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Redsn0w 0.9.14b1 For Downgrade Baseband 6.15.00

Redsnow 0.9.14b1 has been revealed by iPhone Dev Team that has the ability to downgrade Baseband 6.15.00 For iPhone 3G/3GS. Redsnow 0.9.14b1 can downgrade specifically from 06.15 to 05.13.04 even if you never had 05.13.04 on that device before. RedSn0w 0.9.14 b1 provides both features as well as  ultrasn0w compatibility and a normal iPhone baseband with full GPS and the ability to use stock IPSWs again. Redsn0w 0.9.14 b1 gives the facility to downgrade the baseband from 06:15:00 to 05:13:04 for iPhone 3G user. Redsnow0.9.14 b1 will solve the GPS issues and also give these iPhone 3GS users the ability to use stock iOS firmware files again. Redsn0w is a tool which is use to jailbreak your device but now it also have the special feature of downgrading the basebands.

Downgrade ISPW

Downgrade ISPW

iPhone Dev Team Release Notes:

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:

  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 to proceed through the normal DFU ramdisk steps.

After the ramdisk gets launched and you see the Pwnapple running on your iPhone, 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!

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Download Redsn0w 0.9.14b1 For Windows

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One Response to “Redsn0w 0.9.14b1 For Downgrade Baseband 6.15.00”

  1. KlqV
    July 24, 2013 at 9:41 pm #

    625931 705202Woh I love your posts , bookmarked ! My wife and i take issue along with your last point. 350888

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