Highlight and press the Home button to select it.
Performing a hard reset on a Samsung Galaxy Gio (GT-S5660) Go to product viewer dialog for this item. Samsung Gio Hard Reset
Select and then tap Erase everything to begin the process. Option 3: Hard Reset via Secret Code Highlight and press the Home button to select it
Use this method if the phone is frozen, stuck on the Samsung logo, or if you cannot unlock the screen. : Completely turn off your Samsung Galaxy Gio stuck on the Samsung logo
You can also trigger a full reset by entering a specific code into the phone's dialer. : *2767*3855#
: Ensure your device has at least 50% battery to prevent it from shutting down mid-reset, which can cause permanent software damage. How To Factory Reset Samsung Phone