Scroll and tap Settings (the gear icon).
After reset completes, select “Reboot system now” with the Top Right button. How to Hard Reset CASIO Pro Trek WSD-F20
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 and tap Settings (the gear icon)
(This key combo unlocks the hidden recovery menu. It may take 1–2 tries.) Unlike a simple reboot, this process erases all
In the recovery menu, scroll using the Bottom Right button to highlight “Wipe data/factory reset” . Select it by pressing the Top Right button.
The watch will reboot into a new menu with an Android robot lying down. Now, press and hold the Top Right button, then press and release the Bottom Right button once while still holding the Top button. Finally, release the Top button.
Scroll down and select System .