Press and hold learn button for 3 seconds until your KONIG begins to beep and flash a blue light. Hold down the power button for 3 seconds, until your KONIG flashes green and beeps 3 times, indicating all numeric keycodes have been successfully deleted off of the memory. IMPORTANT: Do NOT fully close the lid if no other entry keys, codes, or prints programmed into your KONIG. **Note: If your KONIG's memory is completely wiped, the lid will remain open and a purple light will begin flashing. Your KONIG will go into sleep mode after 10 seconds of inactivity but will remain open until a new RFID, fingerprint or keycode is programmed successfully.