Downgrade iOS 4.3.5 To 4.1 On iPhone 3GS

If you hate iOS 4.3.5 because there is no untethered jailbreak and need to downgrade your firmware to a version which has an untethered jailbreak, Here’s the way to do just that.

First of all here’s what you will need :

• Ireb4 [Download From HERE].


• iOS 4.1 custom firmware (made by sn0wbreeze) [Download - Part 1 - Part 2 ].


• redsn0w 0.9.6 [Download From HERE or HERE].


• iTunes 10.4

And here’s the steps :

• Step 1: Run Ireb4 , your iPhone 3GS will enter dfu mode.


• Step 2: Go to iTunes and flash 4.1 custom firmware ipsw.


• Step 3: Jailbreak your iPhone 3GS with Redsn0w 0.9.6b6 [Guide]


• Step 4: Unlock your iPhone 3GS with ultrasn0w [Guide]

These method was tried by a user and we didn’t try it yet. So if you will go through with it, Feed us back.


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Posted in: Jailbreak Iphone