Ultrasn0w 1.2.4 released to unlock iPhone 4, iPhone 3GS on iOS 5 but this
Ultrasn0w 1.2.4 doesn’t support any new baseband, in this post we will show how to unlock iPhone 4, iPhone 3GS on iOS 5 using Ultrasnow 1.2.4 ?
This is the Supported basebands:
01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00
Notes: you must preserve your iPhone 4 baseband 01.59.00 to prevent upgrading to higher baseband in order to unlock on iOS 5 click here
How to Unlock iPhone 4, iPhone 3GS on iOS 5 using Ultrasnow 1.2.4 ?
STEP 1: first jailbreak your iPhone 4 or iPhone 3GS using Redns0w with the guide posted here.
STEP 2: Once jailbroken, head to
Cydia ->
Manage ->
Sources.
STEP 3: Now tap on
Edit -> Add then write down the followingrepo:
ultrasn0w.com

STEP 4: After adding the repo, search in Cydia for Ultrans0w and you’ll tap on it then hit install.

After a respiring and a tethered boot, you’ll get your iPhone 4 and iPhone 3GS unlocked.
GUIDE HOW TO INSTALL UltraSn0w
- Run Cydia or Icy
- Please add the repo repo666.ultrasn0w.com to Cydia or Icy. That last “o” is actually the number zero “0”! If you use the letter “o” you’ll get an error.
- Search for ‘ultrasn0w’ in cydia or icy and install ultrasn0w
- Reboot your iDevice
- T-Mobile USA users should disable 3G before using ultrasn0w
- Enjoy