Is your iPod charging cable plugged in?
- Hold down ONLY the Sleep/Wake button until you see the "Slide to power off" switch.
- While still holding down the Sleep/Wake button, now hold the Home button as well for 15 seconds.
- After the iPod turns off, release the Sleep/Wake button and keep holding the Home button for 10 more seconds.
ONE THING: If you're trying to jailbreak your iPod touch, well... That's up to you. But I recommend not to jailbreak it because I have jailbroken mine before, and I have major setbacks on my device. If you want the best performance and battery length, then DO NOT JAILBREAK IT.