[How to]How to Unlock iOS 4.0 in iPhone 4, 3G, 3GS Using UltraSn0w
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iPhone Discussion How to Unlock iOS 4.0 in iPhone 4, 3G, 3GS Using UltraSn0w
Steps to unlock IOS 4.0
1. Jailbreak IOS 4.0 Pwnage Tool.
2. After Jailbreaking, you can use blacksnOw RC2 to unlock IOS 4.0
3. Start Cydia App.
4. Add Source.
http://cydia.pushfix.info.
5. Wait for Cydia to update packages.
6. Search for Blacksn0w and from the list click on “Blacksn0w RC2 Final” and click on
Install.
7. Restart your iPhone.
For more on Unlocking iPhone 3G, you can visit link given below.