3G Mobiles

Step One

Launch Cydia by pressings its icon on your SpringBoard.

Step Two

Press to select the Sections tab at the bottom of the screen.

Step Three

Press to select iClarifed from the list of Sections. If you don’t see iClarified you will need to add the iClarified source using these instructions.

Step Four

Press to select DownBB from the list of Packages.

Step Five

Press the Install button at the top right of the screen.

Step Six

Press the Confirm button to begin installation.

Step Seven

Once installation has completed successfully press the large Return to Cydia button.

Step Eight

Press the Home button to return to your SpringBoard then press to launch Terminal

Step Nine

Enter su into the terminal window then enter alpine when prompted for a password.

Step Ten

Enter DownBB into the terminal window to launch the baseband downgrade script.

Step Eleven

You will be asked to confirm you would like to continue. Please make sure you are on the 2.30 baseband and have the 5.8 bootloader before entering yes into the window.

Step Twelve

DownBB will now execute the script which downgrades your baseband.

Step Thirteen

Once the script has completed it will automatically reboot your iPhone.

Step Fourteen

Please note you will now be on the 2.28 baseband.