Download Redsn0w 0.9.14b1
iPhone Dev Team Releases Redsn0w 0.9.14b1 to Downgrade Baseband 0.6.15.00 on iPhone 3G and iPhone 3GS. TheRedsn0w 0.9.14b1 allows you to Downgrade Baseband 06.15.00 to 05.13.04 even if you never had baseband 05.13.04 on your Device before, so this is best for ultrasn0w compatibility and a normal iphone basebands with full GPS and the ability to use IPSW once again.
To downgrade Baseband 06.15.00 on iPhone 3G/3GS run Redsn0w 0.9.14b1 and click on Extras option then Select IPSW button. Now Redsn0w will ask select Firmware which your are using, if your new bootrom 3GS user than you can ship this information. After that do a controlled shutdown your iPhone 3GS/3G (Very important step to avoid mount problems when the Ramdisk is running).
Then go back to the home screen of Redsn0w 0.9.14b1 and select on Jailbreak option to enable Downgrading from iPAd baseband. Then check box and disable Cydia if you already have installed and click next to proceed through DFU Ramdisk steps.
Now relax and wait long 3-8 minutes to downgrade Baseband 06.15.00 to 05.13.04. When the process succesfully done, kindly reboot your iPhone 3G/3GS. That’s it you done successfully Downgrade 06.15.00 to 05.13.04 on your iPhone 3G/3GS.
Download Redsn0w 0.9.14b1 :
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