How to Restore or Update to iOS 5.1.1 After iOS 6 Release
0
neonlightbutterfly • October 10, 2012 at 10:48am
I am currently on iOS 4.3.5 with a jailbreak and want to update to iOS 5.1.1. However, iTunes returns an error stating 'This device isn't eligible for the requested build' even though I have the 9B206 IPSW file. How can I complete this update now that iOS 6 has been released?
Answers
0
iClarified • January 12, 2026 at 3:01am
Apple stops signing older firmware versions shortly after a new iOS release, which is why you see the eligibility error in iTunes. To install iOS 5.1.1 when it is no longer being signed, you must have saved SHSH blobs for that specific version while it was still available. If you have those blobs, you can use a tool like RedSn0w or iFaith to stitch them into a custom firmware or use TinyUmbrella to emulate a signing server. This bypasses the iTunes verification check. Without saved SHSH blobs for iOS 5.1.1, you cannot update or restore to that specific version and will be forced to update to the latest compatible iOS version instead.
0
moste55 • October 11, 2012 at 4:09pm
To resolve this, you need to use SHSH blobs for iOS 5.1.1. First, check if you have these blobs saved in Cydia or via TinyUmbrella. If you have them, download the latest version of RedSn0w and navigate to Extras, then Even More, and then Restore. Select the iOS 5.1.1 IPSW file you wish to use. You will then be prompted to provide your SHSH blobs. You can select Local if you saved them with TinyUmbrella or Remote if they are stored on the Cydia servers. This process allows you to bypass the Apple signing verification that iTunes requires.