hi guys. i've been using my UNLOCKED iphone 3G for past 6 months without any problems. but today, i was trying to update my phone everything was going right but suddenly the update proccess stopped, and since then i have these screens on my phone and pc. what should i do? should i unlock it again? how can i do that when i just have this screen on my phone? it doesnt allow me to do ANYTHING with my phone thanks a lot for your time and your help.