1. Sooks's Avatar
    Ok , so i bought my iphone 3GS yesterday , it came with 3.1.2 with a build date of the first week of december if that helps anything....

    I then pluged in my iphone and jailbroke it , and left it on itunes, well came back to it updated to 3.1.3 with no jailbreak obveously ....

    Anyways my question is when i was in cydia i chose the option for it to back up what ever was necessary for me to remain jailbroken if i accidentally upgraded.

    So mainly my question is how do i access that information now ? and how do i use that to get back to 3.1.2 and rejailbroken

    (forgive me if i am misunderstanding the option built into cydia... )
    02-11-2010 10:46 PM
  2. ghostface147's Avatar
    You have to re-jailbreak your device. There is no other way to access Cydia.
    02-12-2010 08:33 AM
  3. big9erfan's Avatar
    You need to find a 3.1.2 firmware for your 3GS and download it. Then read the information here:

    Caching Apple's Signature Server - Jay Freeman (saurik)

    This will let you restore against 3.1.2 even though Apple isn't signing that firmware anymore.

    Here is a similar post on how to do it:
    TUAW How To: Downgrading your 3.1.3 iPhone to 3.1.2

    Note, if you had to unlock your device you will NOT be able to do that. Jailbreak yes, unlock NO.
    02-12-2010 10:45 AM