How to Unlock iPhone 3GS 4.3.1 iOS with Ultrasn0w

How to Unlock iPhone 3GS 4.3.1 iOS with Ultrasn0w

Posted: 09 Apr 2011 10:16 PM PDT

After iPhone 4 4.3.1 unlock guide here is our how to unlock iPhone 3GS 4.3.1 with Ultrasn0w 1.2.1 guide. Please keep in mind that there is no new unlock it is just compatibility fix for iOS 4.3.1 and those who has following baseband can unlock iPhone 3GS on 4.3.1 iOS.

Supported iPhone 3GS Basebands – 04.26.08, 05.11.07, 05.12.01, 04.13.04, 06.15.00

Warning : At any cost don't update to iOS 4.3.1 without preserving baseband. You must use PwnageTool 4.3 or Sn0wbreeze 2.5 to jailbreak iOS 4.3.1 untethered with preserve baseband option.

How to Unlock iPhone 3GS 4.3.1 with Ultrasn0w 1.2.1

1. Untethered Jailbreak iOS 4.3.1 on iPhone 3GS with PwnageTool 4.3 orSn0wbreeze 2.5

2.  Launch Cydia from Springboard

3. You should see Two Options Packages and Source.

4. Go to Packages -> Edit -> Add & Enter repo666.ultrasn0w.com URL as a repository URL. (please note its Zero in ultras0nw word)

5. Now go back to Your Cydia Sources menu and you should see the Ultrasn0w package!

6. Click on Ultrasn0w package and select Ultrasn0w 1.2.1

7. Tap on Install button and let Ultrasn0w 1.2.1 complete the install process.

8. After you iPhone 3GS Reboots it will be unlocked on iOS 4.3.1. Enjoy!!!

Similar Posts:

• How to Unlock iPhone 4 4.3.1 iOS Baseband 01.59.00 with Ultrasn0w 1.2.1
• How to Unlock iPhone 3G/3GS 3.1.2 Firmware with Ultrasn0w
• Unlock iPhone 3G/3GS 3.1.3 with Ultrasn0w 0.92
• Ultrasn0w 1.2.1 to Unlock 4.3.1 iOS on iPhone 4 & 3GS Released Fixes No Signal Bar Issue
• How to Unlock iOS 4.2.1 & 4.1 on iPhone 3G / 3GS with Ultrasn0w 1.2

Sent from my iPad