I went through the steps and "google" each step for failures, for example, the first step was to restore the iphone so i searched for "failed to restore the iphone" and i got so many suggestions on how to avoid that during the process. I did similar thing throughout the step by step guide while going through it.
Below is the summary of what i did to get the iphone unlocked:
- download the latest itunes from apple.
- install/upgrade itunes.
- download the latest version of the iphone software. The current version is 2.2.
- download QuickPwn2.2 , BL3.9 and BL4.6 .
- Place all downloads on one folder that is easily accessible.
- restore iphone using the iphone restore software downloaded.
- unzip QuickPwn2.2 to the same directory and and run it.
- Select the same file you used during restoration.
- select unlock iphone.
- select the bl3.9 and bl4.6 repectively.
- Follow the remaining of the instructions diplay on the screen as the process goes on.
- wait for few minutes to allow your iphone to flash and jalibreak the OS.
- thats all.. Now your iphone can work with any carrier. You can follow the screenshots from this link.