Iphone3GS old bootrom firmware 3.1.3 question

Discussion in 'Jailbreaks and iOS Hacks' started by gtjode, Jul 17, 2010.

  1. gtjode macrumors newbie

    Jul 17, 2010
    I dont know if am asking this correctly but here it goes.

    i have an iphone 3GS with old bootrom and firmware 3.1.3.
    I dont have an ShSh saved cause apple is not signing them.

    is it possible to upgrade to a custom JB OS4 custom or whatever.
    the phone was JB by spirit i think my friend did it for me..

    is that correct i hope so..

    and HI am new to all this :D:p
  2. dhlizard macrumors G4


    Mar 16, 2009
    The Jailbreak Community
    You will have to wait for new jailbreak tools.
  3. ClutchThese macrumors 65816


    Jun 25, 2010
    Alexandria, VA
    can't you backup your shsh with Cydia and then do a custom 4.0 and jailbreak with blackra1n?

    I may be way off.
  4. thelatinist macrumors 603


    Aug 15, 2009
    Connecticut, USA
    You are. S/he has a new bootrom phone, which can't be pwned. Also? It's too late to back up old SHSH.
  5. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    Actually if you have the old bootrom you can install spirit2Pwn from cydia.
    add the repo http://repo.woowiz.net to Cydia sources.
    Then once installed you can put your phone in Restore mode and update to custom 4.0 IPSW created with pwnage tool.
  6. AlvinNguyen macrumors 6502a

    Jun 23, 2010
    I don't know what the heck is going on with the hold 'you can't save SHSH anymore that's lower than 4.0.1' and I'm not an expert on this. I did back up my iPhone 4 on tiny umbrella before the cutoff time and I know you can no longer back up the iPhone 4's SHSH. What I CAN tell you is this is what I did YESTERDAY to a old bootrom 3GS (7/17/10):

    AT&T Locked iPhone 3GS 32gb (week 25th build, OLD 359.3 bootrom)

    Steps I took to Jailbreak / Unlock:

    Previous owner reseted settings and cleared contents (still on 3.1.2)
    Jailbreak 3.1.2 with Blackra1n
    Unlocked with sn0w
    Backed up SHSH in Cydia
    Download 4.0 for 3GS (download from iClarify and make sure your iphone isn't plugged in)
    Use Pwnage Tool to build custom IPSW
    Put the phone in recovery (NOT DFU - not sure why it wouldn't work with DFU)
    Install custom IPSW
    iPhone now jailbroken with custom IPSW
    Unlocked with Ultrasn0w through cydia

    I now have a working 32gb 3GS on iOS4 (old bootrom) on TMobile. I'm not sure why the DFU mode didn't work for me but I noticed this on several other 3G and 3GS I unlocked throughout the years. I would advise to still try DFU mode first, then try recovery if you can't get it to work.
  7. TMar macrumors 68000


    Jul 20, 2008
    There is no way you "backed up" your SHSH to Cydia yesterday for 3.1.2. It was more then likely already saved. You don't use DFU when upgrading.
  8. AlvinNguyen macrumors 6502a

    Jun 23, 2010
    So do you think I just got lucky with buying a phone that's previously jailbroken and SHSH saved? What's a good way to check with shsh Cydia has backed up for this. phone? I'm pretty sure it was never jailbroken because I got it off a guy on ATT who doesn't even know a thing about the iPhone other than that its on his ATT network and he has upgraded to a 4.

    If I got lucky, then I'll be damn that's pretty sweet. Not sure how that happened then. So according to what yore saying - no iPhones coming from ATT regardless if it's 2G 3G or 3GS can be jailbroken now unless it was done previously in the past?
  9. TMar macrumors 68000


    Jul 20, 2008
    Firmware verification is only done on the 3gs's, that's the reason SHSH's are stored. They have to be signed by Apple and only while it's the current firmware. The best way to check is to open cydia and see what SHSH's has store for your device (see image below).

    The blobs are only used when downgrading and since you didn't have to downgrade it's not a problem but there is no going back if you don't have the blobs for 3.1.2.


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