Hidden iPod Commands

There are a few iPod commands you may need at some point to put the iPod in its various modes or do a hard reset.  Hard Reset: You use a hard reset when your iPod won’t turn on or is frozen. Diagnostic Mode: Use diagnostic mode when you’ve already done a hard reset, but still can’t determine what’s wrong with it (advanced users only!) Disk Mode: disk mode is for when you want to use your iPod as a hard disk to store non-music files such as photos, documents etc. This website has a very handy, interactive display of what buttons to push for these commands on all generations of the iPod.