In the recovery menu, scroll using the Bottom Right button to highlight “Wipe data/factory reset” . Select it by pressing the Top Right button.
Release both buttons. Use the Bottom Right button to scroll down through options. Stop on “Recovery Mode” . How to Hard Reset CASIO Pro Trek WSD-F20
Press and hold the Top Right button for about 10–15 seconds until the screen goes black and the watch vibrates. Release immediately. This forces a power-off. In the recovery menu, scroll using the Bottom
Scroll to “Yes — delete all user data” and press Top Right to confirm. In the recovery menu