Users who have iPhone 4, iPhone 3GS or iPhone 3G over jailbroken iOS 5.0.1 and want to unlock through recently released Ultrasn0w 1.2.5, must follow guide below to know about unlock process.
Unlock tool Ultrasn0w by iPhone Dev Team is updated to Ultrasn0w 1.2.5 with support for latest iOS 5.0.1 over iPhone 4, iPhone 3GS and iPhone 3G.
Dev Team’s unlock tool Ultrasn0w v1.2.4 is out there which is now supportive for iOS 5. User can unlock iOS 5 on iPhone 4, and iPhone 3GS whereas iPhone 3G with old basebands is also compatible for the latest Ultrasn0w.
Ultrasn0w 1.2.3 is available for iOS 4.3.3 on iPhone 4 and 3GS, but it just works for old baseband and does not support to unlock newer iPhone basebands. The latest Ultrasn0w fixes the iOS 4.3.3 compatibility issues.
The iPhone Dev Team has released UltraSn0w 1.2.2 update to unlock iPhone 4, 3GS running over iOS 4.3.2 firmware.
After releasing Redsn0w and PwnageTool 4.3 for untethered iOS 4.3.1 jailbreak, now iPhone Dev Team pushed Ultrasn0w 1.2.1 unlock for iOS 4.3.1 that includes fix for signal bar issues.
Following guide can help you to activate iPhone 3GS, and iPhone 3G jailbroken with Redsn0w 0.9.6b5 or PwnageTool 4.1.3 and Ultrasn0w 1.2 unlocked, to fix battery drain with Redsn0w 0.9.6b6.
At the moment iPhone 3GS, 3G running over iOS 4.2.1 or 4.1 firmware on basebands 05.14.xx and 05.15.xx are unlockable with Ultrasn0w. Now, PwnageTool 4.1.3 gives option to update baseband of iPhone 3GS and 3G to 06.15.00, so that it would be possible to unlock those iPhones with Ultrasn0w 1.2.
In following guide you can learn that how to unlock iPhone 3GS, 3G running over iOS 4.2.1 or 4.1 with Ultrasn0w 1.2 unlock tool by iPhone Dev Team.
The iPhone Dev Team has released the updated UltraSn0w 1.2 unlock tool which could work for iPhone 3GS, and 3G running over iOS 4.2.1.