Ive had my iphone 4 jailbroken since about last March. I have not updated it since. I feel like im living in the stone age so would like to update the software. Now I understand that I will loose the jailbreak (which is fine with me for now). However I do not know if there is any extra steps/precations I should take before upgrading. Is there anything special I have to do? or do I just hook her up, click upgrade and everything should flow smoothly? Thanks in advance for any help.