iOS iPhone 4 Downgrade without SHSH - Geekgrade Beta - ExtM

Discussion in 'iPhone, iPod & iPad' started by jonthedit, Feb 9, 2015.

  1. jonthedit
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    jonthedit GBAtemp Advanced Maniac

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    This thread just serves to show that Kyouhei's iPhone 4- which he only had SHSH blob 6.1.3 - can be downgraded to firmware iOS 4 - 6 without blobs. This applies to ALL A4 devices.
    The difference here is the current GeekGrade firmware locks up the device after a period of time.
    [​IMG]
    otherimages

    Kyouhei can verify the serial number. - here take a PM from when I was asking about the phone before buying it - [​IMG]
    bowser - you were interested.
    Once I get the kinks worked out I will release my personal version of the firmware- with fixes and Cydia for iOS 4 and 6.1.3.
     
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  2. bowser

    bowser Mwa ha ha ha!

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    Hello, were you able to finish this? Would love to upgrade to iOS 6 :)
     
  3. jonthedit
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    jonthedit GBAtemp Advanced Maniac

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    Haven't worked on it. Been more working into a different field sadly. What phone/model?
    There were a few quirks with using the modified firmware- most could be remedied though.
     
  4. bowser

    bowser Mwa ha ha ha!

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    iPhone 4 on iOS 5. Factory unlocked.
     
  5. jonthedit
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    jonthedit GBAtemp Advanced Maniac

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    Oh. Actually I was referring to CDMA/GSM and which revision. If you have no idea what I am talking about a quick google search will help you identify which iPhone 4 type you have.

    Have you saved your iOS 5 blobs? Are you on 5.0? 5.0.1? 5.1? 5.1.1??
     
  6. bowser

    bowser Mwa ha ha ha!

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    Oh oops :P

    I have a 16GB iPhone 4 GSM (NOT rev A) on 5.0.1. I've got the blobs for 5.0.1 and some 5.x betas. No blobs for 6.x
     
  7. jonthedit
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    jonthedit GBAtemp Advanced Maniac

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    Hey great news for you!
    @beehindowngrade [twitter] has made progress and plans on enabling downgrading for all 32-bit devices to any iOS firmware without blobs!
    I successfully used their beta 0.4 on my iPad 2 [only iPad 2 and iPhone 4S supported ATM] and was able to downgrade to 6.1.3 without blobs!!
     
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