
click to enlarge
Once you have completed this process your
iTunes players will download the software update, and you can view the

click to enlarge
progress in the top play display. It will then process through your iPod Touch, preparing it for the update. This is part of the process of syncing your
iPod Touch. This is followed up by backing up your iPod Touch, which is important to save the information before putting in the iPod Touch iOS 4 update. This process is going to take a little bit of time. Once that has finished it will extract the software, and then prepare the iPod Touch for restore. This will turn off your iPod Touch and then prompt it to restart again. You will be able to watch a progress bar on your touch screen while this occurs, so you will know when it has completed. Your iPod Touch will then be returned to its factory settings, and after its restart occurs you will be able to see it back in your iTunes. Once this is done your iPod Touch will then restore itself from the back up you selected on iTunes, which will return all the relevant media and content to your iPod Touch that was lost in the iOS 4 update process. This will take several minutes. After this it will go through a normal syncing process.