Recently developed exploit allows people to downgrade iPhone 3G baseband from 02.30.03 to 02.28.00. This can be done using a downgrader called, Bootloader v 5.8. Bootloader v 5.8 is a hack that wllows users with iPhone Firmware 2.2.1 to get their phones unlocked via Yellowsn0w after successfully downgrading the baseband. It was not possible days ago as the downgrading process required users to upload files via SSH and executing it via shell. Just to prevent that limitation, developers created an easy-to-use automated GUI for downgrading the iPhone 3G Baseband automatically.

How to downgrade iPhone 3G Baseband

1. Lunch Cydia first.

2. Make a search for “3G Baseband Downgrade” and get it installed.

3. Now launch the application from the springboard and follow it’s instructions.

4. Restart your iPhone for the changes to take effect.

5. You are done.

Following above steps carefully will downgrade iPhone 3G Baseband from 02.30.03 to 02.28.00 instantly. Enjoy the hack.