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Thread: The Ultimate Downgrade Tutorial

  1. #161
    Default Stock 3GS 4.3.3 05.15.04
    HI, anyone knows finally how can i unlock the 3gs 4.3.3 baseband 05.15.04 or any way to downgrade??

    thanks a lot!!!

  2. #162
    Superbad Modder-ator Simon's Avatar
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    Quote Originally Posted by dltchm View Post
    HI, anyone knows finally how can i unlock the 3gs 4.3.3 baseband 05.15.04 or any way to downgrade??

    thanks a lot!!!
    Nope, only with the iPad baseband.

  3. #163
    Can I UNLOCK my 3GS 4.2.1 baseband 05.15.04 NEW bootrom by downgrading to 3.1.3? Also, GPS will work? Thanks a bunch.

  4. #164
    My iPhone is a Part of Me
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    no

  5. #165
    Quote Originally Posted by bondkt View Post
    no
    Clearify please?

  6. #166
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    sorry, sleepy. that bb can't be unlocked. even if you downgrade it will NEVER be able to downgrade the baseband. if you need unlock, only option is to go to ipad bb 6.15 and loose GPS probably or use grevy(or whatever it's called) sim unlock.

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    tikz (2011-06-11)

  8. #167
    The 4.2.1 has been in your list for a year. lOl


    I did search for Grevy before, haven't seen any for my 3GS. Any suggestion? Thanks again.

  9. #168
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    yeah but downgrading has never and will never be able to downgrade your baseband. downgrading is supported if you have the shsh files for that fw, but it won't ever do your baseband (apple won't allow it).

  10. #169
    Hi hope someone can help a frustrated iphone user!

    Both me and my OH have an iphone that we had unlocked when we moved to Spain so we could use them on our new network

    Of course we forgot this fact and as per the 'norm' agreed to update them when prompted by itunes - subsequently we got them both screwed up.

    As I understand it we need to downgrade the software and I have read a lot of the instructions. Where I am stuck so far is that the firmware download always downloads as a zip file - on one of the websites it just says change the end to .ipsw but when I right click and add this extension it doesn't change it from a zip file - anyone help me out here?

    And please, if you have any advice feel free - I have no idea about this stuff - just want to get our phones to work again!

  11. #170

  12. #171
    Quote Originally Posted by Simon View Post
    Download the firmware file with firefox.
    It's not possible with IE? I don't want to keep installing new bits if I can help it but if it's the only way....

  13. #172
    Superbad Modder-ator Simon's Avatar
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    You can always change the extensions the right way if you dont want to install firefox: Show or hide file name extensions

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