- Get the tool
- Get Apple firmware (tell iTunes to download but not install)
- Allow the tool to find and patch the firmware
- Force the phone into update mode
- Flash the patched firmware onto your phone
- Restore your phone
The downside of jailbreaking is that whenever Apple pushes a new firmware out over iTunes, you have to wait for a new PwnageTool update which can patch the latest firmware. It has been my experience that it takes them on the order of several days to get out the PwnageTool update. Luckily, the tool which supports firmware 2.0.3 just came out, so I will be using that to update tonight. Happy jailbreaking!