How To: Save Your SHSHs (Required For Downgrading) STICKY PLEASE

Discussion in 'Jailbreaks and iOS Hacks' started by twigg, Jul 14, 2010.

Thread Status:
Not open for further replies.
  1. twigg macrumors member

    Joined:
    Jun 20, 2010
    #1
    How To: Save Your SHSHs (Required For Downgrading)
    In order to downgrade an iPhone 3GS, iPhone 4, iPad (Wifi and 3G), iPod Touch 2G MC or iPod Touch 3G you need to save what is called an SHSH blob. If you have any other iDevice than it isnt required to downgrade.
    You DO NOT need to be jailbroken to do this!

    What is an SHSH blob and why is it required?
    Previously when jailbreaking the Dev Team would find an exploit in the iDevice's iOS (such as iBoot) and the Dev Team could get past updates by reusing these already Apple approved exploitable files to jailbreak. Essentially they would use a 2.1 iBoot that was exploitable and reuse it in place of a 2.1+ iBoot.
    Apple has since stopped this by using SHSH files when updating/downgrading iOS firmware. Whenever updating or downgrading, iTunes checks with Apples severs if the currently iOS being used is the latest, if it is an SHSH blob is given to iTunes to continue, if not, then it stops.

    The Steps
    Navigate to this page and download TinyUmbrella in the right hand side for your appropriate computer. Once its done downloading open it up (click through any popups and allow it to run) and you will be presented with this:
    [​IMG]

    Connect your iDevice (iPhone 4, etc) and wait for it to be recognized.
    [​IMG]

    Click "Save My SHSH".
    [​IMG]

    Your done! Your SHSH is stored on your computer and also on Cydia's severs. In the event that you accidentally update, you can downgrade the iOS that you saved the SHSH for and jailbreak.

    Note: A SHSH will only work for the iOS firmware that is was created on. An SHSH for iOS 3.x will not work for iOS 4.x
     
  2. twigg thread starter macrumors member

    Joined:
    Jun 20, 2010
    #3
    Opps, this should really be sticked though, either mine or yours.
     
  3. -aggie- macrumors P6

    -aggie-

    Joined:
    Jun 19, 2009
    Location:
    Where bunnies are welcome.
    #4
    Thelatinist’s. Nothing personal, but he’s made a number of threads that should be stickied. I’ve reported them to be stickied and nothing happens.
     
  4. twigg thread starter macrumors member

    Joined:
    Jun 20, 2010
    #5
    Should i just take this down? And Thelatinist, you should update the TinyUmbrella section in your thread. Feel free to use my pics if you want to.
     
  5. -aggie- macrumors P6

    -aggie-

    Joined:
    Jun 19, 2009
    Location:
    Where bunnies are welcome.
    #6
    What you could do is report thelatinist’s thread(s) and state to the mods that it should be stickied. I’ve not made any impression; the more the merrier.
     
  6. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #7
    Great info for everyone with iPhone 4 and 3GS models.
     
  7. swoosh0217 macrumors 6502a

    swoosh0217

    Joined:
    Nov 20, 2007
    Location:
    NW
    #8
    Twigg- thanks for posting this. Its been a while since I messed with my iPhones since owning a Nexus for 6 months. Now that I got the Iphone 4, ill go home and go through this process.

    One question though... Can I do this with my iPhone 4 brand new straight from the box?
     
  8. C8XY macrumors 6502

    Joined:
    May 11, 2008
    #9
    Yes, you can :)
     
Thread Status:
Not open for further replies.

Share This Page