going back to iOS 3.x?

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Hi,
I have a iPhone 3GS. It is jailbreaked since my operator doesn´t support iphones. I bought it with iOs3.1 which worked perfectly. I then upgrade to iOS5.1 because some apps, that I was interested in, did not work on 3.1. Unfortunatly since the upgrade I have the same problem as many other users: the phone sometimes just restarts while talking. Annoying. I did not find a solution for that on the web. But: is it possible to go back to iOS 3.x? How?
Thanks, swenniels
 

Raz0rEdge

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There is no official downgrade path. But if you google "iOS downgrade" you'll get a lot of info. You, however, need the firmware for iOS 3.x and a backup from that version to restore everything. Also, virtually no recent app will work with iOS 3.x.
 
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Australia. Just kidding. Somewhere in florida.
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MacBook Air running the epic Mountain Lion
Did you jailbreak ios 3.X? If yes then then use your shsh blobs from cydia to restore. Also maybe download the firmware ipsw you want to a computer and then shift+restore thru itunes may work. Happy downgrading!!
 
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Mac Pro 1,1, PBG4 17", iBook G3(366 Indigo), iPad Air (16G), iPhone 4(8GB).
Most apps require 4.2.1 or 5 to work. I know because I still have a 1st Gen Touch. :)

(have a 2nd Gen too, but hate the audio quality).
 

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