COWON D2 can return to Factory Default aside form the default settings. When initialized, all setting values will be deleted and changed to Factory default setting. It doesn't erase any existing data and the firmware. (Only the settings will be lost.) 1. Please turn on the power. 2. At the Mode selection screen, please follow the steps as following orders; Movie ? Settings ? Picture ? Recording. After that, please turn off the power.   3. When initialized, the language setting screen will appear when the player is turned on. Thank you.