iPhone 4 on iOS 6.0.1, can I upgrade to 6.1.13?

Discussion in 'iOS 6' started by BUnit1701, Jan 21, 2014.

  1. BUnit1701 macrumors newbie

    Jan 21, 2014
    The title says it all, I want to know if upgrades to unsigned iOS versions are possible. I know downgrading from iOS7 isn't possible.
  2. curiosity, Jan 21, 2014
    Last edited: Jan 21, 2014

    curiosity macrumors regular

    Sep 3, 2013
    You can't, only if you have done so in the past when 6.1.3 was still signed by Apple's servers AND used a tool like iFaith to save the so called SHSH blobs that are unique to your device and change when you change the iOS version.

    I suggest you do it now and save your blobs (it's a single file) in multiple locations so you never lose it. Then you should be able to downgrade to 6.0.1 at any given time (currently you need iTunes 11.0.5 to do that).
  3. Altemose macrumors G3


    Mar 26, 2013
    Elkton, Maryland
    Like was mentioned earlier, if you love iOS 6 then backup those blobs. iTunes will not allow you to go to any firmware but the current for your device.

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