iPhone Downgrading and shsh blobs

Discussion in 'Jailbreaks and iOS Hacks' started by gianthobbit, May 6, 2013.

  1. gianthobbit macrumors 6502

    Apr 20, 2010
    I don't understand what blobs are and their purpose.

    I jailbroke my iPhone 5 a whole ago when ios6 jb first came out.

    Would cydia have saved a copy? How would I be able to tell?

  2. darricksailo macrumors 601


    Dec 18, 2012
    Auto saved cydia blobs for iOS 7 are not valid. However, manually saved blobs are valid. Open cydia and click TSS center, that will tell you what valid shsh blobs cydia has for your device.
  3. gianthobbit thread starter macrumors 6502

    Apr 20, 2010

    How do I open cydia if it is not installed (not jailbroken) ? I tried their website but looks like that info is only in the app.
  4. TriJetHero macrumors 601


    Oct 13, 2010

    Your first post says jailbroken and now you say not jailbroken?

    Try reading up on jailbreaking.

    If Cydia is not installed your not jailbroken (unless your removed it…)

    If not jailbroken and you did not save SHSH's manually, you won't have them and can't get them anymore except for 6.1.4 which is now the only signed firmware on the IP5
  5. darricksailo macrumors 601


    Dec 18, 2012
    And to add, shsh blobs are currently useless for the iPhone 5 so no way to downgrade
  6. gianthobbit thread starter macrumors 6502

    Apr 20, 2010
    I posted that I jailbroke a while ago, when jb first came out for iPhone 5. Not currently jailbroken.

    I never manually saves shsh but maybe 6.1.4 was saved automatically.

    How do I find that out without cydia installed? Do I have to do a tethered jailbreak?
  7. Tyler23 macrumors 603


    Dec 2, 2010
    Atlanta, GA
    What iOS are you on? If it's 6.1.3 or above, you can't do any sort of jailbreak, tethered or untethered. You are stuck without the ability to jailbreak at all until after iOS 7.
  8. dhlizard macrumors G4


    Mar 16, 2009
    The Jailbreak Community
    As darricksailo stated, saved SHSH for iPhone 5 cannot currently be used for firmware restores.
  9. darricksailo macrumors 601


    Dec 18, 2012
    If you never manually saved shsh blobs, then the ones cydia has for you (6.0-6.1.2) are invalid

    At the moment, tinyumbrella isn't updated to validate the shsh blobs. Only iFaith can properly check if the shsh is valid or not as of right now

    Use tinyumbrella to get your 6.1.4 blobs (point it to apple's server). But honestly, those 6.1.4 will be useless for an iPhone 5 should there be a downgrade exploit unless a bootrom exploit is discovered
  10. Applejuiced macrumors Westmere


    Apr 16, 2008
    At the iPhone hacks section.
    Even if you saved them you cannot use them to downgrade an iphone 5 to older firmware versions.
    If you're on 6.1.3 or 6.1.4 there's nothing you can do to JB it.

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