Updated redsn0w Beta Improves Baseband Downgrading


Submitted by Demonchild; July 08, 2012


Development of redsn0w is progressing with a new release. If you haven't been following the iPad and iPhone news lately, the last version of redsn0w that we covered was able to jailbreak the iOS 6 beta. Not only that, it provided users with a method of downgrading from the once permanent iPad baseband.

This version of redsn0w gets the beta tag. With this, iPad baseband downgrading should be easier to achieve as redsn0w will now work with all the NOR chips found between the iPhone 3G and 3GS. The downgrade process has also been changed:

  1. Connect your iPhone in normal mode, then click Jailbreak after redsn0w identifies its model and BB version (you neednt pre-select the IPSW anymore).
  2. Choose the Downgrade from iPad baseband option (you neednt worry about de-selecting Cydia anymore).
  3. Do a controlled slide to power off shutdown of your phone and proceed through the normal DFU ramdisk steps.

Remember that this involves technical stuff in which can brick your iPhone. For those attempting the downgrade on a 3GS, take a look at this warning:

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!

You can pick up the latest version of the redsn0w beta below.

Download: redsn0w 0.9.13 Beta 2 (OSX|Windows)

Source: iPhone Dev Team




Tags: dev team, iOS, ios 6, iphone, Jailbreak, Redsn0w




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Comments 


 
# Guest 2012-07-08 15:44

b1 failed

b2 GPS is alive!


Reply
 

 
# StephenJohnson 2012-07-19 12:52

Wow, what a crazy ride!  -------------------

And all I had to do in the first place was call AT&T and ask for an unlock on my 3G "out of the 2 year contract" phone to get an unlock! 

But instead I listened to the naysayers that AT&T just laughs when asking for an unlock, maybe on a new iPhone but not on a phone nearly a year past the 2 year contract. - SO a couple of months ago, I jailbroke my phone, tried all the unlocks I could find, finally did the iPad update when supposedly I could downgrade it, went without GPS for a few weeks. Talked to AT&T today, got an official unlock from them but got stuck in restore apparently because of the iPad bb. Using redsn0w, I was able to get it back out of recovery with a basic iOS install, still had iPad bb, reran redsn0w to downgrade bb, it wiped all networking, antenna in system (all blank) but then I was able to restore with iTunes and Apple unlock. Syncing all my apps, data, now. So, now I could jailbreak again - but probably another day!

Lesson learned! Ask the simple questions first, then take the hard way, if necessary.


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