iOS 4.3.1 Unlock

MuscleNerd has tweeted that an updated version of Ultrasn0w would be released tonight. The unlock 4.3.1 will be compatible with iPhone 4 and iPhone 3GS. Using this update, users will be able to first upgrade to 06.15 Baseband and then would be able to downgrade to 05.13 Basebands. This surely is an important update as users on Basebands 05.14,…

The key member of iPhone Dev team, MuscleNerd has confirmed that they have fixed the Ultrasn0w issues with iOS 4.3.1 and an updated version of Ultrasn0w unlock will be released soon to fix signal bar issues on iOS 4.3.1 compatible iPhones running on the old baseband.