Depress the BACK key several times until you get to the top menu which should show STATIONS, PERSONAL RADIO. Rotate the Dial/Select to CONFIGURE and press SELECT. Turn the knob again until FACTORY RESET or RESET TO FACTORY DEFAULTS is displayed and then press SELECT. Rotate the dial to underline YES and press SELECT. The Display will now say FACTORY RESET COMPLETE. You must wait for the radio to restart before the reset is indeed complete.