As of late, iPhone 3GS/3G owners who have been waiting for the 06.15.00 baseband downgrade are given a ray of hope as MuscleNerd announces that the release of the downgrade is not too far off. As promised, world famous hacker collective iPhone Dev-Team has finally released the much awaited 06.15.00 baseband downgrade in the form another Redsn0w update. Read more after the jump for more details about the downgrade.
MuscleNerd announced through Twitter the release of Redsn0w 0.9.14b1, the version which features the new baseband downgrade. With this new Redsn0w functionality, users who are currently in 06.15.00 baseband will now be able to downgrade their baseband, specifically to 05.13.04. With 05.13.04, 3GS/3G users will not only gain Ultrasn0w compatibility but also a normal iPhone baseband with 100% full GPS functionality and the ability to use stock IPSWs again.
In order to start downgrading, the iPhone Dev-Team has provided the steps on their blog:
- 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).
- 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!
- 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.
The instruction also adds:
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.
Users who are looking to update their 3G/3GS to 06.15.00 baseband so they can downgrade to 05.13.04 can do so but there might be problems for 3GS users. The iPad baseband (06.15.00) is not compatible with 3GS units that have serial numbers that are 134 or later (xx134…). Doing so will brick your radio so consider yourself warned.