a new unlock for iPhones with newer basebands, instead, it only fixes the compatibility issues on the existing devices, which are jailbroken (with preserved basebands: 01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00) on iOS 4.3.3. Updating iPhone 3GS baseband to iPad’s 06.15.00 might result in loss of GPS functionality. Proceed to the step by step guide to unlock iOS 4.3.3 on iPhone 4, 3GS Using Ultrasn0w 1.2.3.

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ios4 iphone4 jailbreak unlock

Learn how to jailbreak iOS4 and unlock iPhone. The guide contains the following:

  • Jailbreak iOS 4 Firmware on iPhone 3GS with PwnageTool 4.0
  • Jailbreak iOS 4 Firmware on iPhone 3GS for Windows
  • Jailbreak iOS 4 Firmware on iPhone 3G with Redsn0w 0.9.5
  • Verified iOS 4 Firmware File Download Links for all Devices
  • Unlock iOS 4 Firmware on iPhone 3G, 3GS with Ultrasn0w 0.93

and some fixes.

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