I bought a 1.1.2 otb in december, downgraded to 1.1.1, jailbroke 1.1.1, upgraded back to 1.1.2, and jailbroke that - now, do I have to do anything special before doing the hardware unlock (i.e. downgrade to 1.1.1), or can I proceed as is done in the tutorials (just skipping the jailbreaking)? Thanks much!