What do you mean "how to upgrade an iPad"? You plug it in, start iTunes, click Upgrade and that's it!
That's what I thought before starting the process. After all, it's Apple we're talking about, right?
I am trying to upgrade my father's iPad 1 to iOS 5 using a brand new Windows 7 profile on my laptop. I plugged the iPad in, and it complained because the relevant Windows service was down.
An UAC elevation and a trip to the services interface later, iTunes informed me that if I didn't transfer purchases to my computer I'd lose them, and asked me if I wanted to continue. Continue to what, upgrading or transferring?
A cancel and a right click on iPad → Transfer purchases later, iTunes told me that the upgrade would wipe the iPad completely clean and that I'd need to sync everything beforehand, and asked me if I wanted to continue... doing what? Upgrading while losing all the data or doing syncronization?
Now I'm stumped. The iPad "tabs" show all sync options are disabled. When I enable them, iTunes warns me that by doing that the iPad content will be replaced by the computer content, which would be absolutely nothing.
So, here's my apparently simple question. I'm really surprised I have to ask...
How can I upgrade an iPad (or an iPod) to a newer version of iOS using a brand new computer without losing data in the process?
Is a backup what I want perhaps? Would a backup include the current version of iOS, making the restoring process undo the upgrade in the first place?