iPhone Dev Team has just released an update version to Ultrasn0w unlock tool. This new Ultrasn0w 1.2 can unlock iOS 4.2.1 iPhone devices with following basebands.
iPhone 4
- 01.59.00
iPhone 3G / 3GS
- 04.26.08
- 05.11.07
- 05.12.01
- 05.13.04
- 06.15.04
If your iPhone is on any of the above baseband, you can simply go to Cydia, download Ultrasn0w 1.2 and unlock the device. Follow these guides, to unlock your iPhone with Ultrasn0w 1.2.
But if you are on a different baseband, than you will first have to update your iPhone 3GS / 3G baseband to 06.15.00, which is the same baseband used by iPad iOS 3.2.2 and it is unlockable.
iPhone Dev Team has developed an unusual method to unlock iPhone 3GS, 3G on baseband 05.14.02 or higher on iOS 4.2.1 and iOS 4.1 using the Redsn0w 0.9.6 Beta 5.
Redsn0w 0.9.6 Beta 5 has been released with an update to jailbreak iPhone 3GS and iPhone 3G while updating to baseband 06.15.00 that is required for Ultrsn0w 1.2 to unlock. The Redsn0w 0.9.6beta5 is available for both Windows and Mac users.
iPhone Dev Team has provided the following information on their blog:
The new redsn0w 0.9.6beta5 is out. It gives both Windows and OSX users the ability to flash the iPad 06.15 baseband on iPhone3G or iPhone3GS. It fetches the baseband files directly from Apple for now (the only IPSW you ever point it at is the stock IPSW for the FW on your iPhone right now). There may be a long delay while it’s doing this (their servers are currently getting pounded).
When you run Redsn0w 0.9.6 Beta 5, select corresponding IPSW (iOS 4.2.1 or iOS 4.1) for your iPhone 3GS or 3G and proceed. You will be given an option to ‘Install iPad baseband’. Selecting this will update your iPhone’s baseband to 06.15.00 which is currently the only way to unlock 05.14.02 on iPhone 3GS and 3G.
After that, to get your device unlocked on iOS 4.2.1 / 4.1 with the newly release ultrasn0w 1.2, follow our full step by step guide Posted Here.
You can download Redsn0w 0.9.6B5 from the link provided by the iPhone Dev team at the bottom of Ultra Recycle post.
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- Update your iPhone 4 to 4.2.1 while preserving its 1.59.00 baseband using TinyUmbrella
- Update your iPhone 3GS / 3G Baseband to 06.15.00 with Redsn0w 0.9.6B5 and unlock it
{ 1 comment… read it below or add one }
I already Jillbreak my Iphone 4.1 but theproblem i couldn’t unlock cause my baseband is 02.10.04 if u have the right one please send it to my email