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Discussion in 'iPhone' started by N4CQD, Jul 2, 2010.
How do I restore my iPhone from 4.0 back to 3.12?
Wrong place for this. Also try searching before posting. Here's how to downgrade to 3.13:
This is a question about the iPhone....this is the iPhone forum, so why is this the wrong place for this??
restore your iPhone's firmware to 312, then, if it's stuck into Connect to iTunes screen, run RecBoot, and then unlock with blackra1n if you have to. In my case, I didn't need running RecBoot, blackra1n did the thing just great. Everything takes 10-15 min with the firmware restore being the longest part.
I followed the instructions shown on the URL:
But it failed to load the previous version, I downloaded and tried v 3.1, 3.12 and 3.13) got a few minutes into each of them, then told me that it failed. I never got to the point where I could run RecBoot.
Would appreciate any other suggestions. Thanks.
If its a 3G you can just download an official 3.1.2 ipsw and restore to that thru itunes.
If you're on 3GS you cannot downgrade your firmware unless you have your SHSH's saved for the particular firmware version.
Good info. Two questions.
What does SHSH stand for?
How can I check whether I did save SHSH?
have you jailbroken before?
The 3.1.3 firmware is ridiculous when trying to downgrade, I gave up and just went to 3.1.2