Ultrasn0w 1.2.5 unlock has been released to unlock iPhone 4 and 3GS on iOS 5.0.1 with compatible baseband.
If you are not on iOS 5.0.1 you will need to preserve baseband first either with Sn0wbreeze (for windows) or Redsn0w (for Mac) and then update to iOS 5.0.1. Check the basebands below if your device is compatible to unlock with ultrasn0w 1.2.5 on iOS 5.0.1.
This version supports the following devices and basebands on iOS 5.0.1 –
- iPhone 3GS – 04.26.08 – 05.11.07 – 05.12.01 – 05.13.04 – 06.15.00
- iPhone 4 – 01.59.00
How To: Unlock iPhone 4 / 3GS With Ultrasn0w 1.2.5 on iOS 5.0.1:
Step 2: Once Jailbroken, Go to Cydia on your homescreen, now tap “manage” tab then “sources”, “edit” and atlast tap “add”, add the following repo in the address bar
Step 3: Now go to Cydia search tab and Search for Ultrasn0w 1.2.5. and install that package.
That’s it, please reboot your iPhone using the normal “slide to power off” swipe. T-Mobile users in the USA must disable 3G mode in Settings->General->Network. your iPhone is now unlocked on latest iOS 5.0.1.