How to Downgrade iOS 6.0.1 to 5.1.1

It’s great to keep your mobile tech devices up to date and running on the latest operating system. Sometimes though, the newest systems have glitches and bugs that need ironing out, or your favorite apps may not run properly using it. If this has happened with iOS 6, it may be possible to roll back to iOS 5.1.1. It does need to be said that this method will NOT work with any of the following devices : iPhone 4s, iPhone 5, iPad Mini, iPad 4, 3 or 2 or the iPod Touch 5.  If you have the iPhone 3GS, iPhone 4 or iPod Touch 4G then it will work. Here’s how to downgrade your iOS using RedSn0w :

IPSW-downgrade baseband iphone

  1. Very Important – you must save your SHSH blobs before you start this process. Use TinyUmbrella to do this or, if your device was already jailbroken at iOS 5.x.x and Cydia launched then they will already have been saved.
  2. Make sure you back up your device fully as, once the rollback has been done you will need to restore all your personal settings. You will not see any backups for iOS 6 after the downgrade, only those for 5.x.x.
  3. Download RedSn0w 0.9.15b3
  4. Download the relevant iOS firmware for your device
  5. Open the RedSn0w zip file and extract to RedSn0w folder
  6. Open RedSn0w folder and launch the application: Windows 7 users, right-click on application, select Properties, Compatibility Mode and select Windows XP. 7 and XP users, right-click on icon and select Run as Administrator.
  7. When RedSn0w launches select Extras
  8. Select Even More
  9. Select Restore
  10. Select IPSW and locate the firmware you downloaded, select Open
  11. At this point, iPhone users will be asked if they want to stop baseband from updating, select Yes
  12. Now, your device must be put into Pwned mode. Select OK
  13. Switch off device and connect it to your computer, select Next
  14. Follow the instructions to place device into Pwned mode:  Hold power button down for 3 seconds. Now hold Home button down at the same time and hold both for 10 seconds. Let go of power button and wait until your screen goes black.
  15. RedSn0w will find the blobs saved on Cydia. If it can’t, either press Remote to try again or Local and find the files yourself

RedSn0w will now go through the restore process and will tell you when it has been successful, or not as the case may be.  If it is successful you will now be able to jailbreak your device again using an untethered jailbreak method. Good luck.