Ipod wont start past apple logo? HELP ME!!!?

Plug It In your computer, open itunes and restore your ipod-it deletes jail breaking and it should work-btw jail breaking does work, you have to take care when installing software as there is software for different versions, so you will get compatibility issues especially with a 2 gen (as most jail breaking is for 3rd,4th and 5th gen nanos, ipad, and iphone/touch below 4.1