Step by Step Guide to Change iPhone Baseband

How to Downgrade iPhone Baseband with Sn0wbreeze

Many people nowadays dreams of  unlocking their locked iPhone for free, which I guess is impossible. There is only one method that may unlock your iPhone for free. But to unlock your iPhone you must have 01.59.00 Baseband. Today I will tell you how to change your iPhone Baseband. If you have got any of the following you can change your baseband to 01.59.00:

  • 04.12.01
  • 04.11.08
  • 4.10.01
  • 3.10.01
  • 2.10.04
Sn0wbreeze v2.9.8 to create custom baseband

Unlock iPhone

Related: iTunes Error 3194 Fix

First You have to Download

  1. Original iOS 5.1.1 Firmware
  2. Sn0wbreeze 
  3. redsn0w modded.


  1. Build a Custom Firmware using Pwnage Tool or Sn0wbreeze. Building a custom Firmware steps are very easy and you are guided by the software it self.
  2. Now open iTunes to Restore the Custom Firmware you’ve built. Use “Alt” + “Restore” button on MAC OS X and on windows use “Shift” + “Restore”.
  3. Then Open Redsn0w Modded now click on the Extras. Click on the Select IPSW and Select the IPSW File you have download form the Internet ( not the custom build). There will be appear an another window click “OK” and go back.
  4. Click on Jailbreak and wait while a minute once the process is completed check Install Cydia and Downgrade to 01.59.00.
  5. Click Next and Follow the steps which software directed.
  6. Congrats your iPhone baseband is changed to 01.59.00

Note: We do not take the responsibility that it will for sure Unlock your iPhone. We have demonstrated this tutorial for educational purpose.