Although iPods are known to “just work,” they can sometimes be difficult to handle. This can be just a freeze of the application, or a more serious freeze of the device itself. Often, a simple restart of the iPod is enough to fix the problem. Read this guide to find out how.
Steps
Method 1 of 2: Reboot a running iPod

Step 1. Press the power key
It's on the top of the iPod. After a couple of seconds, the "Disable" slider will appear. Release the power key after the slider appears.

Step 2. Drag the slider to the right with your finger
Your iPod will start shutting down. Make sure it is completely off before pressing any other buttons.

Step 3. Press the power key again to turn on the iPod
The problem that bothered you will be fixed.
Method 2 of 2: Restarting a frozen iPod

Step 1. Simultaneously hold down the power key and the Home button
The Home button is central and located at the bottom of the iPod. Keep both buttons pressed for 10 seconds. When the iPod reboots, the Apple logo appears.

Step 2. Release the buttons when you see the Apple logo
The iPod will now begin to recover. Wait a bit - if it really does freeze, it may take about a minute for a full recovery.
If your iPod won't turn on or shows a red battery icon, charge it
Step 3. Restore your iPod
If your iPod remains frozen, restoring using iTunes may help resolve the issue. This will destroy all of your data, but you can get it back by making a backup first.
- Connect your iPod to your computer and open iTunes.
- Select your iPod from the device list. If you can't see your iPod, you may need to put it in DFU mode.
- Click "Restore" in the right window. This will reset your iPod to factory settings, which will fix the issue that caused your iPod to freeze.
- Download the backup. After your iPod has been reset to factory settings, you will be prompted to download a backup to restore your data. You can choose backups from both your computer and iCloud.
Step 4. Tell Apple
If your device still doesn't work, or the problem persists after restoring, your iPod might be defective. Contact Apple to find out if your device is under warranty for replacement or repair at a later date.