How To Check Your Bootloader Version

Since the 5.8 bootloader allows the baseband to be downgrader from 02.30.03 to 02.28.00 using Phasebandowngrader, I have decided to put together a tutorial on how to check your bootloader version. I should mention that this tutorial is for Mac users only. And by the way, you are assuming full responsibility by following this tutorial. If your iPhone gets bricked or anything for that matter, I am not responsible for it. Please dont send me any emails.

Now that the borring stuff out of the way, lets begin:

First of all make sure you have MobileTerminal and OpenSSH installed on your iPhone. You will need basic knowledge on how to ssh into your iPhone. If you dont know whats SSH means, please dont try this at home .. no i am serious.

—This to be done on the Mac—

1. Download this file and extract it to your Desktop.

2. Open your Terminal on your Mac (Utilities/Terminal)

3. Find out the IP of your iPhone. Also make sure that both your iPhone and your Mac are connected to the same network.

4. In the Mac terminal type:

scp ~/Desktop/BBUpdaterExtreme root@YOURIPHONEIP:/bin/BBUpdateExtreme

5. When prompted, enter the root password. The default one is ‘alpine’. But if you changed it, enter what you got.

6. In Mac terminal type:

ssh root@YOURIPHONEIP

7. Enter your password again. Default is ‘alpine’

8. Change the directory to “bin” by using this command:

cd /bin

9. Change the permissions on BBUpdater using your Mac Terminal:

chmod 755 BBUpdateExtreme

10. Launch the BBUpdater:

launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist

 

—This to be done on the iPhone—

11. On your iPhone open the mobile terminal and type:

su

12. Enter password. ‘alpine’ is the default.

13. Type:

BBUpdate queryversion

14. Look for the line like this:

Hope you got 5.8 If you do, you can downgrade your baseband to 02.28.00 using phasebandowngrade. We have a nice tutorial here…