Help me downgrade

Discussion in 'Jailbreaks and iOS Hacks' started by Jutonish, Apr 13, 2011.

  1. Jutonish macrumors newbie

    Joined:
    Apr 13, 2011
    #1
    Hello guys I'm new to MacRumors even to jailbreaking I wanna downgrade my iPhone 3G from 4.0.2 Firmware & 05.13.04 Baseband to 3.1.3 Firmware & 05.12.01 Baseband but I don't know how:confused: moreover I wanna save my downloaded apps so please help me! And what are the tools that I might use?:apple:
     
  2. sbddude macrumors 6502a

    Joined:
    Sep 27, 2010
    Location:
    Nor Cal, USA
    #2
    once you upgrade baseband you can't go back.

    for apps do you want to save itunes apps or cydia apps?
     
  3. Crystal-RX, Apr 13, 2011
    Last edited: Apr 13, 2011

    Crystal-RX macrumors 68030

    Crystal-RX

    Joined:
    Dec 22, 2008
    Location:
    Seattle, WA USA
    #3
    You can downgrade firmware to 3.1.3 but can't downgrade the baseband. 05.13.04 can be unlocked with ultrasn0w.

    Iclarified.com is where you should go to get all the tutorials relate to Apple products.
     
  4. Jutonish thread starter macrumors newbie

    Joined:
    Apr 13, 2011
    #4
    What should I do to use 3.1.3 firmware? What's DFU mode? I've been seeing it lately. What should I do if my iPhone takes too much time open everything even settings app.
    iTunes
     
  5. Crystal-RX macrumors 68030

    Crystal-RX

    Joined:
    Dec 22, 2008
    Location:
    Seattle, WA USA
    #5
    Actually, your Phone will be running faster with 3.1.3. Following is what you need to do to get it to 3.1.3

    1. Download 3G 3.1.3 firmware to your machine
    2. Download Tiny umbrella to your machine.
    3. Hook you your Iphone to your machine, open Itune.
    4. press shift + restore, then pick 3.1.3 firmware.
    5. at the end of the process, Itunes will give you a 1015 error.
    6. Open tiny umbrella, hit "exit recovery"
    7. You phone will boot up normally and will come up with emergency screen.

    You now then can jailbreak it.
     

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