[Chingas]

Pete. That procedure is for going into DFU mode. It's about 10 seconds holding power and home buttons.

Then release power and keep holding home for another 30 seconds.

The screen should "flash white" somewhere close to the original 10 second mark then with the home key still pressed and the finger of the power, the phone should restart.



The GreenPois0n I used was way back during the 3.x days. There is no GreenPois0n now for 4.3.



However Pete, you have lots of options for 4.2. I believe RedSn0w and UltraSn0w are both options for you.