Can I unlock my iphone?

My iPhone 3G is unlocked and jailbroken because im on Vodafone and I orginally bought on o2. Its yet the software is running 3.1.2 but I like the update to the latest … I can unlock it if I update the 4.0 software thing?

Yes, you can upgrade to 4.0, but you lose your jailbroke. So you need to get the pirated version. Check the internet to see if it is yet released.

iPhone 3GS iOS 4 overview (Firmware 4.0 Jailbreak & Unlock)

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