It is hard to give a good answer as you are scarce with your information. What do you mean by locked out? What were you doing? Are you able to get in to the menus?
The link below should help you. Please take note of the warning under the word Change at the top of the page as Customer Service and Tech Support have a bad habit of telling people to do this. If you can access the menus then perform the master reset via the menu options. If you are unable to access the menus then use the alternative method at the bottom of the article
