Updating ipod nano software
But any time it does release an i Pod software update, you should install it.
Restoring your i Pod erases all of its data and settings and returns it to the state it was in when you first got it.
After it's been restored, then you can update the operating system.
You may experience a different sound level with different earbuds or headphones and with different EQ settings.
Some hearing experts suggest that you set the volume while in a quiet environment, turn the volume down if you can’t hear people speaking near you, avoid turning up the volume to block out noisy surroundings, and limit the amount of time that you use earbuds or headphones at high volume. The Volume Limit setting lets you change the maximum output of your i Pod’s headphone jack.