Samsung Gear hard resetTo get into the recovery menu on your Samsung gear smartwatch,
1. Press and hold the power button on the side of the watch, when you see the Samsung Gear live logo, swipe across the LCD screen from the top left corner to the bottom right corner. Note: If the device is ON, then press for 8 sec. to reboot the device.
2. Swipe down from the top of the screen to the bottom twice, to select Recovery then swipe to the right to enter.
3. Swipe again down multiple times until you highlight Yes -- delete all user data, swipe right to format your Samsung Gear smartwatch device. All settings will be revert to factory default.
Samsung Gear soft reset / rebootYour watch freezes or has fatal errors
If your Samsung Gear watch freezes or hangs, you may need to close applications and turn on the device to regain functionality. If your device is frozen and unresponsive, press and hold the Power button for more than 8-10 seconds to reboot.
If this does not solve the problem, perform a factory data reset. On the Applications screen, tap Settings → Reset Gear → Reset. Before performing the factory data reset, remember to make back-up copies of all important data stored on the device.