I know I'm a bit late with this but I have questions before I do this upgrade.
Last time I agreed to do an upgrade,my phone went black and I spent 5 hours on the phone to a boy in Kentucky (apple customer services) he got it back but everything was gone. He said that I shouldn't do the upgrade over the wi fi and I have to plug it in to I tunes.
So I'm worried about doing this new upgrade.
I don't have access to iTunes as computer is in storage at the moment.
Anyone know anything about this?