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.

Whether you’re troubleshooting persistent glitches, preparing your watch for a new owner, or simply want a fresh start, a hard reset (factory reset) on the CASIO Pro Trek WSD-F20 restores the device to its out-of-the-box state. Unlike a simple reboot, this process erases all user data, accounts, and downloaded apps.

Scroll down and select System .

Press the Top Right button once to select.

Wait 2–3 minutes. The watch will reboot, show the CASIO logo, and then present the language selection screen — indicating a successful hard reset. Method 2: Hard Reset Using Hardware Buttons (For Unresponsive Watch) If the watch is frozen, stuck on a logo, or the touchscreen isn’t working, use this method.

Scroll to “Yes — delete all user data” and press Top Right to confirm.

(This key combo unlocks the hidden recovery menu. It may take 1–2 tries.)

Scroll and tap Settings (the gear icon).