Hello Guys

I have a little question. I am a windows user and I have unlocked my iphone (current firmware 1.0.2) thanks to the website nounlock.com. It works perfectly: I can make calls, send sms, youtube, wifi...

but I'd like to update to 1.1.1 ... Is it possible ? Do I need to reverginize it ? Which tuto should I follow ?

:p Thanks