Can I update to iOS 5.1.1 even though iOS 6 is out?
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mohdsamim • November 2, 2012 at 6:33pm
I have an iPhone 4 (GSM) running on iOS 4.2.1 and it is currently locked. I would like to update to iOS 5.1.1 and preserve my baseband even though iOS 6 has been released, as I prefer the untethered jailbreak available for version 5.1.1. I have saved my SHSH blobs for iOS 4.2.1, 5.1.1, 6.0, and 6.0.1. Is there a specific guide or method to accomplish this update while preserving the baseband?
Answers
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iClarified • January 12, 2026 at 3:30am
Yes, since you have the SHSH blobs for iOS 5.1.1, you can update to that specific version even though iOS 6 has been released. Since you are using an iPhone 4, you can use Redsn0w or iFaith to create a stitched custom IPSW. This process embeds your blobs into the firmware file, allowing iTunes to verify the restore despite Apple no longer signing the software. To preserve your baseband, you should use the Custom IPSW feature in Redsn0w or Sn0wbreeze. This ensures that the baseband version is not upgraded, which is essential for maintaining your unlock. Once you have the custom IPSW, place your iPhone into Pwned DFU mode and use iTunes to restore. After the restore is complete, you can use Absinthe or Redsn0w to perform an untethered jailbreak on iOS 5.1.1.