can not update form v.2.0.2 to 3

please help me

i have reset factory after reset i have check firmware show v. 2.0.2  i will update to v. 3 but i can not update error display show “apple tv your up to date”

 

Do you currently have aTV Flash installed? If so, you may to re-enable the auto-update feature.

This can be done through the Maintenance > Settings menu.