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Thread: Download latest RedSn0w ver 0.9.14b1 - DownGrade 6.15 to 05.13.04

  1. #1
    Super Moderator GSM_Update's Avatar
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    Default Download latest RedSn0w ver 0.9.14b1 - DownGrade 6.15 to 05.13.04

    RedSn0w 0.9.14b1 - How to DownGrade 6.15 to 05.13.04

    The iPhone Dev Team is happy to announce a baseband downgrade option in redsn0w for those who are using the iPad’s 06.15 baseband on the iPhone3G or iPhone3GS.

    Typically you’d have the 06.15 baseband if you unlock with ultrasn0w but updated your iPhone baseband past 05.13.04. With this new capability, you can now downgrade specifically from 06.15 to 05.13.04 (even if you never had 05.13.04 on that device before). This gives you the best of both worlds: ultrasn0w compatibility and a normal iPhone baseband with full GPS and the ability to use stock IPSWs again.

    here are the steps that will be used:

    1.Use the “Extras->Select IPSW” button in redsn0w to tell it which firmware version you have installed (new-bootrom 3GS users can usually skip this step but it doesn’t hurt for them to do it too).

    2.Do a controlled shutdown of your iPhone (“slide to power off”). This step is very important to avoid mount problems when the ramdisk is running!

    3.Go back to the first screen and click “Jailbreak”. Enable the “Downgrade from iPad baseband” checkbox, disable Cydia if you already have it installed, and click Next proceed through the normal DFU ramdisk steps.

    After the ramdisk gets launched and you see the running Pwnapple, you’ll eventually get to the “Flashing Baseband” step. THIS STEP TAKES A VERY LONG TIME to complete and there won’t be any feedback while its running. Please just let it be for the next 3-8 minutes! When the ramdisk has done its job it will reboot the phone on its own.

    For those who are wondering if you can update your 3G or 3GS to 06.15 solely for the purposes of downgrading to 05.13.04, the answer is “yes” for 3G owners, and “maybe” for 3GS owners. The iPad baseband is not compatible with 3GS units manufactured week 34 of 2011 or later. If you have an iPhone3GS and if digits 3-5 of its Serial Number are 134 or later (xx134…), then you should NOT try to install the 06.15 baseband on your 3GS! It will brick your radio, preventing both the downgrade from working and normal iPhone software from using it as a phone! Be warned!

    Download link - redsn0w 0.9.14b1 for windows
    Download link - redsn0w 0.9.14b1 for Mac

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  3. #2
    Super Moderator GSM_Update's Avatar
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    Default Here is the step by step picture guide to downgrade baseband v from 6.15 to 5.13.04

    The iPhone Dev-Team has released an updated version of redsn0w that will allow iPhone3GS and iPhone3G users to downgrade their device's iPad baseband 6.15 which was performed in order to unlock the devices. This however casued certain unexpected issues like battery drainage and loss of GPS in iPhone3GS. It was mandatory to flash iPad's 6.15 baseband on iPhone3G and 3GS as that was the only unlockable baseband that could be unlocked using iPhone Dev-Team's Ultrasn0w unlock. Musclenerd made an announcement earlier that a tool will be released in future that would allow the possibility of downgrading iPhone3GS and 3G basebands to an unlock-able version.

    Having said that, today the iPhone Dev-Team proudly announced the release of updated Redsn0w that allows the users to
    downgrade their basebands. Since playing with basebands is not cool, we decided to prepare an easy to follow instructions guide to downgrade 6.15 baseband.

    Steps To Downgrade iPhone3GS & 3G 6.15 Baseband

    Step 1

    Download the latest version of Redsn0w and the current firmware of your device

    Step 2
    Extract the contents of the Redsn0w archive that you just downloaded.

    Step 3
    Connect your iPhone3GS or 3G and Launch Redsn0w.
    (Windows7 users should select the option of running as administrator by right clicking on redsn0w application and then selecting the option - Run as administrator)

    Step 4
    In the redsn0w, go to extras menu

    Step 5
    From the extras menu, select 'Select IPSW' option

    Step 6
    Navigate to the folder where you download the current firmware of your device and select the firmware and click open.

    Step 7

    Click Ok to confirm the firmware selection

    Step 8
    Select 'Yes' if your iPhone3GS is newer model or else select 'No'
    Put your device into DFU mode

    Step 9
    Now go back to the main menu and select the option 'Jailbreak'

    Step 10
    The jailbreak process will begin and then Redsn0w will show more options where you need to select 'Downgrade From iPad Baseband' and then click next.

    Step 11
    Put your device into DFU mode

    • Power off the device completely
    • Hold power button for 3 seconds
    • without releasing the power button, press and hold home button for 10 seconds.
    • Now release the power button and continue holding the home button .

    Redsn0w will use limera1n to exploit your device to enter into pwndfu mode. Once done, continue with the steps. Redsn0w will now start processing your device's build

    Step 12
    Redsn0w will now inform you that the rest of the process will happen in your device.

    Step 13
    Your device should show some scrolling text and then you should be able to see the pineapple logo indicating 'Flashing Baseband (don't interrupt). Its serious, don't unplug or do anything stupid or you'll never be able to use your device again.

    Step 14
    Once done, your iPhone will reboot and you should have 5.13.04 baseband.

    And you are Done!

    If you have any questions or facing any issues, post them below

    If you have any comment related to improvement of my thread presentation comment down

  4. #3
    Junior Member rascal27's Avatar
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    Oct 2012
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    thanks for the instruction...just now i download redsnow from ijailbreak providing free software download like redsnow,snowbreeze,greenpoison etc..........any one can use it........

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