Finally wait is over Now you can unlock iphone 4 Baseband 4.11.08 and 4.12.01 on ios 5.0.1 and 5.1 Using Gevey Ultra 5.1, Gevey Ultra 5.1 Now available and you can Unlock your iphone 4.

After the long wait of More than 6 Month Applenberry has Released New version of Gevey Ultra 5.1, this New version of Gevey Ultra 5.1 Will unlock iphone 4 will work for iOS 4.1, 4.2, 4.2.1, 4.3, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 5.0, 5.0.1 and iOS 5.1 with modem firmware 1.59, 2.10, 3.10.1, 4.10.1, 4.11.08, 4.12.01.

According to Developers :

The new GEVEY™ Ultra unlocks your GSM iPhone 4 running iOS 5.1 and earlier and now supports modem firmware versions 1.59, 2.10, 3.10.1, 4.10.1, 4.11.08, and 4.12.01. Currently, a tethered Jailbreak is available for iOS 5.1 for iPhone 4, and you will also need to install the latest Furious Mod file for proper operation.

Additional software needed and tested to unlock your iPhone 4 with the new GEVEY™ Ultra are Redsn0w 0.910b1 and Absinthe v0.4. Note that we cannot offer phone support for installation, configuration, or troubleshooting of the iPhone Jailbreak process.

in order to Unlock iphone 4 Using Gevey Ultra 5.1 you need Jailbroken iphone 4 Witch is Posible on ios 5 using redsn0w.

You can Pre Order Gevey Ultra 5.1 From Here.

Please note if you are planing to Buy Gevey sim than there is one more option available that is you can Unlock your iphone 4 Using SAM Method, Witch is very Easy Way to Unlock your iphone.

Stay Tunes With us for More Details, We Will Update you With More information about Gevey Ultra 5.1.