The latest iOS firmware from Apple brings some minor changes to your gadget and you can download it if your want. It has a couple of improvements and bug fixes. But how about jailbreak and unlock? I think this question is wondering all iUsers who have accidentally updated their old firmware versions to iOS 5.1.1 . This question is now considered to be the most asked. Because many people have updated their iPhones to iOS 5.1.1 and now is thinking about this question. You can also try to downgrade iOS 5.1.1 to the lower iOS firmware (for more info go here). But after releasing of new RedSn0w which you can apply for the tether iOS 5.1.1 jailbreak, you can also to unlock it with new UltraSn0w fixer that uses deb files. ultrasn0w fixer for iOS 5.1.1 unlock A day before we wrote you how to unlock iPhone 4S on iOS 5.1.1 using Gevey Ultra S (use this link if you are interested) but UltraSn0w fixer patch was made only for iPhone 4 and iPhone 3GS with preserved baseband. Here is the list where you can find your appropriate baseband.

Supported basebands

iPhone 4:
  • 01.59.00
iPhone 3GS:
  • 04.26.08
  • 05.11.07
  • 05.13.01
  • 05.12.01
  • 06.15.00
Ultrasn0w fixer 1.1.5 was developed by unknown hackers who made it for iPhone 4 and iPhone 3GS unlock. It uses deb files to unlock your phone. However you must remember that this unlock is possible only on jailbroken iOS 5.1.1. If you haven't done this then use this tutorial guide to perform it using RedSn0w 0.9.10b8b. iOS 5.1.1 unlock with UltraSn0w fixer is easy to perform. Just find it in Cydia and add this repo: 
http://repo.iparelhos.com
The detailed how-to guide will come soon where you will find all information you need to perform iOS 5.1.1 unlock. Update: Use this detailed guide to unlock iOS 5.1.1 using UltraSn0w fixer patch. You may notice that how hard Apple is trying to protect unlockable status different dev teams and just enthusiasts find the way out. This cat and mouse game has been lasting from the beginning. We can only rely on hacker's answer or try to develop something by itself. But there is need knowledge.