Today, Apple released the first iOS 5 update, updating from 5.0 to 5.0.1, fixing the battery problem. And this was the first chance to use the new over-the-air update, meaning updating the iOS without plugging it into a computer. So how does it work? Let me show you.
If you don’t get a pop-up telling you about the update, you can go look for it by choosing Settings -> General -> Software Update on your iOS device. Your device will perform the check, and show you the result. If it finds an update, just press Download and install, and the process is pretty self explanatory.
You must have over 50% left of your battery, or be plugged into a socket, to do the update,
Unlike the previous updates, this update just sends you the updated parts, not everything as it used to do.
Worked like a charm.