I've downloaded the IOS5 IPSW from Apple's site and want to update it from within iTunes. So,
- Does the update require an Internet connection?
- Does the iPhone switch off/reboot just as the update is initiated?
I ask because I'm at my new place where I'm yet to setup an Internet connection & my iPhone tethered to my laptop is my only Internet connection. I don't want my phone to be bricked because it cannot verify the update or what-not because there's no Internet connection.