Hidden Tests for iPods

Most iPod owners know that they can reset their iPod in case of minor problems like if it refuses to power on or freezes up. This is usually the standard first step in troubleshooting iPod problems. The course of iPod troubleshooting is usually to use the iPod Updates from Apple to restore the iPod to a factory default state. If those options don't work, you typically need to get help directly from Apple for a sick iPod.

However, there's also a special (and until recently unpublished) diagnostic mode built into all generations and models of iPods that allows you to run a battery of tests on the iPod's hardware. These tests can help confirm a hardware problem or help you be aware of anything that might be wrong with your iPod before symptoms occur. I have yet to hear of anyone using this information when contacting Apple for support (which usually ends up being a replacement iPod), so I can't say how helpful knowing the exact source of the problem will be to the average iPod owner. For the geekier among us, though, it is a fascinating little tidbit of knowledge.