Iphone Baseband

[haseebbutt10]

Ultrasn0w can unlock IPhone 4, IOS 4.2.1, Baseband 1.59.00 and I got that. If I unlock using that, will my baseband upgrade to 6.15? Is there any other way better than this to unlock Iphone 4, IOS 4.2.1?

 

[shreejan86]

You can use Gevey Turbo SIM to unlock your iPhone 4. OR you can try this method to unlock your iPhone and preserve your baseband.

http/www.redmondpie.com/how-to-preserve-baseband-jailbreak-and-unlock-iphone-4-3gs-3g-on-ios-4.2.1-using-pwnagetool-4.2-sn0wbreeze-2.2-video/