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Thread: how to upgrade jailbroken 3gs

  1. #1
    Default how to upgrade jailbroken 3gs
    Hi, I bought this iphone 3gs 2 years ago, it was jailbroken with 3.0 firmware. I would like to upgrade it to 4.0 firmware at least. I have asked around for the upgrade service but all of them said that there is NO way for 3gs to upgrade to 4.0 unless it has 3.0.1 at least. Is that true?
    If not, how would I do it? I have no experience in doing this but I would like to give it a try. Please give me the procedure as detailed as possible. Of course it would still be unlocked after the upgrade.
    Thanks!

  2. #2
    Superbad Modder-ator Simon's Avatar
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    First download tiny umbrella, press save SHSH and see what SHSH it can save for your device. That will tell us what firmwares you can restore to.

  3. #3
    Retired Moderator iYeow's Avatar
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    Create a custom firmware from Snowbreeze 1.7. You will need to download the 3gs 4.0 ipsw to do this.
    Put your iphone into recovery mode and Do the shift key on your keyboard + Restore button in Itunes to Snowbreeze_4.0.ipsw which is placed on your desktop after being created.
    Once restored , you are already jailbroken at 4.0
    Unlock with Ultrasn0w again from Cydia.
    You are all set.
    Last edited by iYeow; 2010-11-04 at 03:53 AM.

  4. #4
    Guys, will new pwnagetool not work direct from 3.0?

  5. #5
    He can't just back up the phone, upgrade to 4.1 through iTunes, jailbreak with Greenpois0n or Limera1n and then restore from backup? Does he rely on an unlock?

  6. #6
    Sorry I have to ask a lot of questions.
    how to create custom firmware with snowbreeze, where is snowbreeze? Where to download 4.0 ipsw? How to put phone in recovery mode, how to use ultrasnow?
    I am confused, sorry I havent done any of these before, it would be helpful if someone can write down the procedure for newbie.
    Thanks

  7. #7
    Retired Moderator iYeow's Avatar
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    I know you have the old bootrom, do you need an unlock ?

  8. #8
    He needs unlock according to op.

  9. #9
    Retired Moderator iYeow's Avatar
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    Update your itunes first.
    Alright , how about go all the way to IOS 4.1
    Download Snowbreeze 2.0.2 from here iH8sn0w.com | Jailbreak your iPod touches and iPhones
    Download the official firmware IOS 4.1 from here : iClarified - iPhone - Where To Download iPhone Firmware Files From
    Run Snowbreeze 2.0.2 > Use Expert mode > General > uncheck the activate my iphone > now click build > it will be placed on your desktop called Snowbreeze_4.1.ipsw
    Recovery mode : Turn off your iphone, while holding the Home Button, plug your iphone in until you see Itunes Cable logo on your iphone.
    Now put your iphone into recovery mode
    Do the Shift key + Restore (itunes) and browse to Snowbreeze_4.1.ipsw
    Once restored, put your official sim to trigger it into Home Screen
    Open up Cydia, let it update and install Ultrasnow from Cydia.
    That is it.

    I hope this is clear enough for you, otherwise i have nothing more to say.
    Goodluck.
    Last edited by iYeow; 2010-11-05 at 01:06 AM. Reason: Automerged Doublepost

  10. The Following User Says Thank You to iYeow For This Useful Post:

    Bo Troxell (2010-11-04)

  11. #10
    Community Manager Bo Troxell's Avatar
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    ^ great job yeow.

  12. #11
    what is official sim?

  13. #12
    Retired Moderator j3st3r's Avatar
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    a sim from the official carrier (AT&T in the U.S.)

  14. #13
    Retired Moderator iYeow's Avatar
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    If you have access to a Mac, then Pwnage tools 4.1.2 will hactivate and jailbreak for both new and old bootroms.

  15. The Following User Says Thank You to iYeow For This Useful Post:

    rhonda1015 (2010-11-07)

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